BMW Cooling System Parts & Accessories for BMW Z Series E85/6 (2003-2008)

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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Water Pump And Thermostat Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5376274
Part#: 11517586925TKT
In Stock
Sale - Save 25% $ 448.99

This product was last offered at the strikethrough price on
05-03-2026

$ 338.61 USD
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Sale - Save 25%
$ 448.99

This product was last offered at the strikethrough price on
05-03-2026

$ 338.61 USD
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Everything you need to replace your water pump and thermostat. The water pumps in these BMW models are known for failure near 80,000 miles is a very common issue often times leaving the owner stranded. The aftermarket kit offered provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road. Kit includes: Mahle-Behr thermostat Water pump Genuine BMW coolant thermostat to water pump hose Mounting hardware required for both the thermostat and water pump
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Packaged by Turner - Corporate Logo
T#:339100
Part#: TMS224320
Ships in 1 Business Day
Sale - Save 5% $ 515.99

This product was last offered at the strikethrough price on
08-17-2026

Starting at $ 487.75 USD
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Sale - Save 5%
$ 515.99

This product was last offered at the strikethrough price on
08-17-2026

Starting at $ 487.75 USD
Free Shipping
This is a customizable cooling system overhaul kit, which starts off with the basic radiator and water pump and can be configured to replace all the M54 common cooling system failure parts in one package. This cooling system package is for the 2003-2005 Z4 Roadster.

The Z4 cooling system is much like that of the sister 3 series. Several of the primary cooling components are prone to failure within 60k miles (or less in many cases). A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the radiator & waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your cooling system. Available with our kit is an OEM Behr radiator, an Original BMW water pump (with updated composite impeller), thermostat (complete with housing), radiator cap, new hoses, and other essential cooling parts.

Optional items (which can be added below):
  • Radiator cap
  • Major cooling hoses
  • Original BMW antifreeze
  • Upgrade the water pump to a Stewart EMP High Performance pump
  • Add a new coolant expansion tank (known for cracking)
  • Include a new coolant level sensor (known for failing / throwing "check coolant" messages)
  • Include a new coolant temp sensor (located in the lower radiator hose) (re-using the old sensor and seal may lead to a leak)
  • Add a new thermostat for an automatic transmission (located with the expansion tank).
    This cooling system overhaul kit fits the following BMWs:
    2003-2005 E85 BMW Z4 2.5i Z4 3.0i

    Please put a check in the boxes next to the items you wish to order.
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    Packaged by Turner - Corporate Logo
    T#:554073
    Part#: 11537509227KT3
    Back Ordered
    $ 114.99 USD
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    $ 114.99 USD
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    When it comes time to replace your thermostat, be sure you have everything you need. This kit includes everything you need to replace your thermostat, including the thermostat.

    Kit includes:

    • Mahle-Behr thermostat with gasket
    • Thermostat mounting hardware
    • 1 liter of coolant

    Applications:
    1999-2003 E39 528i, 525i, 530i sedan, touring wagon (M52TU engine, M54 engine)
    1999-2005 E46 323, 328, 325, 330 sedan, coupe, cabrio, touring wagon (M52TU engine, M54 engine)
    2004-2005 E60 525i, 530i sedan, touring wagon (M54 engine)
    2001-2006 E53 X5 3.0 (M54 engine)
    2004-2006 E83 X3 2.5i X3 3.0i (M54 engine)
    1999-2002 Z3 2.3. Z3 2.5i, 2.8 Z3 3.0i (M54 engine)
    2003-2005 Z4 2.5i, Z4 3.0 (M54 engine)

     

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    Packaged by Turner - Corporate Logo
    T#:339099
    Part#: TMS16430
    Ships in 1 Business Day
    Sale - Save 5% $ 515.99

    This product was last offered at the strikethrough price on
    08-17-2026

    Starting at $ 487.75 USD
    Free Shipping
    Sale - Save 5%
    $ 515.99

    This product was last offered at the strikethrough price on
    08-17-2026

    Starting at $ 487.75 USD
    Free Shipping
    This is a customizable cooling system overhaul kit, which starts off with the basic radiator and water pump and can be configured to replace all the M54 common cooling system failure parts in one package. This cooling system package is for the 2003-2005 Z4 Roadster.

    The Z4 cooling system is much like that of the sister 3 series. Several of the primary cooling components are prone to failure within 60k miles (or less in many cases). A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the radiator & waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your cooling system. Available with our kit is an OEM Behr radiator, an Original BMW water pump (with updated composite impeller), thermostat (complete with housing), radiator cap, new hoses, and other essential cooling parts.

    Optional items (which can be added below):
  • Radiator cap
  • Major cooling hoses
  • Original BMW antifreeze
  • Upgrade the water pump to a Stewart EMP High Performance pump
  • Add a new coolant expansion tank (known for cracking)
  • Include a new coolant level sensor (known for failing / throwing "check coolant" messages)
  • Include a new coolant temp sensor (located in the lower radiator hose) (re-using the old sensor and seal may lead to a leak)
  • Add a new thermostat for an automatic transmission (located with the expansion tank).
    This cooling system overhaul kit fits the following BMWs:
    4/2004-2005 E85 BMW Z4 2.5i Z4 3.0i

    Please put a check in the boxes next to the items you wish to order.
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    Stewart Components - Corporate Logo
    T#:3780
    Part#: 888010330
    In Stock
    $ 219.99

    This product was last offered at the strikethrough price on
    06-15-2026

    $ 204.99 USD
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    $ 204.99 USD
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    This high performance water pump is a direct replacement pump designed to fit a wide range of BMW engines with no modifications. That includes accepting the Factory Fan Clutch. The front of the BMW High Performance Water Pump is stock appearing giving it that classic BMW look while the back is all business. Features up to 20% increase of water flow over stock pump, and it TWICE as efficient as factory pump, much less parasitic drag than other pumps, stainless steel impeller, heavy duty bearing, high quality water seal. Manufactured by EMP / Stewart Components. THIS PUMP COMES WITH A LIMITED LIFETIME WARRANTY

    Fits all US Spec M50/52/54 and S50/52 6 cylinder engines including:
    E36 chassis 1992-1999 325,328, 323 and M3
    E46 chassis 1999-2005 323,325,328 &330
    E34 chassis 1991-1995 525i
    E39 chassis 1997-2003 525i, 528i & 530i
    E53 X5 SAV 1999-2003 6 cylinder models
    Z3 2.8 and 3.0 6 cylinder engines.
    Z4 (Not M) including Z4 2.5 & 3.0
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    ECS - Corporate Logo
    T#:363707
    Part#: 001977ECS03A
    In Stock
    Sale - Save 5% $ 104.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 99.74 USD
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    Sale - Save 5%
    $ 104.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 99.74 USD
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    Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock water pump pulley used on the M50/M52/M52TU/M54 engine in the E36, E46, Z3, Z4, and other models. It uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.
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    Coolant Vacuum Purge & Refill Tool Set
    10X Entries Into Our F80 M3 Sweepstakes
    Schwaben - Corporate Logo
    T#:402498
    Part#: 024948SCH01A
    In Stock
    Sale - Save 22% $ 115.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 89.99 USD
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    Sale - Save 22%
    $ 115.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 89.99 USD
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    The Schwaben Coolant Vacuum Fill Tool ensures no air pockets get into your cooling system while you're replacing your coolant - intended for use to refill your cooling system, not for removal. Can be used with Schwaben fluid extractors or with shop air - standard air compressor with a minimum rating of 90 PSI (6.2 bar). Includes all fittings and adapters necessary for use, with a molded storage case to keep your Schwaben Vacuum Fill Tool pristine for future use.
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    Mishimoto - Corporate Logo
    T#:363510
    Part#: MMFANCNTLUPROBE
    In Stock
    9% off MSRP $ 98.00

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 88.99 USD
    Free Shipping
    9% off MSRP
    $ 98.00

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 88.99 USD
    Free Shipping

    Take Control of Your Engine Cooling Fan with Mishimoto's Manual Fan Controller Kit

    Ensure your engine runs at the perfect temperature by using this versatile manual fan controller system, compatible with all 12v fan-equipped vehicles. With adjustable activation temperature settings ranging from 150°F to 240°F, you have precise control over your engine's cooling fan. The kit includes a probe-style temperature sensor and a generous 7 feet of wire, making it suitable for installation in vehicles of various sizes.

    For added convenience, the system is equipped with a built-in A/C override feature, ensuring your cooling system works seamlessly. It's designed to work with one or two electric fans drawing a combined 25 amps or less. The package includes all the essential wiring connectors and hardware needed for a trouble-free installation.

    With a lifetime warranty from Mishimoto, you can trust in the quality and durability of this manual fan controller kit.

    WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to all companies selling products in California.

    Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warnings, visit www.P65Warnings.ca.gov.

    WARNING! Prog 65 may apply to this product.Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm.For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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    CSF High Performance Aluminum Radiator - E46
    For vehicles with manual transmission only
    2X Entries Into Our F80 M3 Sweepstakes
    CSF - Corporate Logo
    T#:384650
    Part#: 3055
    In Stock
    $ 409.00 USD
    Free Shipping
    $ 409.00 USD
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    CSF is one of the premier cooling product specialists available on the market thanks to designs such as their High Performance Aluminum Radiators. Using a single pass designed core, this radiator gives you all the cooling you could ever need. Paired with these radiators are CNC machined brackets and corrosion resistant hardware that allow final installation to have a same as stock fitment! This enables you to have much higher cooling without having to cut away any metal or delete any important components just for the sake of lower coolant temperatures. 

    Features:

    • Two-row, triple-pass design radiator core
    • CNC machined mounting brackets
    • All needed hardware included
    • Hand polished aluminum with a mirror-like finish
    • Stock fitment prevents modification to engine bay

    Fits the following BMWs:
    1998-2006 E46 BMW All Submodels
    2002-2008 E85/86 BMW M Coupe & M Roadster

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    Wahler - Corporate Logo
    T#:360524
    Part#: 11531318274
    In Stock
    $ 105.99

    This product was last offered at the strikethrough price on
    06-25-2026

    $ 93.99 USD
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    $ 93.99 USD
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    Replacement 80* Celcius thermostat for E46 M3, Z3M w S54 engine, Z4M. The thermostat can be replaced on the E46 M3 without removing the water pump. This can save you money if the pump still has life left on it but the thermostat needs to be done now. Symptoms of a bad thermostat include an erratic temp gauge and a fault code. When replacing the thermostat, there are three o-rings that will likely need to be replaced between the thermostat and the water pump housing, and two on the coolant tube going to the head. We also recommend new hoses, clamps, and BMW coolant. Replacement should take about one hour.
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    Mahle-Behr - Corporate Logo
    T#:341203
    Part#: 11537549476
    In Stock
    $ 135.99

    This product was last offered at the strikethrough price on
    09-16-2026

    $ 108.99 USD
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    $ 108.99 USD
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    Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. Many cooling issues start with the thermostat. This is electronically controlled by the engine computer based on the cooling demands from the engine. And cooling components are working harder than ever. Engine performance is also dependent on temperature - as temperatures rise and pass a certain threshold the engine computer will begin reducing power. Stay on top of your cooling maintenance by replacing critical components preventatively. This replacement thermostat fits many of the N51 N52 N53 N54 6 cylinder engines and is an OEM Behr part. 

    The thermostat is located along with the water pump on the side of the engine. To gain access for removal you may need to remove the water pump as well. If the water pump is removed you MUST replace its mounting bolts. You can add them from the options below. We also have a bundled package that includes the water pump, mounting screws, connecting hose, and clamps if you want to replace everything together (recommended). 

    This thermostat fits the following BMWs:
    2008+  E82  BMW 128i 135i
    2007+  E9X  BMW 325i 325xi 328i 328xi 330i 335i 335xi
    2006+  E60  BMW 525i 525xi 528i 528xi 530i 530xi 535i 535xi
    2006+  X3  BMW X3 3.0i X3 3.0si
    2006+  Z4  BMW Z4 3.0i Z4 3.0si
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    Water Pump - N52 3.0L
    10X Entries Into Our F80 M3 Sweepstakes
    Bavarian Autosport - Corporate Logo
    T#:599823
    Part#: 11517586925
    In Stock
    Sale - Save 10% $ 299.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 269.99 USD
    Free Shipping
    Sale - Save 10%
    $ 299.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 269.99 USD
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    Don't take your car's cooling system for granted. A waterpump failure can cost you an engine, which is why preventatively replacing your BMWs waterpump and refreshing the cooling system every 60,000 miles. The water pump is a weak point is the cooling system. Replacing your waterpump will go a long way for keeping your car on the road and operating properly. This water pump fits many 2006 and newer BMW 6 cylinder engines, specifically all the BMWs with the N51, N52, N53 engines. You will also need to purchase replacement aluminum screws Part #11510392553 From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty. This water pump fits the following BMWs: 2008-20xx E82 128i 2006-2006 E90 325i sedan, 330i sedan, 325xi sedan, 330xi sedan 2007-2012 E90 328i sedan, 328xi sedan, 328i xDrive sedan 2007-2012 E92 328i coupe, 328xi coupe, 328i xDrive coupe 2007-2012 E93 328i Convertible 2006-2006 E60 525i, 525xi, 530i, 530xi 2007-2010 E60 528i, 528xi, 528i xDrive 2007-2010 E83 X3 3.0i X3 3.0si 2007-20xx E70 X5 3.0si X5 xDrive30i 2006-2008 E85 Z4 3.0si 2009-20xx E89 Z4 sDrive30i
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    CSF - Corporate Logo
    T#:582698
    Part#: 3709
    In Stock
    $ 110.99 USD
    Free Shipping
    $ 110.99 USD
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    This is a factory original style radiator from CSF and will fit perfectly into the stock location. Cooling will be identical to what your car came with originally. A great replacement with all the proper connections and in all of the proper locations.
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    Mishimoto - Corporate Logo
    T#:363170
    Part#: MMFAN16
    In Stock
    $ 115.99 USD
    Free Shipping
    $ 115.99 USD
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    Pierburg - Corporate Logo
    T#:348906
    Part#: 11517586925
    In Stock
    $ 515.99

    This product was last offered at the strikethrough price on
    09-14-2026

    $ 365.99 USD
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    $ 365.99 USD
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    Don't take your car's cooling system for granted. A waterpump failure can cost you an engine, which is why preventatively replacing your BMWs waterpump and refreshing the cooling system every 60,000 miles. The water pump is a weak point is the cooling system. Replacing your waterpump will go a long way for keeping your car on the road and operating properly. This water pump fits many 2006 and newer BMW 6 cylinder engines, specifically all the BMWs with the N51, N52, N53 engines. You will also need to purchase replacement aluminum screws Part #11510392553 

    Pierburg pumps are some of the most trusted and widely used on the market. From fuel, water, air and vacuum Pierburg has you covered with OE quality and reliable performance year after year.

    This water pump fits the following BMWs:
    2008-20xx E82 128i
    2006-2006 E90 325i sedan, 330i sedan, 325xi sedan, 330xi sedan
    2007-2012 E90 328i sedan, 328xi sedan, 328i xDrive sedan
    2007-2012 E92 328i coupe, 328xi coupe, 328i xDrive coupe
    2007-2012 E93 328i Convertible
    2006-2006 E60 525i, 525xi, 530i, 530xi
    2007-2010 E60 528i, 528xi, 528i xDrive
    2007-2010 E83 X3 3.0i X3 3.0si
    2007-20xx E70 X5 3.0si X5 xDrive30i 
    2006-2008 E85 Z4 3.0si
    2009-20xx E89 Z4 sDrive30i

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    Genuine BMW - Corporate Logo
    T#:360688
    Part#: 11537502525
    In Stock
    $ 90.99 USD
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    $ 90.99 USD
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    Replace your cracked/broken coolant pipe with this Genuine BMW pipe to ensure long term reliability and perfect fitment.

    Aluminized Silicone Water Pump Hose - with clamps
    10X Entries Into Our F80 M3 Sweepstakes
    ECS - Corporate Logo
    T#:568837
    Part#: 020414ECS01KT
    In Stock
    Sale - Save 25% $ 113.99

    This product was last offered at the strikethrough price on
    06-14-2026

    $ 85.49 USD
    Free Shipping
    Sale - Save 25%
    $ 113.99

    This product was last offered at the strikethrough price on
    06-14-2026

    $ 85.49 USD
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    Spal - Corporate Logo
    T#:583648
    Part#: 30100400
    In Stock
    $ 111.99 USD
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    $ 111.99 USD
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    Low profile design makes an easy fit when clearance is an issue. 1300 CFM.

    Spal - Corporate Logo
    T#:598892
    Part#: 185FH
    Back Ordered
    11% off MSRP $ 193.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 171.99 USD
    Free Shipping
    11% off MSRP
    $ 193.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 171.99 USD
    Free Shipping
    SPAL® electric fan wiring harness kits are a must-have when installing electric fans. Designed to safely integrate with OEM wiring, the SPAL kits feature a waterproof relay along with printed wires which aid in installation. The wiring kits also feature stainless steel switches with optional switched override capability, fuse holder, and wiring connectors. Features: Makes installation of your new fan a breeze Designed to safely integrate with OEM wiring Feature a waterproof 10/40 amp relay with printed wires for easy installation Kit features a 3/8” NPT thermos-switch and a 3/8” to ½” NPT adapter Harness is designed for 12V systems only
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    Vargas Turbo Technologies - Corporate Logo
    T#:7530036
    Part#: COOLANTCAPBLUE
    In Stock
    $ 79.99 USD
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    $ 79.99 USD
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    VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit
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    Vargas Turbo Technologies - Corporate Logo
    T#:7530034
    Part#: COOLANTCAPRED
    In Stock
    $ 79.99 USD
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    $ 79.99 USD
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    VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit
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    E46 M3, Z4M ECS Tuning Aluminum Water Pump Pulley
    10X Entries Into Our F80 M3 Sweepstakes
    ECS - Corporate Logo
    T#:367060
    Part#: 002778ECS01
    Ships on Dec 18, 2026
    Sale - Save 10% $ 100.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 90.89 USD
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    Sale - Save 10%
    $ 100.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 90.89 USD
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    Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock water pump pulley used on the S54 engine in the E46 M3, MZ3, and Z4M. It's the same size and uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.
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    ECS - Corporate Logo
    T#:599848
    Part#: 004481LA01
    In Stock
    Sale - Save 15% $ 113.99

    This product was last offered at the strikethrough price on
    06-14-2026

    $ 96.89 USD
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    Sale - Save 15%
    $ 113.99

    This product was last offered at the strikethrough price on
    06-14-2026

    $ 96.89 USD
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    The perfect upgrade for your connection between your thermostat and cylinder head. Designed using durable silicone and billet aluminum to greatly outlast the OE rubber and plastic combination. Some of the weakest points of the cooling systems in BMW's can come down to the OE plastic fittings breaking down from the constant changes in temperature, softening these plastic components. When this happens, even simply moving the hose slightly could cause the fitting to crack, causing the coolant to leak all over. The ECS design silicone hose with billet aluminum adapter retains OE fitment with superior strength to not only handle the performance, but also stand up to the wear and tear of a daily driver. Features: Manufactured from billet 6061-T6 and type III anodized for exceptional durability and corrosion resistance. Much stronger part than OEM plastic Will not become brittle and fatigue over time due to thermal cycling. This will prevent the part from breaking during removal and re-installation. Constructed of 4-Ply reinforced silicone for improved durability over the failure-prone OE rubber hose. Flourosilicone lined internal layer for exceptional chemical resistance. Silicone offers reduced thermal conductivity as well as improved resistance to ozone and UV degradation for improved performance and durability. Follows OEM form for perfect fitment. Utilizes OEM O-ring 11537545278 to ensure a proper seal. Replaces Genuine BMW Part Number: 11537545890
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    AAF Transmission Crossmembers 5-Speed - E46 Non-M
    Fits ZF and Getrag Transmissions. Non-M models Only
    Advanced Auto Fabrication - Corporate Logo
    T#:7608860
    Part#: 116110
    In Stock at Vendor
    $ 190.00 USD
    Free Shipping
    $ 190.00 USD
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    Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. Ideal for the SE46 racing series, the AAF E46 5-speed Transmission Crossmember is a heavy-duty and worthwhile upgrade. The OEM thin cast aluminum cross member has been known to fail in multiple different ways. When using stiff engine and transmission mounts, the cross member can crack out and break around these mounting points. The cross member can also break from the high amounts of load transferred through the drive train. While chassis flex from hard cornering is being applied through the engine and transmission from the front cross member, this load is sent from the transmission back into the chassis at the transmission cross member. This is simply too much stress for the OEM cross member to hold up to under the extreme punishment of road racing. The AAF E46 Transmission Cross Member is completely constructed of 1/4' thick heavy-duty aluminum plate. It is designed specifically to cope with hours of endurance racing.
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    Bav Auto Tools - Corporate Logo
    T#:580397
    Part#: B8800084
    In Stock
    Sale - Save 15% $ 146.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 124.94 USD
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    Sale - Save 15%
    $ 146.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 124.94 USD
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    Pierburg - Corporate Logo
    T#:341216
    Part#: 11517586925KT1
    In Stock
    $ 522.99

    This product was last offered at the strikethrough price on
    09-14-2026

    $ 373.99 USD
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    Ensure your BMW's optimal performance by replacing a failing water pump with this high-quality replacement. Detectable by symptoms like coolant leaks or whining noises from under the hood, a failing water pump can lead to overheating issues. Don't risk engine damage; keep an eye out for warning signs and promptly replace the water pump. This replacement kit includes one-time-use aluminum mounting bolts for a secure installation.

    Product Benefits:

    • Prevents coolant leaks
    • Eliminates whining noises from the engine
    • Avoids overheating issues
    • Includes one-time-use aluminum mounting bolts for secure installation
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    Redline - Corporate Logo
    T#:640437
    Part#: 81205
    In Stock
    $ 68.99 USD
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    $ 68.99 USD
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    Red Line SuperCool Concentrate fortified with WaterWetter is a concentrated antifreeze/coolant designed to maximize the performance of your cooling system with superior protection against cavitation corrosion/erosion. Using SuperCool Concentrate diluted with distilled water protects the entire cooling system keeping new components like new for 5 years/150,000 miles and prevents further damage to older components. Red Line’s proprietary coolant additive formula enhances the fluid’s ability to transfer heat, reducing operating temperatures by up to 20*F and prolonging the life of the entire cooling system. Red Line's SuperCool is an OAT coolant that is a Nitrate and Silicate Free product with its own proprietary corrosion technology to offer superior protection for aluminum engines found in all European vehicles, performance vehicles, as well as other applications. SuperCool will not void the factory warranty either. It can be used to top off the existing coolant of any BMW and will not cause any ill-effects on the cooling system because it is silicate and nitrate free. It is still better to flush it out and switch completely to SuperCool to get all the full benefits of the product in performance and protection.
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    Genuine BMW - Corporate Logo
    T#:360689
    Part#: 11537509227
    In Stock
    3% off MSRP $ 174.45

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 169.69 USD
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    3% off MSRP
    $ 174.45

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 169.69 USD
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    Wahler - Corporate Logo
    T#:360363
    Part#: 11537549476
    In Stock
    $ 96.99 USD
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    $ 96.99 USD
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    If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include a prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance and potential damage to vital components in your vehicle.
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    Mishimoto - Corporate Logo
    T#:8933504
    Part#: MMOCULBK
    In Stock
    $ 536.99 USD
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    $ 536.99 USD
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    Ensure your BMW's engine performs at its peak with the installation of this highly efficient oil cooler from Mishimoto. Even in ideal driving conditions, elevated oil temperatures can lead to decreased pressure and compromised engine lubrication. This comprehensive kit includes four feet of stainless braided line, adapter fittings, and an oil filter sandwich adapter, all meticulously designed to reduce oil temperatures and uphold optimal driving circumstances.

    • Rows: 19
    • Overall Dimensions: 13" x 5.5" x 2"
    • Core Dimensions: 11.25" x 5.5" x 2"
    • Braided Hoses: 4ft .75 inch & 4ft 9 inch
    • Braided Hose Fittings: -10AN
    • Sandwich Plate Fittings: -10AN

    Please take into consideration that this product may be subject to Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968). Proposition 65 is a California law that applies to companies selling products in California and necessitates the disclosure of chemicals known to cause cancer, birth defects, or other reproductive harm when present at levels exceeding specified thresholds. For further information regarding California Prop 65 warnings, visit www.P65Warnings.ca.gov.

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    Mishimoto - Corporate Logo
    T#:637390
    Part#: MMFAN-16C
    In Stock
    $ 117.99 USD
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    $ 117.99 USD
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    This curved blade fan can be used as an upgrade to the OEM fan for more efficient cooling or fitment issues with aftermarket products. With its slim design, the fan can easily be installed flush against a radiator. For universal installation, use Mishimoto universal fan mount kit, T#363171. Features: High-flow curved blade fan provides 1850 cfm of airflow Universal fitment Compact design with a diameter of 16" and an overall thickness of only 3.2" provides increased engine bay space Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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    Genuine BMW - Corporate Logo
    T#:1030
    Part#: 11517509985
    In Stock
    11% off MSRP $ 192.54

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 172.26 USD
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    11% off MSRP
    $ 192.54

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 172.26 USD
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    This Original BMW water pump is the latest updated design with a composite impeller. The composite material (similar to Kevlar) is much stronger than the problematic plastic impeller from past water pumps. And it's lighter than the aftermarket metal impellers so that means less strain on the bearing. For an OE/OEM replacement, we have found that this is the highest quality and longest lasting waterpump available.

    When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

    This waterpump fits the following BMWs:
    1999-2006 E46 3 series - 323i, 323Ci, 328i, 328Ci, 325i, 325Ci, 330i, 330Ci
    1999-2003 E39 5 series - 528i, 525i, 530i
    1999-2002 Z3 Roadster/Coupe - Z3 2.8, Z3 2.5, Z3 3.0
    2004-2006+ X3 SAV - X3 2.5 & 3.0
    2000-2006 X5 SAV - X5 3.0
    2003-2005 Z4 Roadster/Coupe - Z4 2.5 & Z4 3.0
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    Mishimoto - Corporate Logo
    T#:640347
    Part#: MMTS-E46-99V2
    In Stock at Vendor
    $ 135.99 USD
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    $ 135.99 USD
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    Genuine BMW - Corporate Logo
    T#:12502
    Part#: 11531318274
    In Stock
    16% off MSRP $ 147.44

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 123.15 USD
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    16% off MSRP
    $ 147.44

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 123.15 USD
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    GENUINE BMW THERMOSTAT - E46 M3, MZ3 (S54), MZ4. This is just the thermostat itself and does not include the housing o-ring or any others that are advised for replacement. See thermostat kit or our water pump kit for a complete package.

    When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.
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    Mishimoto - Corporate Logo
    T#:363461
    Part#: MMTS-E90-07
    In Stock
    $ 83.99 USD
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    $ 83.99 USD
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    The thermostat regulates the temperature of your coolant. At a predetermined temperature the thermostat will open to let coolant flow to the radiator and be cooled by airflow or the fan. Over time the thermostat will become stuck open or closed, leading to a variety of issues. A closed thermostat will never allow the coolant to reach the radiator and be cooled. Hot coolant will continue to circulate through the engine and absorb even more heat until boiling and the system overheats. An open thermostat is not as bad but is still not ideal - the coolant is always cool, with the temp needle always reading in the cool range. This tells the ECU to richen the fuel mixture to bring the car up to normal operating temp. So your fuel mileage decreases and the car runs rich.   

    Replacing the thermostat is an easy but messy job. This thermostat includes the main o-ring (but a housing gasket may be required). Consider replacing the housing and any associated temp sensors while you're in there. The cooling system will need to be bled after.  

    For vehicles with plastic thermostat housing 

      

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    Spal - Corporate Logo
    T#:376582
    Part#: 30102049
    Ships in 10 Business Days
    $ 207.99 USD
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    $ 207.99 USD
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    For BMW owners seeking enhanced airflow or tighter engine compartment clearance, Turner Motorsport presents a Universal Fan. Ideal for applications like aftermarket turbo setups, this fan ensures optimal cooling performance. Please note that this fan is universal and may require modification to fit your specific application. Crafted in Italy, this fan boasts dimensions of 16.30in x 15.75in x 3.47in and provides an airflow of 2024 CFM.

    • Enhanced airflow for improved engine cooling
    • Ideal for applications with tight tolerances, such as aftermarket turbo setups
    • Universal design allows for versatile installation
    • Crafted in Italy for quality assurance
    • Compact size with powerful airflow capacity
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    Spal - Corporate Logo
    T#:598821
    Part#: 30101516
    Ships in 2 Business Days
    11% off MSRP $ 168.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 149.99 USD
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    11% off MSRP
    $ 168.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 149.99 USD
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    1469 CFM. High performance puller fan with straight blades. This is a universal fan for applications that require more air flow or for engine compartments that have tight tolerances such as an aftermarket turbo set up that needs more clearance. This fan is universal and you must make it fit your application. It is not a direct bolt on. Made in Italy. Size: 16.3in x 15.75in x 2.48in Airflow (CFM): 1469
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    Mahle-Behr - Corporate Logo
    T#:341098
    Part#: 11537509227
    Ships in 1 Business Day
    $ 104.39

    This product was last offered at the strikethrough price on
    08-14-2026

    $ 104.28 USD
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    $ 104.28 USD
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    Replacement stock MAP thermostat with plastic housing and gasket for E46, E39, E60, X5, Z4 - M54 engine, M52TU engine. Your car may still operate fine according the instrument display but the electrically-operated thermostat may be going bad. This new thermostat includes the thermostat gasket, ready to install in your BMW.

    Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.

    Applications:
    1999-2003 E39 528i, 525i, 530i sedan, touring wagon (M52TU engine, M54 engine)
    1999-2005 E46 323, 328, 325, 330 sedan, coupe, cabrio, touring wagon (M52TU engine, M54 engine)
    2004-2005 E60 525i, 530i sedan, touring wagon (M54 engine)
    2001-2006 E53 X5 3.0 (M54 engine)
    2004-2006 E83 X3 2.5i X3 3.0i (M54 engine)
    1999-2002 Z3 2.3. Z3 2.5i, 2.8 Z3 3.0i (M54 engine)
    2003-2005 Z4 2.5i, Z4 3.0 (M54 engine)

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    Genuine BMW Radiator Hose - Lower - Z4 2.5i 3.0i M54
    For roadster models with production date up to 04/2004
    Genuine BMW - Corporate Logo
    T#:22531
    Part#: 17127514405
    In Stock
    10% off MSRP $ 99.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 91.99 USD
    Limited Qty Sale
    Free Shipping
    10% off MSRP
    $ 99.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 91.99 USD
    Limited Qty Sale
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    Genuine BMW Water Hose -
    This item fits the following BMW Chassis:
    E85

    Fits BMW Engines including:
    M54


    ECS Silicone Radiator Hoses - N52
    For SULEV Vehicles with Engine Code N51B30 & Auxiliary Heating (S536A)
    10X Entries Into Our F80 M3 Sweepstakes
    ECS - Corporate Logo
    T#:32516370
    Part#: 008641LA02
    In Stock
    Sale - Save 20% $ 130.99

    This product was last offered at the strikethrough price on
    06-14-2026

    $ 104.79 USD
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    Sale - Save 20%
    $ 130.99

    This product was last offered at the strikethrough price on
    06-14-2026

    $ 104.79 USD
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    Tired of dealing with brittle, dry-rotted rubber hoses? Whether you're refreshing your cooling system or replacing aging components, this ECS Silicone Radiator Coolant Hose Set is the ultimate upgrade. Designed for durability, performance, and a factory-perfect fit, these premium silicone hoses outperform standard rubber in every way.

    Why Choose Silicone Over Rubber?

    Made from heavy-duty, reinforced 4-ply fluorosilicone, ECS hoses withstand extreme temperatures and pressures far beyond OEM rubber hoses. Engineered to resist oil, fuel, and electrochemical degradation, these hoses are tested for continuous operation at 250°F and over 45 psi, delivering superior reliability, reduced turbulence, and improved coolant flow.

    Key Benefits:

    Direct OE Fitment – Perfectly molded to factory specifications for seamless installation. Enhanced Durability – Heat-resistant silicone prevents cracking, swelling, and deterioration over time. Superior Cooling Performance – Smoother internal passageways improve coolant flow and system efficiency. Pre-Installed Quick-Connect Fittings – Hassle-free installation with OEM-style connectors. Premium Hardware Included – Comes with German-style stainless steel worm-drive hose clamps for a secure fit. Kit Includes:

    Upper Radiator Hose Lower Radiator Hose Pre-Installed Factory "Quick-Connect" Flanges (4) Stainless Steel Worm-Drive Hose Clamps (4) Replaces OEM Part Numbers: 17127531579 & 17127564478

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    Nissens - Corporate Logo
    T#:362222
    Part#: 17119071519
    In Stock
    $ 173.39

    This product was last offered at the strikethrough price on
    06-02-2026

    $ 166.36 USD
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    $ 166.36 USD
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    The cooling system is a weak point on any E46. Many cars develop issues in as few as 50,000 miles.

    Overheating an inline 6 engine almost always results in large repair bill, and sometimes a warped cylinder head.

    Replace yours with a high-quality OEM Nissens radiator to prevent further issues and potential overheating.

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    ECS High-Flow Water Pump Upgrade - E9X E8X N52
    10X Entries Into Our F80 M3 Sweepstakes
    ECS - Corporate Logo
    T#:49822518
    Part#: 044952LA04KT
    In Stock
    Sale - Save 25% $ 477.99

    This product was last offered at the strikethrough price on
    06-14-2026

    $ 358.49 USD
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    Sale - Save 25%
    $ 477.99

    This product was last offered at the strikethrough price on
    06-14-2026

    $ 358.49 USD
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    The N5X family of engines marked the start of a new era for BMW. The all-new aluminum block powerplants featured a host of technical upgrades, aiding in power output, reliability, and performance. Among these technological advances is an external electronic water pump, which removed load from the engine's accessory drive and allowed for advanced pulse-width-modulated (PWM) control.

    From factory, the N52's electronic water pump is limited to a measly 200W output—strong enough for daily driving, but lacking in performance applications. Recognizing this shortcoming, ECS engineers set out to create a high-flow water pump upgrade that doesn't break the bank. Their high-quality adapter wiring harness and bracket allow you to install a 400W N54 water pump without any modification, an effortless, yet effective upgrade that doubles the output of the factory water pump!

    By increasing coolant flow capacity, the 400W pump improves heat extraction from the cylinder head and engine block during high-load operation. This added thermal headroom is particularly beneficial for modified engines, sustained aggressive driving, track use, or operation in elevated ambient temperatures where the factory pump can operate near its limits. Improved circulation helps maintain more stable coolant temperatures and reduces the risk of localized hot spots.

    Features & Benefits:

    Upgrades to the more powerful 400W N54 water pump for increased coolant flow and improved engine cooling efficiency Sealed adaptor harness ensures secure connections and optimal operation under demanding conditions The N54 pump's higher power output offers longer-lasting, more effective cooling compared to the stock N52 pump Design:

    40A fused power wire safely handles the increased power demands of the N54 pump, providing consistent and stable performance Sealed and robust construction, designed to withstand heat and moisture, ensuring reliability in even the most challenging environments Plug-and-play compatibility is designed for easy integration with the N52 engine and N54 water pump, minimizing installation time and complexity Kit Contents:

    ECS N54 Water Pump Adapter Kit Conversion wiring harness Aluminum bracket Installation hardware Bavarian Autosport Water Pump (11517632426)

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    URO Premium Aluminum Water Pipe - BMW M52TU M54
    2X Entries Into Our F80 M3 Sweepstakes
    URO Premium - Corporate Logo
    T#:587659
    Part#: 11537502525PRM
    Ships in 1 Business Day
    $ 71.99 USD
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    $ 71.99 USD
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    This plastic coolant water pipe connects the expansion tank return hose with the engine block
    Mahle-Behr - Corporate Logo
    T#:341065
    Part#: 17119071519
    Ships in 1 Business Day
    $ 271.99

    This product was last offered at the strikethrough price on
    08-17-2026

    $ 232.99 USD
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    $ 232.99 USD
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    This is a Hella brand (OEM supplier to BMW) replacement radiator for all 1999-2006 E46 3 series (non-M), including 323i, 323Ci, 328i, 328Ci, 325i, 325Ci, 330i, 330Ci, and Z4 2.5 and 3.0. Compare to BMW list price of $318! Save big, while still getting the highest quality radiator available for your BMW.

    Hella is a premium manufacturer that supplies automotive parts to numerous car brands across the world. Everything from electrical to mechanical genuine parts have been made and supplied directly to BMW before the vehicles ever leave the production floor. Their high quality, long lasting parts have made them a trusted brand chosen to help keep your BMW on the road for many years to come.

    As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

    This radiator fits the follow BMWs::
    Only for Automatic Transmission 
    1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi - Not for cars with M56 engine

    2006-2008 E85 E86 Z4 BMW Z4 M Coupe Z4 M Roadster

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    Wahler - Corporate Logo
    T#:374361
    Part#: N524TSTKT1
    In Stock
    $ 111.99 USD
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    $ 111.99 USD
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    Genuine BMW - Corporate Logo
    T#:7457
    Part#: 17117573751
    Ships in 1 day
    $ 289.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 189.99 USD
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    $ 189.99 USD
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    This high quality Genuine BMW brand expansion tank is used on M54 and N52 engines, and is a common failure item on all E85 Z4's. Be leary of competitors selling this part for less -- is it a Genuine BMW? Probably not.

    If you are overhauling your coolant system, now is the time to consider preventative replacing this expansion tank. These are known to go bad, causing a leak which can leave you stranded. We have found that the expansion tanks should be replaced based on age as well as condition. Expansion tanks seem to have a lifespan of less than six years before they show signs of fatigue and wear. Pre-emptively replacing the expansion tank as part of an overall maintenance plan can prevent you from getting stranded from a sudden failure later on.

    When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

    This item fits the following BMWs:
    2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si
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    Mishimoto - Corporate Logo
    T#:1256484
    Part#: MMOCULTBK
    Ships in 7 Business Days
    $ 599.99 USD
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    $ 599.99 USD
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    Introducing Mishimoto's Universal Oil Cooler (19 row with Thermostat)

    In pursuit of optimal engine lubrication, even under ideal driving conditions, is paramount for BMW owners. Elevated oil temperatures can compromise oil pressure and hinder efficient lubrication. Turner Motorsport's new oil cooler offers a solution to maintain cool oil temperatures, ensuring your engine functions at its best. This comprehensive kit includes four feet of stainless braided line, adapter fittings, and an oil filter sandwich adapter.

    Key Features:

    • Effective Heat Dissipation: The oil cooler efficiently dissipates heat, keeping oil temperatures within the optimal range for peak engine performance.
    • Comprehensive Kit: This kit includes four feet of stainless braided line, adapter fittings, and an oil filter sandwich adapter, providing everything you need for a seamless installation.
    • Precise Temperature Control: Equipped with a thermostat for fine temperature and flow control, ensuring the ideal oil temperature is maintained.
    • Proposition 65 Compliant: This product complies with Proposition 65, a California law that ensures product safety.

    Elevate your BMW's engine performance and protect it from the effects of elevated oil temperatures. Turner Motorsport has the solution you need.

    WARNING! Prop 65 may apply to this product.

    Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to all companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm.

    For more information about California Prop 65 warning, see: www.P65Warnings.ca.gov.

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    VTT Billet Coolant Reservoir Cap - Anodized Clear - Most BMWs 2006+ (...
    This coolant cap retains ALL of the factory provisions by simply allowing you to snap t...
    2X Entries Into Our F80 M3 Sweepstakes
    Vargas Turbo Technologies - Corporate Logo
    T#:7530035
    Part#: COOLANTCAPRAW
    Ships in 3 Business Days
    $ 78.99 USD
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    $ 78.99 USD
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    VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit
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    Genuine BMW - Corporate Logo
    T#:2746
    Part#: 11517838135
    Ships in 1 day
    6% off MSRP $ 800.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 753.99 USD
    Free Shipping
    6% off MSRP
    $ 800.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 753.99 USD
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    Don't take your car's cooling system for granted!One of the biggest weak points is the cooling system. Replacing your waterpump will go a long way for keeping your car on the road and operating properly. This water pump fits MZ3s & MZ4s with S54 engines. Genuine BMW. direct replacement for 11517838160 and 11517831908

    When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

    This item fits the following BMWs:
    2001-2002 Z3 BMW Z3 M Coupe Z3 M Roadster
    2006-2008 E85 BMW Z4 M Roadster M Coupe
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    Genuine BMW - Corporate Logo
    T#:348485
    Part#: 17111437362
    Ships in 1 day
    4% off MSRP $ 134.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 130.00 USD
    Free Shipping
    4% off MSRP
    $ 134.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 130.00 USD
    Free Shipping

    Ensure optimal performance and temperature regulation in your BMW's automatic transmission with the Turner Motorsport Genuine Automatic Transmission Thermostat, part number 17111437362. This thermostat serves as a crucial component of the heat exchanger system, maintaining proper fluid temperatures for smooth transmission operation. Typically replaced during expansion tank maintenance, this Genuine BMW part guarantees reliability and compatibility with your vehicle.

    Key Benefits:

    • Genuine BMW quality assurance
    • Maintains proper transmission fluid temperatures
    • Ensures smooth transmission operation
    • Direct replacement for OEM thermostat
    • Compatible with expansion tank replacement
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