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 - BMW N52 3.0L
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T#:17073598
Part#: 11537549476KT
In Stock
Sale - Save 25% $ 424.99

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

$ 318.58 USD
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$ 424.99

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

$ 318.58 USD
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Includes everything you may need to replace your water pump and thermostat.
Water Pump And Thermostat Kit
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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

$ 336.28 USD
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Sale - Save 25%
$ 448.99

This product was last offered at the strikethrough price on
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$ 336.28 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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Complete Cooling System Overhaul Package - 2003-4/2004 Z4 2.5 3.0 ...
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Packaged by Turner - Corporate Logo
T#:339100
Part#: TMS224320
In Stock
Sale - Save 11% $ 508.99

This product was last offered at the strikethrough price on
12-23-2025

Starting at $ 451.24 USD
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Sale - Save 11%
$ 508.99

This product was last offered at the strikethrough price on
12-23-2025

Starting at $ 451.24 USD
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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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    Thermostat Replacement Kit - E39 E46 E60 E53 Z3 Z4 With M54, M52TU En...
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    Packaged by Turner - Corporate Logo
    T#:554073
    Part#: 11537509227KT3
    Ships on Nov 24, 2026
    $ 98.99 USD
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    $ 98.99 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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    Water Pump and Thermostat Package - N51/N52 Engine - E82 128i, E9X 32...
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    Packaged by Turner - Corporate Logo
    T#:42873693
    Part#: TMS206099GKT
    In Stock
    $ 726.44 USD
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    Our water pump/thermostat overhaul includes:

    • Electric Water Pump
    • Aluminum mounting screws for water pump
    • Thermostat
    • Connecting hose from thermostat to water pump 
    • Hose clamps

     

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    Complete Cooling System Overhaul Package - 4/2004-2005 Z4 2.5 3.0 ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:339099
    Part#: TMS16430
    In Stock
    Sale - Save 11% $ 508.99

    This product was last offered at the strikethrough price on
    12-23-2025

    Starting at $ 451.24 USD
    Free Shipping
    Sale - Save 11%
    $ 508.99

    This product was last offered at the strikethrough price on
    12-23-2025

    Starting at $ 451.24 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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    Water Pump & Thermostat Kit - BMW Z3 Z4 S54 3.2L
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    Packaged by Turner - Corporate Logo
    T#:48194755
    Part#: ZS54WPTKT2
    Ships on Oct 20, 2026
    New Item
    $ 965.99

    This product was last offered at the strikethrough price on
    04-22-2026

    $ 934.99 USD
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    $ 934.99 USD
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    It is important that your coolant system is serviced at regular intervals to ensure a long life. Over time, coolant systems are exposed to high temperatures and repeated thermal cycling, which causes warping, cracking, and hardening of plastics and rubber components in the coolant system. This can lead to coolant leaks and overheating, which can result in extensive engine damage if not resolved in a timely manner. This Water Pump & Thermostat kit helps to address a few of the most problematic parts, replacing these items entirely to keep your cooling system running optimally and efficiently.
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    BMW Antifreeze Coolant - 1 Gallon
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    Genuine BMW - Corporate Logo
    T#:1474
    Part#: 82141467704
    In Stock
    6% off MSRP $ 28.25

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

    $ 26.48 USD
    Free Shipping on orders $49 and up
    6% off MSRP
    $ 28.25

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

    $ 26.48 USD
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    The use of Original BMW Anti-Freeze/Coolant will ensure sufficient cooling in summer and protection against freeze-ups in winter. BMW Antifreeze/Coolant will also guard your vehicle's various engine components against corrosion.
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    Water Pump - M50, M52, M52TU, and M54 Engines with Metal Impeller ...
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    Geba - Corporate Logo
    T#:341052
    Part#: 11517527910
    In Stock
    $ 105.99

    This product was last offered at the strikethrough price on
    02-27-2026

    $ 62.99 USD
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    $ 62.99 USD
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    The early M50/M52 engines had a serious weak point: the water pump. BMW originally used a plastic impeller in the waterpump. This would degrade over time and eventually break apart. Your car overheats immediately. This water pump is an updated one with a metal impeller. BMW has since released a water pump with a composte impeller that does not have the same issues and is just as reliable as the metal impeller version. But for piece of mind, the metal impeller is tough to beat.

    Geba builds all of their pumps to exceed factory specifications by using a metal impeller. This offers a huge improvement over stock and a massive increase in reliability. Servicing all major European models, Geba has you covered when it comes time for a new water pump.

    This waterpump fits the following BMWs:
    1999-2006  E46 BMW  323i, 323Ci, 328i, 328Ci, 325i, 325Ci, 325xi, 330i, 330Ci, 330xi
    1997-2003  E39 BMW  528i, 525i, 530i
    2004-2010  E83 BMW  X3 2.5i & 3.0i
    2000-2006  E53 BMW  X5 3.0i
    1997-2002  Z3 BMW  Z3 2.8, Z3 2.5, Z3 3.0, MZ3 (S52)
    2003-2005  E85 BMW  Z4 2.5i & Z4 3.0i
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    PENTOFROST NF 50/50 Antifreeze / Coolant Prediluted / Premixed - 1 G...
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    2X Entries For Our G87 M2 Sweepstakes!
    Pentosin - Corporate Logo
    T#:34181293
    Part#: 8114308
    In Stock
    $ 20.99 USD
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    Thermostat
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    Bremmen Parts - Corporate Logo
    T#:15511826
    Part#: 11537549476
    In Stock
    Sale - Save 18% $ 84.99

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

    $ 69.99 USD
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    Sale - Save 18%
    $ 84.99

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

    $ 69.99 USD
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    Overheating your N52 or N54 engine can be detrimental to the longevity of your engine. We also recommend replacing your hardware 07119903851 x2
    OEM Wahler Thermostat With Housing - E46 E53 E60 E83 M54
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    Wahler - Corporate Logo
    T#:341054
    Part#: 11537509227
    In Stock
    $ 66.99 USD
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    $ 66.99 USD
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    Stop leaks before they start with this new Thermostat With Housing from Wahler. Despite the fact that most BMW models are brilliant, most have common issues that can plague you during your ownership of the car. This part is one of those issues, as they are known to crack over time. This replacement part is perfect stop a crack and possibly a leak before it starts.
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    Genuine BMW Temperature Sensor
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    Genuine BMW - Corporate Logo
    T#:367843
    Part#: 13621433076
    In Stock
    16% off MSRP $ 66.05

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

    $ 55.45 USD
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    16% off MSRP
    $ 66.05

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

    $ 55.45 USD
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    Elring Freeze Plug
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    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Elring - Corporate Logo
    T#:591492
    Part#: 11117530262
    In Stock
    $ 25.99

    This product was last offered at the strikethrough price on
    04-06-2026

    $ 21.99 USD
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    $ 21.99 USD
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    Replace your missing freeze plug today - 110x13mm
    OEM Wahler 80 Degree Thermostat - E46 M3, MZ3 S54, Z4 M
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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
    06-02-2026

    $ 68.99 USD
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    $ 68.99 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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    Genuine BMW Heater Inlet Pipe - E46 E39 E53 E83 E85 Z3
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    Genuine BMW - Corporate Logo
    T#:6939
    Part#: 11531705210
    In Stock
    1% off MSRP $ 66.99

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

    $ 65.99 USD
    Free Shipping on orders $49 and up
    1% off MSRP
    $ 66.99

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

    $ 65.99 USD
    Free Shipping on orders $49 and up
    This is the Genuine BMW plastic heater inlet pipe that connects the cylinder head to the heater inlet on cars with the M52 or M54 engine.The plastic on this hose becomes brittle over time and eventually leads to failure.

    This item fits the following BMWs:
    1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
    1999-2003 E39 BMW 525i 528i 530i
    2004-2006 E83 BMW X3 2.5i X3 3.0i - M54 engine
    2000-2006 E53 BMW X5 3.0i
    1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
    2003-2005 E85 BMW Z4 2.5i Z4 3.0i
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    Genuine BMW Water Pipe - E46 E39 Z4 Z3 (M52 M54)
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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.
    Genuine BMW Expansion Tank Cap - E3X / E53 / Z4
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    Genuine BMW - Corporate Logo
    T#:207187
    Part#: 17117639022
    Ships in 1-2 days
    21% off MSRP $ 34.96

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

    $ 27.67 USD
    Free Shipping on orders $49 and up
    21% off MSRP
    $ 34.96

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

    $ 27.67 USD
    Free Shipping on orders $49 and up


    Genuine BMW Radiator Cap - 2,0Bar
    This item fits the following BMW Chassis:
    E36 M3,E39 M5,E46 M3,E85 Z4M,E53 48IS,E36,E38,E39,E46,E53 X5,E65,E83 X3,E85 Z4,E86 Z4,F06,F10,F12,F13

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    Genuine BMW Auxiliary Fan Switch
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    Genuine BMW - Corporate Logo
    T#:341058
    Part#: 13621433077
    In Stock
    16% off MSRP $ 66.05

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

    $ 55.55 USD
    Free Shipping on orders $49 and up
    16% off MSRP
    $ 66.05

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

    $ 55.55 USD
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    Genuine BMW Transmission Drain Plug - Manual Transmission - Multiple ...
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    Genuine BMW - Corporate Logo
    T#:15238
    Part#: 23127602815
    In Stock
    7% off MSRP $ 24.30

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

    $ 22.50 USD
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    7% off MSRP
    $ 24.30

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

    $ 22.50 USD
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    Genuine BMW Screw Plug - M18X1,5X12
    This item fits the following BMW Chassis:
    E82 1M Coupe,E82,E85 Z4,E89 Z4,E90,E92,E93,F22,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83

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    OEM Mahle-Behr Thermostat - E82 E9X E60 X3 Z4 with N52 N54 engines ...
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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
    06-02-2026

    $ 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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    FAE Coolant Temperature Sensor - E46 E39 E82 E9X E60 E63 E38 E65 X3 X...
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    FAE - Corporate Logo
    T#:2472
    Part#: 13621433077
    In Stock
    $ 22.99 USD
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    $ 22.99 USD
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    This Cooling system temperature sensor mounts into the lower radiator hose.

    This item fits the following BMWs:
    2008+ E82 BMW 128i
    1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
    2006+ E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi
    2007+ E92 BMW 328i 328xi 328i xDrive
    2007+ E93 BMW 328i
    1999-2003 E39 BMW 525i 528i 530i 540i M5
    2004-2010 E60 BMW 525i 525xi 530i 530xi 545i 550i M5
    2004+ E63 BMW 645ci 650i M6
    1999-2001 E38 BMW 740i 740il 750il
    2002-2008 E65 BMW 745i 745li 750i 750li 760i 760li
    2004-2006 E83 BMW X3 2.5i X3 3.0i
    2000-2006 E53 BMW X5 3.0i X5 4.4i X5 4.6is X5 4.8is
    2007-2013 E70 BMW X5 3.0si X5 4.8i X5 xDrive30i X5 xDrive48i X5M
    2007-2014 E71 BMW X6 xDrive50i X6M
    2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe
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    Genuine BMW Manual Transmission Crossmember
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    Genuine BMW - Corporate Logo
    T#:49465
    Part#: 22316760531
    Ships on Nov 24, 2026
    78% off MSRP $ 263.99

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

    $ 58.99 USD
    Free Shipping on orders $49 and up
    78% off MSRP
    $ 263.99

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

    $ 58.99 USD
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    Genuine BMW Gearbox Support
    This item fits the following BMW Chassis:
    E85 Z4M,E46,E85 Z4,E86 Z4

    OEM Pierburg Water Pump - 128i, 325i/328i/330i, 525i/528i/530i, X3, X...
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    Pierburg - Corporate Logo
    T#:348906
    Part#: 11517586925
    In Stock
    $ 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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    CSF OE Style Radiator - E85/86 Z4 M, E46 Non-M (Automatic Transmissio...
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    2X Entries For Our G87 M2 Sweepstakes!
    CSF - Corporate Logo
    T#:582698
    Part#: 3709
    In Stock
    $ 110.99 USD
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    $ 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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    Hepu New Water Pump - With O-Ring - E34, E36, E39, E46, E53, E60, E83...
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    Hepu - Corporate Logo
    T#:369443
    Part#: 11517527910
    In Stock
    $ 65.99 USD
    Free Shipping on orders $49 and up
    Due to high failure rate on BMW water pumps, we recommend replacement every 60,000 mile interval. Hepu's replacement water pump 11517527910 features a durable metal impeller, while the more expensive Genuine BMW utilizes a high failure plastic impeller.
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    BMW M52 M54 Water Pipe
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    Rein - Corporate Logo
    T#:594294
    Part#: 11537502525
    In Stock
    $ 55.99 USD
    Free Shipping on orders $49 and up

    BMW M52 M54 Water Pipe is an essential replacement part designed to ensure long-term reliability and optimal performance for your BMW's cooling system. Engineered to replace cracked or broken coolant pipes, this high-quality water pipe from Turner Motorsport guarantees a perfect fit and dependable service. Investing in this replacement pipe helps prevent overheating and potential engine damage, maintaining your vehicle's performance and longevity.

    • Reliable replacement: Designed to replace cracked or broken coolant pipes for improved engine cooling.
    • Optimal fitment: Engineered to ensure a perfect fit and seamless installation.
    • Durable construction: Built with high-quality materials to withstand engine temperatures and environmental conditions.
    • Preventative maintenance: Helps avoid overheating and potential engine damage by ensuring a reliable coolant flow.
    • Vehicle compatibility: Specifically designed for BMW M52 and M54 engine models.

    Upgrade your BMW’s cooling system with the BMW M52 M54 Water Pipe from Turner Motorsport for enhanced reliability and performance.

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    Heater Inlet Pipe
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    Rein - Corporate Logo
    T#:594330
    Part#: 11531705210
    In Stock
    $ 40.99 USD
    Free Shipping on orders $49 and up
    This is the plastic heater inlet pipe that connects the cylinder head to the heater inlet on cars with the M52 or M54 engine.The plastic on this hose becomes brittle over time and eventually leads to failure.
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    URO Thermostat Assembly With Aluminum Housing
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    URO Premium - Corporate Logo
    T#:37858365
    Part#: 11537509227PRM
    In Stock
    $ 89.99 USD
    Free Shipping on orders $49 and up
    $ 89.99 USD
    Free Shipping on orders $49 and up
    Get rid of the brittle plastic OEM thermostat housing when replacing the thermostat with this Aluminum Housing alternative! Comes with thermostat and gasket.
    Water Pump Gasket - S54
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    Genuine BMW - Corporate Logo
    T#:12466
    Part#: 11517831099
    In Stock
    14% off MSRP $ 41.99

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

    $ 36.13 USD
    Free Shipping on orders $49 and up
    14% off MSRP
    $ 41.99

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

    $ 36.13 USD
    Free Shipping on orders $49 and up
    Steel water pump gasket for your Z3 / M3

    Genuine BMW Thermostat With Housing - M52 M54
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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
    Free Shipping
    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
    Free Shipping
    Graf New Water Pump - With O-Ring - E34, E36, E39, E46, E53, E60, E83...
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    Graf - Corporate Logo
    T#:368839
    Part#: 11517527910
    In Stock
    $ 76.69

    This product was last offered at the strikethrough price on
    05-11-2026

    $ 75.34 USD
    Free Shipping on orders $49 and up
    $ 75.34 USD
    Free Shipping on orders $49 and up
    Due to high failure rate on BMW water pumps, we recommend replacement every 60,000 mile interval. Graf's replacement water pump 11517527910 features a durable metal impeller, while the more expensive Genuine BMW utilizes a high failure plastic impeller.
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    Water Pump - M52tu, M54 (Original BMW)
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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
    Free Shipping
    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
    Free Shipping
    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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    Water Pump - With Mounting Hardware - E6X E8X E9X
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    Pierburg - Corporate Logo
    T#:341216
    Part#: 11517586925KT1
    In Stock
    $ 373.99 USD
    Free Shipping
    $ 373.99 USD
    Free Shipping

    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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    OEM Wahler Thermostat Assembly - E60/61 E82/88 E9X Z4 N51/N52 ...
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    Wahler - Corporate Logo
    T#:360363
    Part#: 11537549476
    In Stock
    $ 97.91

    This product was last offered at the strikethrough price on
    03-25-2026

    $ 96.99 USD
    Free Shipping
    $ 96.99 USD
    Free Shipping
    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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    Genuine BMW Freeze Plug - N54 3.0L N52 3.0L N55 3.0L
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    Genuine BMW - Corporate Logo
    T#:30761
    Part#: 11117530262
    Ships in 1-2 days
    10% off MSRP $ 34.32

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

    $ 30.99 USD
    Free Shipping on orders $49 and up
    10% off MSRP
    $ 34.32

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

    $ 30.99 USD
    Free Shipping on orders $49 and up


    Genuine BMW Cover Lid - 110X13
    This item fits the following BMW Chassis:
    E82 1M Coupe,E70 X5,E71 X6,E82,E83 X3,E85 Z4,E86 Z4,E89 Z4,E90,E92,E93,F01,F02,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4 X4,F30,F32,F33,F34,F36,F80 M3,F82 M4,F83

    Fits BMW Engines including:
    N51,N52,N52N,N54,N54T,N55,S55

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    Thermostat With Housing
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Bremmen Parts - Corporate Logo
    T#:26494584
    Part#: 11537509227
    In Stock
    Sale - Save 18% $ 60.99

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

    $ 49.99 USD
    Free Shipping on orders $49 and up
    Sale - Save 18%
    $ 60.99

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

    $ 49.99 USD
    Free Shipping on orders $49 and up
    Radiator Adjustment Screw / Drain Plug
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    URO - Corporate Logo
    T#:37959694
    Part#: 17107523260
    In Stock
    $ 56.99 USD
    Free Shipping on orders $49 and up
    Constructed from high-strength, heat-resistant plastic, this component is designed to endure extreme temperatures and fluctuating pressure levels, ensuring the cooling system functions optimally and maintains peak efficiency.
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    OEM Mahle-Behr Thermostat - E39 E46 E60 E53 Z3 Z4 with M54, M52TU eng...
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    Mahle-Behr - Corporate Logo
    T#:341098
    Part#: 11537509227
    Ships in 2 Business Days
    $ 103.81 USD
    Free Shipping
    $ 103.81 USD
    Free Shipping

    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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    BMW Water Pump - Remanufactured - 11517527799
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    URO - Corporate Logo
    T#:372932
    Part#: 11517527799
    In Stock
    $ 42.99 USD
    Free Shipping on orders $49 and up
    Features a metal impeller for reliability

    OEM Nissens Radiator - Automatic - E46, Z4
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    Nissens - Corporate Logo
    T#:362222
    Part#: 17119071519
    Ships in 2 Business Days
    $ 173.39

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

    $ 169.24 USD
    Free Shipping
    $ 169.24 USD
    Free Shipping

    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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    Genuine BMW Radiator Hose - Lower - Z4 2.5i 3.0i M54
    For roadster models with production date up to 04/2004
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:22531
    Part#: 17127514405
    In Stock
    8% 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
    8% 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


    Genuine BMW Water Hose -
    This item fits the following BMW Chassis:
    E85

    Fits BMW Engines including:
    M54


    URO Thermostat - E60, E61, E82, E83, E88, E90, E91, E92, E93, Z4 ...
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    URO - Corporate Logo
    T#:591812
    Part#: 11537549476
    In Stock
    $ 74.99 USD
    Free Shipping on orders $49 and up
    Restore proper function to your cooling system
    Additional Water Pump - E90, E92, E93, Z4
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    Genuine BMW - Corporate Logo
    T#:24649
    Part#: 64118369806
    Ships in 1-2 days
    9% off MSRP $ 297.99

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

    $ 270.99 USD
    Free Shipping
    9% off MSRP
    $ 297.99

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

    $ 270.99 USD
    Free Shipping


    Genuine BMW Additional Water Pump
    This item fits the following BMW Chassis:
    E85 Z4M,E85 Z4,E86 Z4,E90,E92,E93


    Genuine BMW Radiator Carrier - Right
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    Genuine BMW - Corporate Logo
    T#:45593
    Part#: 17107524914
    In Stock
    9% off MSRP $ 73.99

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

    $ 66.99 USD
    Free Shipping on orders $49 and up
    9% off MSRP
    $ 73.99

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

    $ 66.99 USD
    Free Shipping on orders $49 and up


    Genuine BMW Module Carrier

    This item fits the following BMW Chassis:
    E82 1M Coupe,E82,E89 Z4,E90,E92,E93

    Fits BMW Engines including:
    M57,N20,N51,N52,N52N,N54,N54T,N55,S65

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    Genuine BMW Radiator Carrier - Left
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    Genuine BMW - Corporate Logo
    T#:45592
    Part#: 17107524912
    In Stock
    9% off MSRP $ 73.99

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

    $ 66.99 USD
    Free Shipping on orders $49 and up
    9% off MSRP
    $ 73.99

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

    $ 66.99 USD
    Free Shipping on orders $49 and up


    Genuine BMW Module Carrier
    This item fits the following BMW Chassis:
    E82 1M Coupe,E82,E89 Z4,E90,E92,E93

    Thermostat Replacement Kit
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Wahler - Corporate Logo
    T#:374361
    Part#: N524TSTKT1
    In Stock
    $ 112.99

    This product was last offered at the strikethrough price on
    03-26-2026

    $ 111.99 USD
    Free Shipping
    $ 111.99 USD
    Free Shipping
    Hella Automatic Radiator -- E46 323/325/328/330, MZ4 Manual 6 sp. ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Mahle-Behr - Corporate Logo
    T#:341065
    Part#: 17119071519
    In Stock
    $ 275.99

    This product was last offered at the strikethrough price on
    01-08-2026

    $ 211.99 USD
    Free Shipping
    $ 211.99 USD
    Free Shipping

    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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    Coolant Expansion Tank - E85 E86 Z4
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:7457
    Part#: 17117573751
    In Stock at Vendor
    $ 289.99

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

    $ 281.99 USD
    Free Shipping
    $ 281.99 USD
    Free Shipping
    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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    Genuine BMW Automatic Transmission Thermostat
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:348485
    Part#: 17111437362
    Ships in 1-2 days
    6% 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.

    $ 126.99 USD
    Free Shipping
    6% 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.

    $ 126.99 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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