BMW Cooling System Parts & Accessories for BMW X Series E53 (2000-2006)

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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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Genuine BMW - Corporate Logo
T#:360689
Part#: 11537509227
Ships in 1-2 days
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
Free Shipping
Genuine BMW - Corporate Logo
T#:1030
Part#: 11517509985
Ships in 1-3 days
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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Mahle-Behr - Corporate Logo
T#:1735
Part#: 17117573781
In Stock at Vendor
$ 100.99

This product was last offered at the strikethrough price on
04-01-2026

$ 96.99 USD
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$ 96.99 USD
Free Shipping on orders $49 and up
This coolant reservoir is for the non-M E46 3-series models from 1999-2006 (M3 takes a different expansion tank). 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. This is the most recent expansion tank design from Hella-Behr, the OEM supplier to BMW. It replaces the original BMW part number 17137787039.

Other items to consider replacing at the same time are the radiator cap, coolant level sensor, lower radiator hose, coolant temp sensor in the lower hose, and the hose clamps. If your car has an automatic transmission you should also replace the oil cooler thermostat in the radiator frame, which is a common source for leaks.

This coolant expansion tank fits:

1999-2006 E46 3 series - 323i, 323Ci, 325i, 325Ci, 325xi, 328i, 328Ci, 330i, 330Ci & 330xi (**no M)
2004-2008 X3 SAV - X3 2.5, X3 3.0, X3 3.0si
2000-2005 X5 SAV - X5 3.0
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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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Race German - Corporate Logo
T#:6827888
Part#: RGCTSA1/8NPT
In Stock
$ 35.99 USD
Free Shipping on orders $49 and up
Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for 1/8NPT sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor
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Schwaben - Corporate Logo
T#:377131
Part#: 004170SCH01A
In Stock
Sale - Save 55% $ 63.99

This product was last offered at the strikethrough price on
05-02-2026

$ 28.79 USD
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Sale - Save 55%
$ 63.99

This product was last offered at the strikethrough price on
05-02-2026

$ 28.79 USD
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These pliers feature a spring loaded clamp with a 24" cable and will lock onto the clamp and hold open for easy removal. These pliers are designed to remove metal or plastic self-tightening hose clamps with diameters from 11/16" to 2-1/2" ( 18 to 54mm).
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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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Bav Auto Tools - Corporate Logo
T#:580358
Part#: B8800031
In Stock
Sale - Save 15% $ 23.99

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

$ 20.39 USD
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Sale - Save 15%
$ 23.99

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

$ 20.39 USD
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Used to remove your fan clutch

Wahler - Corporate Logo
T#:369356
Part#: 11537586885
In Stock
$ 72.99 USD
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Includes housing and sealing o-ring

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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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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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


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
Free Shipping
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
Free Shipping
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
$ 103.81 USD
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$ 103.81 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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Schwaben - Corporate Logo
T#:379950
Part#: 009787SCH01A
In Stock
Sale - Save 15% $ 39.99

This product was last offered at the strikethrough price on
05-02-2026

$ 33.99 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 39.99

This product was last offered at the strikethrough price on
05-02-2026

$ 33.99 USD
Free Shipping on orders $49 and up

Schwaben Locking Hose Pinch-Off Pliers have adequate clamping force to effectively seal large or pressurized cooling system hoses. These pliers are ideal for clamping shut most hoses, ensuring reliability in your automotive tasks. With swivel jaws, they provide even clamping force, making them a versatile tool for various applications.

  • Adequate clamping force for large or pressurized hoses
  • Ideal for clamping shut most hoses
  • Swivel jaws ensure even clamping force
  • Versatile tool for automotive maintenance

WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. For more information, visit http://www.p65warnings.ca.gov.

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BMW Water Pump - Remanufactured - 11517527799
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
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

ECS - Corporate Logo
T#:380416
Part#: 003402ECS07A-03
In Stock
Sale - Save 25% $ 31.99

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

$ 23.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 31.99

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

$ 23.99 USD
Free Shipping on orders $49 and up

Ensure a tight and leak-free seal in your BMW's cooling, vacuum, or intake systems by installing a new adjustable hose clamp. Over time, clamps can deform or lose their tightness due to aging or frequent removal, potentially causing leaks in your coolant or vacuum hoses. Avoid the risk of leaks by replacing old clamps with new hardware, offering peace of mind against coolant and vacuum system issues.

Key benefits of the adjustable hose clamp include:

  • Maintaining a secure and leak-free seal in your BMW's systems.
  • Preventing coolant or vacuum leaks that can affect performance.
  • Adjustable size from 70mm to 78mm for versatile applications.

Upgrade your hose clamps to ensure optimal performance and reliability in your BMW's systems.

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Mishimoto - Corporate Logo
T#:640347
Part#: MMTS-E46-99V2
In Stock at Vendor
$ 135.99 USD
Free Shipping
$ 135.99 USD
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Mahle-Behr - Corporate Logo
T#:341080
Part#: 11531436386
In Stock at Vendor
$ 173.99 USD
Free Shipping
$ 173.99 USD
Free Shipping
Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. The sensor on the housing is also used by the engine computer to set the fuel mapping on the engine. A faulty sensor or thermostat will lead to the engine running rich (too much fuel). This thermostat fits BMW E39 540i 99-03 E38 740i 99-01 X5 4.4i 4.6is 99-2003 with M62 engine.

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.

This item fits the following BMWs:
1999-2001  E38 BMW  740i 740il
1999-2003  E39 BMW  540i
1999-2003  E53 BMW  X5 4.4i X5 4.6is
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Genuine BMW - Corporate Logo
T#:2255
Part#: 11537586885
Ships in 3 Business Days
8% off MSRP $ 135.99

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

$ 124.99 USD
Free Shipping
8% off MSRP
$ 135.99

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

$ 124.99 USD
Free Shipping
Don't take chances! Proper maintenance is required to keep your car performing at peak levels. The thermostat basically controls when your car will overheat. Don't let it fail on you.

Schwaben - Corporate Logo
T#:391482
Part#: 014710SCH01A
Ships in 8 Business Days
Sale - Save 25% $ 205.99

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

$ 154.49 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 205.99

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

$ 154.49 USD
Free Shipping on orders $49 and up
Are you refreshing your coolant system or having issues with coolant loss? An easy way to test your system for leaks and ensure you're able to maintain pressure without coolant loss is the Schwaben Cooling System Pressure Tester Kit.
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Mishimoto - Corporate Logo
T#:51075091
Part#: MMWP-M50-92
In Stock
New Item
$ 72.99 USD
Free Shipping on orders $49 and up
The Mishimoto Performance Water Pump provides the thermal stability required for modified engines.
Mishimoto - Corporate Logo
T#:29002063
Part#: MMOC10
In Stock
$ 126.99 USD
Free Shipping on orders $49 and up

BMW & MINI Universal Oil Cooler - 10 Row is a versatile cooling solution designed to enhance the performance and reliability of BMW and MINI vehicles. This high-quality oil cooler provides efficient cooling for the engine oil, ensuring optimal operating temperatures and extending the life of vital engine components.

Crafted with precision engineering and durable materials, the BMW & MINI Universal Oil Cooler - 10 Row is compatible with a wide range of BMW and MINI models, offering versatility and ease of installation. It effectively dissipates heat from the engine oil, reducing the risk of overheating and engine damage.

  • Enhances performance and reliability of BMW and MINI vehicles
  • Efficient cooling for engine oil, ensuring optimal operating temperatures
  • Extends the life of vital engine components
  • Compatible with a wide range of BMW and MINI models
  • Versatile and easy to install
  • Crafted with precision engineering and durable materials

Investing in the BMW & MINI Universal Oil Cooler - 10 Row is a smart choice for BMW and MINI owners looking to improve their vehicle's performance and longevity.

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CSF OE Style Radiator - E53 X5 M54 3.0L
2X Entries For Our G87 M2 Sweepstakes!
CSF - Corporate Logo
T#:554016
Part#: 3179
In Stock
$ 120.99 USD
Free Shipping
$ 120.99 USD
Free Shipping
CSF radiators are designed and built to High-Performance Standards & sold worldwide for over 50 years - over 30 Million Units Sold! CSF's radiators are carefully engineered and Wind Tunnel tested for Cooling Performance Validation. CSF has over 10,000 different models of radiators that they manufacture and supply for all the leading brands of vehicles on the road.
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Hudson - Corporate Logo
T#:46203522
Part#: 11531741202
In Stock
$ 31.99 USD
Free Shipping on orders $49 and up
Mishimoto - Corporate Logo
T#:31291020
Part#: MMOC10BK
In Stock
$ 126.99 USD
Free Shipping on orders $49 and up

Universal Oil Cooler Black - 10 Row is engineered to maintain optimal oil temperatures and ensure peak engine performance under various driving conditions. This high-performance oil cooler effectively reduces oil temperatures, preventing a drop in pressure and maintaining proper engine lubrication. Featuring a robust 10-row design, it offers superior cooling efficiency compared to standard coolers.

  • Efficient Cooling: The 10-row design enhances cooling capacity to manage high oil temperatures effectively.
  • Durable Construction: Black finish provides durability and resistance to environmental factors.
  • Optimized Performance: Helps prevent a drop in oil pressure and maintains proper engine lubrication.
  • Versatile Fitment: Universal design suitable for various vehicles and applications.
  • Compact Size: Overall dimensions of 12.95" x 3.8" x 1.97" and core dimensions of 11" x 2.76" x 1.97" ensure a good fit in most engine bays.

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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Saleri - Corporate Logo
T#:581204
Part#: PA659
Ships in 1 Business Day
$ 60.99 USD
Free Shipping on orders $49 and up

Bremmen Parts - Corporate Logo
T#:3018052
Part#: 64116910544
In Stock
Sale - Save 20% $ 85.99

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

$ 68.54 USD
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Sale - Save 20%
$ 85.99

This product was last offered at the strikethrough price on
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$ 68.54 USD
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Keep your HVAC system running properly with a new Water Heater Control Valve.

Schwaben - Corporate Logo
T#:378938
Part#: 007701SCH01A
In Stock
Sale - Save 25% $ 42.99

This product was last offered at the strikethrough price on
05-02-2026

$ 32.24 USD
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Sale - Save 25%
$ 42.99

This product was last offered at the strikethrough price on
05-02-2026

$ 32.24 USD
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This tool was specifically designed for the tight clearances needed to remove most BMW fan clutches. Its slim design lets it fit into tight areas, and the extra-long length is ideal for fan shroud clearance. 
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Rein Coolant Expansion Tank - E46, E53, E83
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:402141
Part#: 17117573781
In Stock
$ 76.39 USD
Free Shipping
$ 76.39 USD
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Includes cap and level sensor

URO - Heater Inlet Pipe - E46, Z3, E39
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:34080697
Part#: 11531705210
Ships in 1 Business Day
$ 34.49 USD
Free Shipping on orders $49 and up
This runs from the front left side of the cylinder head under the intake manifold toward the firewall.
Redline - Corporate Logo
T#:640436
Part#: 81215
Ships on Aug 17, 2026
$ 54.99 USD
Free Shipping on orders $49 and up
Red Line SuperCool Performance Coolant fortified with WaterWetter is a 50/50 prediluted antifreeze/coolant designed to maximize the performance of your cooling system with superior protection against cavitation corrosion/erosion. Using 100% SuperCool Performance 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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OEM Behr Radiator - Automatic - E53 X5 3.0i M54
For vehicles with automatic transmission only
For vehicles with automatic transmission only
Mahle-Behr - Corporate Logo
T#:11932
Part#: 17107544668
In Stock
$ 352.99 USD
$ 352.99 USD
OEM BEHR brand replacement radiator for all 2000-2006 E53 X5 3.0i with Automatic Transmission. This radiator is made by BEHR, an original equipment (OE) supplier to BMW. This is the brand we use exclusively on our own X5's, and think you should as well. 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. This item fits the following BMWs: 2000-2006 E53 BMW X5 3.0i
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Coolant Expansion Tank - E53 E46 E83 M52 M54
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:373103
Part#: 17137787039
Ships in 1 Business Day
$ 45.99 USD
Free Shipping on orders $49 and up
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.
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Spal - Corporate Logo
T#:25507142
Part#: SPL185TS
Back Ordered
$ 44.99 USD
Free Shipping on orders $49 and up
This part replaces faulty thermo-switches found in Spal electric fan conversion kits.
Genuine BMW - Corporate Logo
T#:348485
Part#: 17111437362
Ships in 3 Business Days
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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Hepu - Corporate Logo
T#:393249
Part#: 11510393336
Ships in 1 day
$ 140.18 USD
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$ 140.18 USD
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Prevent cooling system failure. New - not remanufactured!
OEM Febi Auxiliary Fan Switch
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:340712
Part#: 13621433077
Ships on Oct 14, 2026
$ 29.99 USD
Free Shipping on orders $49 and up
$ 29.99 USD
Free Shipping on orders $49 and up
The auxiliary fan switch activates the auxiliary cooling fan to provide additional cooling under high heat loads, and when the car is stationary.
Schwaben - Corporate Logo
T#:375872
Part#: 001170SCH01AKT
In Stock
Sale - Save 25% $ 65.99

This product was last offered at the strikethrough price on
05-02-2026

$ 49.49 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 65.99

This product was last offered at the strikethrough price on
05-02-2026

$ 49.49 USD
Free Shipping on orders $49 and up
Replacing the fan clutch on most BMW models requires holding the water pump pulley while removing the fan clutch lock nut. With less than 1 1/2" clearance on some models this project can easily turn into a mechanical nightmare. Using our special slim line fan clutch wrench in conjunction with the appropriate pulley spanner, the removal and installation required only a few moments.
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Geba - Corporate Logo
T#:341091
Part#: 11510393336
In Stock
$ 99.99 USD
Free Shipping
$ 99.99 USD
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Prevent cooling system failure today and replace your water pump!

Spal - Corporate Logo
T#:376582
Part#: 30102049
In Stock
$ 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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Uro Premium Aluminum Water Pipe - E46 E53 E83 M54 xDrive
2X Entries For Our G87 M2 Sweepstakes!
URO Premium - Corporate Logo
T#:380523
Part#: 11537502000
In Stock
$ 82.99

This product was last offered at the strikethrough price on
04-28-2026

$ 70.99 USD
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$ 70.99 USD
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The stock plastic water pipe is prone to cracking after a long life of heating and cooling cycles. This could lead to coolant loss and an overheating engine. To prevent this, the URO Premium water pipe is constructed from aluminum that can withstand as many heating and cooling cycles that could ever be thrown at it and won't crack or become brittle over time.

Fits the following BMWs:
2000-2005 E46 BMW M54 xi models
2000-2006 E53 BMW X5 M54 xi/xDrive models
2004-2006 E83 BMW X3 M54 xi/xDrive models

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Genuine BMW - Corporate Logo
T#:374557
Part#: 17117573781OEKT
Ships in 3 Business Days
$ 273.99 USD
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$ 273.99 USD
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The expansion tank in your BMW is a vital component of the cooling system, and because of the constant abuse from heat and temperature changes, it often fails. This kit contains all of the basic items needed for a tank replacement.
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Spal - Corporate Logo
T#:598861
Part#: 30100385
In Stock at Vendor
15% off MSRP $ 130.99

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

$ 111.99 USD
Free Shipping on orders $49 and up
15% off MSRP
$ 130.99

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

$ 111.99 USD
Free Shipping on orders $49 and up
1038 CFM. High performance puller fan with curved 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: 15.2in x 14.5in x 2.2in Airflow (CFM): 1038
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Coolant Expansion Tank
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:377303
Part#: 17107514964
Ships in 1 Business Day
$ 52.30 USD
Free Shipping on orders $49 and up
The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break.
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Spal - Corporate Logo
T#:583649
Part#: 30102048
In Stock
$ 207.99 USD
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$ 207.99 USD
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Universal fan that allows increased cooling capacity and shroudless design. 1959 CFM.
OEM Rein Lower Radiator Hose - E53 X5 3.0i 2000-2006
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:362444
Part#: 11537508688
Ships in 1 Business Day
$ 35.99 USD
Free Shipping on orders $49 and up
This lower radiator cooling hose connects the passenger's side bottom of the radiator to the thermostat housing on X5 3.0i with the M54 engine.

This item fits the following BMWs:
2000-2006  E53 BMW  X5 3.0i M54
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Mishimoto - Corporate Logo
T#:1256484
Part#: MMOCULTBK
Ships in 3 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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Genuine BMW - Corporate Logo
T#:360668
Part#: 11531436386
In Stock
Sale - Save 5% $ 192.99

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

$ 182.87 USD
Free Shipping
Sale - Save 5%
$ 192.99

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

$ 182.87 USD
Free Shipping

Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. The sensor on the housing is also used by the engine computer to set the fuel mapping on the engine. A faulty sensor or thermostat will lead to the engine running rich (too much fuel). This thermostat fits BMW E39 540i 99-03 E38 740i 99-01 X5 4.4i 4.6is 99-2003 with M62 engine. 

This item fits the following BMWs: 
1999-2001  E38 BMW  740i 740il 
1999-2003  E39 BMW  540i 
1999-2003  E53 BMW  X5 4.4i X5 4.6is

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Mahle-Behr - Corporate Logo
T#:2765
Part#: 17107514964
Ships in 1 day
$ 121.36 USD
Free Shipping on orders $49 and up

This radiator expansion tank is used on E53 X5 4.4i and 4.6is with M62 engine, and Z3 2.3 2.5i 2.8 3.0i from 1999-2002. It is a common failure item as the plastic weakens over time and stress cracks will lead to coolant leaks. 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. This is the OEM Behr part - not an aftermarket. We have found that the aftermarket coolant reservoirs fail easier than the OEM Behr part. 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.

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.

This item fits the following BMWs:
2000-2003 X5 BMW X5 4.4i X5 4.6is
1999-2002 Z3 BMW Z3 2.3 2.5i 2.8 3.0i

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