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Complete Cooling System Hose Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5416786
Part#: 11531436408TMSKT
In Stock
Sale - Save 6% $ 307.99

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

$ 289.82 USD
Free Shipping
Sale - Save 6%
$ 307.99

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

$ 289.82 USD
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The cooling hoses on your BMW are exposed to vast temperature changes, as well as exposure the elements. Over time, they will fail and can cause you to be stranded, or a worse failure. Turner Motorsport has created a kit that includes all of the necessary cooling system hoses as well as a gallon of coolant to correctly service your cooling system. Kit includes: Genuine BMW Antifreeze - 1 Gallon 2 Heater hoses Expansion tank hose Water pipe to expansion tank hose Heater inlet pipe Water pipe Upper radiator hose Lower radiator hose
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Complete Cooling System Hose Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:638920
Part#: 11531436408KT3
In Stock
Sale - Save 18% $ 399.99

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

$ 327.68 USD
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Sale - Save 18%
$ 399.99

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

$ 327.68 USD
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The cooling hoses on your BMW are exposed to vast temperature changes, as well as exposure the elements. Over time, they will fail and can cause you to be stranded, or a worse failure. We have created a kit that includes ECS Tuning silicone radiators hoses and all other necessary cooling system hoses as well as a gallon of coolant to correctly service your cooling system.
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Genuine BMW - Corporate Logo
T#:14120
Part#: 64218363198
In Stock
Sale - Save 21% $ 45.99

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

$ 36.50 USD
Free Shipping on orders $49 and up
Sale - Save 21%
$ 45.99

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

$ 36.50 USD
Free Shipping on orders $49 and up


BMW Hose F Water Valve And Radiator -
This item fits the following BMW Chassis:
E46


Genuine BMW - Corporate Logo
T#:4472
Part#: 11511436590
In Stock
7% 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.

$ 68.99 USD
Limited Qty Sale
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7% 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.

$ 68.99 USD
Limited Qty Sale
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SEE T#337981

Expansion Tank Mounting Plate
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:402140
Part#: 17111436250
In Stock
$ 70.99 USD
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$ 70.99 USD
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Water Pipe
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:594365
Part#: 11537502000
In Stock
$ 39.99 USD
Free Shipping on orders $49 and up
Water pipes are essential for proper cooling. If they are cracked, they are going to need to be replaced as soon as possible to avoid overheating your engine. This water pipe runs from the back of the water pump housing to the expansion tank hose. Includes all required seals, needed for the install.
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Mishimoto - Corporate Logo
T#:51075086
Part#: MMTS-E46-99E
In Stock
New Item
$ 91.99 USD
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The Mishimoto Thermostat Assembly focuses on precision fitment and long-term durability.
Uro - Aluminum Coolant Hose Connector for E9x, and Z4
2X Entries Into Our F80 M3 Sweepstakes
URO Premium - Corporate Logo
T#:37757289
Part#: 11537545890PRMK
In Stock
$ 24.99 USD
Free Shipping on orders $49 and up
Aluminum Connector that replaces the OEM brittle Plastic

Mishimoto - Corporate Logo
T#:384864
Part#: MMRAD-E46-323A
In Stock
$ 539.99 USD
$ 539.99 USD

Discover Mishimoto's solution, perfect for both daily drivers seeking a reliable OEM radiator upgrade and dedicated racers requiring a high-performance racing radiator. This high-quality aluminum radiator serves as a crucial cooling system component, offering larger coolant capacity and increased surface area for superior heat dissipation compared to OEM plastic.

The aluminum construction ensures enhanced durability, backed by Mishimoto's lifetime warranty, potentially making this radiator your last purchase!

Key Features:

  • Fully brazed aluminum core with TIG-welded end tanks
  • Compatible with stock clutch fan or Mishimoto electric fan shroud
  • Precision-designed CNC-machined quick-disconnect fittings for perfect hose compatibility
  • Track-tested design for reliability
  • 18% increase in coolant surface area
  • 41% increase in air surface area
  • 20% increase in coolant capacity

*WARNING: Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) may apply to this product. For more information about California Prop 65 warning, visit www.P65Warnings.ca.gov.*

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URO - Corporate Logo
T#:43750239
Part#: 64218376153
In Stock
$ 29.99 USD
Free Shipping on orders $49 and up
Over the years and with exposure to extremely hot coolant, the coolant hoses in your vehicle can take a beating. Being made of reinforced rubber, these hoses can fail in a number of ways. Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded. Replace it at the first sign of wear to keep your coolant in your engine. With the proper diameter, bends, and lengths, this is the perfect replacement for any swelled or damaged hose. An easy installation, it's piece of mind the next time you are on a long trip or your morning commute.
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Mishimoto - Corporate Logo
T#:19593926
Part#: MMOCULT
In Stock at Vendor
$ 599.99 USD
Free Shipping on orders $49 and up

Enhance your BMW's performance and protect its engine with this high-quality oil cooler kit

Even under ideal driving conditions, elevated oil temperatures can lead to decreased lubrication efficiency and pressure. With this oil cooler, you can maintain optimal oil temperatures for peak driving performance.

Kit Includes:

  • Four feet of stainless braided line for durability
  • Adapter fittings for easy installation
  • Oil filter sandwich adapter for seamless integration

Specifications:

  • 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
  • Includes Thermostat for precise temperature and flow control

*WARNING: This product may be subject to Proposition 65 regulations in California. For more information, visit www.P65Warnings.ca.gov.

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Spal - Corporate Logo
T#:598801
Part#: 30100375
In Stock
$ 99.99 USD
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$ 99.99 USD
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861 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: 13.25in x 12.5in x 2.2in Airflow (CFM): 861
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Temperature Sensor
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:37892090
Part#: 13621433076
In Stock
$ 10.34 USD
Free Shipping on orders $49 and up
Temperature sensor for monitoring coolant and oil
AFE - Corporate Logo
T#:35121163
Part#: 46-53241
Back Ordered
Sale - Save 5% $ 236.00

This product was last offered at the strikethrough price on
09-01-2026

$ 224.20 USD
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Sale - Save 5%
$ 236.00

This product was last offered at the strikethrough price on
09-01-2026

$ 224.20 USD
Free Shipping on orders $49 and up
The aFe POWER BladeRunner OER Series Radiators are engineered as the perfect replacement for worn or damaged stock radiators. Over time, stock radiators lose efficiency due to corrosion and road debris, with aging connectors and joints becoming prone to leaks that can lead to overheating and costly engine damage. Our OER radiators feature an all-aluminum core with molded plastic end tanks, incorporating all necessary mounting points and fittings for quick, easy installation. Keep your engine cool and performing at its best with aFe POWER BladeRunner OER Series Radiators.
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Genuine BMW - Corporate Logo
T#:150726
Part#: 64216902679
Ships in 3 Business Days
3% off MSRP $ 35.99

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

$ 34.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 35.99

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

$ 34.99 USD
Free Shipping on orders $49 and up


Genuine BMW Hose F Water Valve And Radiator
This item fits the following BMW Chassis:
E46 M3,E46


E46 M5x M52 M54Cooling System Refresh Kit - Level 2
For vehicles with production date up to 09/2002
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5498481
Part#: E46M5X2KT
Ships on Oct 16, 2026
Sale - Save 3% $ 474.99

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

$ 460.03 USD
Free Shipping
Sale - Save 3%
$ 474.99

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

$ 460.03 USD
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Prevent cooling issues and take service of your cooling system one step further with a Turner Motorsport Level 2 Cooling System Maintenance Kit. The experts at Turner have identified all of the common parts that fail on a BMW and included them all in this convenient kit. BMW has been designing notoriously failure-prone cooling systems since the late 1980s. The coolant capacity in most BMW engines is not sufficient to accommodate any driving or overheating near red zone temperatures. If the coolant reaches this critical temperature, it is common for thousands of dollars in damage to occur. Stop the problems before they arise. If your BMW has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. Avoid water pump failure, cracked thermostat housings, and expansion tank leaks, which all lead to overheating and subsequent damage. This kit was put together by Turner for a complete cooling system service. GEBA water pump with metal impeller Ecs aluminum water pump pulley Fan switch Thermostat and thermostat housing Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses Accessory drive belts Radiator drain plug
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DO88 - Corporate Logo
T#:13891851
Part#: OC120E46
In Stock
$ 646.99 USD
Free Shipping on orders $49 and up
This racing oil cooler shines in low-pressure situations, for example, power steering oil cooling or gearbox oil cooling. This oil cooler comes ready to install with hardware.
Mishimoto - Corporate Logo
T#:378422
Part#: MMFAN14
In Stock
$ 100.99 USD
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$ 100.99 USD
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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#:367703
Part#: 11537502000
In Stock
2% off MSRP $ 60.99

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

$ 59.99 USD
Free Shipping
2% off MSRP
$ 60.99

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

$ 59.99 USD
Free Shipping
Mishimoto - Corporate Logo
T#:637389
Part#: MMFAN-14C
Ships in 3 Business Days
$ 104.99 USD
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$ 104.99 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 1300 CFM of airflow Universal fitment Compact design with a diameter of 14" and an overall thickness of only 2.65" 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#:381042
Part#: MMOC-19
In Stock
$ 218.99

This product was last offered at the strikethrough price on
05-06-2026

$ 196.99 USD
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$ 196.99 USD
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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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Coolant Expansion Tank - E46 (non-M), X3, X5 3.0
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:338020
Part#: 17117573781
Ships in 1 Business Day
Sale - Save 12% $ 140.99

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

Starting at $ 123.98 USD
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Sale - Save 12%
$ 140.99

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

Starting at $ 123.98 USD
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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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Packaged by Turner - Corporate Logo
T#:557310
Part#: E46NONMPCKT4
Ships on Oct 16, 2026
$ 1,543.99

This product was last offered at the strikethrough price on
06-23-2026

$ 1,525.99 USD
$ 1,525.99 USD

If you plan to drive your BMW aggressively on the track, it is important that you upgrade your cooling system to avoid overheating. To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative! This kit includes a high performance Mishimoto Radiator, for significantly better cooling than the stock radiator and full aluminum construction that won't crack from long term heat cycling, a performance Mishimoto 70*C thermostat, for lower temperature operation and increased cooling of the engine, and a Stewart High Performance Water Pump, for dramatically increased coolant flow at all RPMs. 

Additional items included in this kit:

  • OEM Replacement Coolant Hoses
  • OEM Expansion Tank, Cap, and Level Sensor
  • OEM Belts, Tensioners, and Pulleys
  • OEM Auxiliary Fan Switch
  • Genuine BMW Hardware for Easy Installation
  • ECS Tuning Aluminum Water Pump Pulley - For increased reliability over the stock composite pulley
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Packaged by Turner - Corporate Logo
T#:554552
Part#: 17119071519KT5
Ships on Oct 16, 2026
Sale - Save 6% $ 979.99

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

$ 924.21 USD
Sale - Save 6%
$ 979.99

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

$ 924.21 USD

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E46 with the M52/54 engine.  

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 thermostat housing, radiator, and 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 entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

This cooling system overhaul kit fits the following BMWs: 
1999-2000 E46 3 Series Sedan/Wagon - 323i & 328i 
1999-2000 E46 3 Series Coupe/Convertible - 323Ci & 328Ci 
2001-2002 E46 3 Series Sedan/Wagon - 325i, 325xi, 330i, 330xi 
2001-2002 E46 3 Series Coupe/Convertible - 325Ci, 330Ci 

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High Performance Metal Water Pump & Pulley Kit - M54
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:55749612
Part#: 888010330KT3
In Stock
New Item
$ 299.99 USD
Free Shipping on orders $49 and up
URO Parts Thermostat Assembly - 11537509227
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:29466801
Part#: 11537509227
In Stock
$ 41.99 USD
Free Shipping on orders $49 and up
$ 41.99 USD
Free Shipping on orders $49 and up

The thermostat cover in your BMW, made from plastic, is notorious for failing. After years of exposure to hot coolant, the plastic can crack, leading to significant coolant leaks and potential engine overheating.

URO Parts offers a superior solution with their high-quality thermostat cover, designed to surpass the durability of the original factory part. This replacement thermostat comes complete with a gasket for an effortless service.

Features:

Perfect Fit: Guaranteed fitment ensures a seamless replacement process. Optimal Cooling: High-flow OE-style design ensures efficient engine cooling performance. Easy Installation: Manufactured to factory housing dimensions for straightforward bolt-on installation and secure hose connections. Comprehensive Design: Includes ports for temperature sensors where applicable. Superior Materials: Constructed from high-quality alloy or composite materials that resist temperature-induced warping or cracking, preventing coolant leaks. URO Parts, with over 8,000 premium spare parts, specializes in manufacturing precise, durable replacements for factory BMW components. Committed to the highest standards of precision, materials, and workmanship, each part is rigorously tested to deliver the best combination of durability, functionality, and affordability. For reliable replacement parts that offer great value, choose URO Parts.

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ECS Cooling System Refresh Kit - Level 2
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15677514
Part#: 11281706545-KT
Ships on Oct 16, 2026
Sale - Save 3% $ 474.99

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

$ 460.24 USD
Free Shipping on orders $49 and up
Sale - Save 3%
$ 474.99

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

$ 460.24 USD
Free Shipping on orders $49 and up
Stop the problems before they arise. If your BMW has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. Avoid water pump failure, cracked thermostat housings, and expansion tank leaks, which all lead to overheating and subsequent damage. This kit was put together by Turner for a complete cooling system service. GEBA water pump with metal impeller ECS aluminum water pump pulley Fan switch Thermostat and thermostat housing Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses Accessory drive belts Radiator drain plug
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ECS Cooling System Refresh Kit - Level 1
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15744010
Part#: ECSE4617111KT
Ships in 4 Business Days
Sale - Save 8% $ 438.99

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

$ 401.84 USD
Free Shipping on orders $49 and up
Sale - Save 8%
$ 438.99

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

$ 401.84 USD
Free Shipping on orders $49 and up
BMW has been designing notoriously failure-prone cooling systems since the late 1980s. The coolant capacity in most BMW engines is not sufficient to accommodate any driving or overheating near red zone temperatures. After the gauge reaches this critical area, it is common for thousands of dollars in damage to occur. Stop the problems before they arise. If you vehicle has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. To keep everything in top order, continue to replace these components at 80,000 mile intervals. Water pump failure, cracked plastic housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. Water pump with metal impeller ECS Aluminum water pump pulley Fan switch Thermostat and thermostat housing Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses
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ECS Cooling System Refresh Kit - Level 1
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15677493
Part#: 11517527910-KT
Ships in 4 Business Days
Sale - Save 4% $ 336.99

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

$ 324.43 USD
Free Shipping on orders $49 and up
Sale - Save 4%
$ 336.99

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

$ 324.43 USD
Free Shipping on orders $49 and up
Stop the problems before they arise. If you vehicle has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. To keep everything in top order, continue to replace these components at 80,000 mile intervals. Water pump failure, cracked plastic housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. This kit was put together by Turner including the basic parts that need replaced. Water pump with metal impeller Fan switch Thermostat and thermostat housing Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses
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Genuine BMW - Corporate Logo
T#:369664
Part#: ECSE461711-1
Ships in 5 Business Days
$ 848.99 USD
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$ 848.99 USD
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BMW E46 M3 Oil Line -10 AN Adapter Fitting Kit
2X Entries Into Our F80 M3 Sweepstakes
CSF - Corporate Logo
T#:31158758
Part#: 8241
Ships in 4 Business Days
$ 89.00 USD
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$ 89.00 USD
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BMW Oil Line -10 AN Adapter Fitting Kit is designed for optimal performance with both oil cooler and thermostat housing setups. This comprehensive kit from Turner Motorsport provides everything needed for a secure and reliable connection.

Each fitting kit includes:

  • Qty. 2 - Aluminum -10 AN to ORB Fittings
  • Qty. 2 - O-Rings
  • Qty. 1 - Aluminum Fitting Bracket
  • Qty. 1 - M8 Mounting Bolt

Note: If using a -10 AN connection on the thermostat housing side, a second fitting kit is required.

Benefits:

  • Enhances connection reliability for oil cooler and thermostat housing
  • High-quality aluminum fittings ensure durability and performance
  • Includes all necessary components for easy installation
  • Compatible with CSF #8240 (BMW S54 Swap Race Spec Oil Cooler) and CSF #8032 (BMW E46 M3/S54 Race-Spec Oil Cooler)
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Spal - Corporate Logo
T#:598797
Part#: 30102029
In Stock
$ 207.99 USD
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$ 207.99 USD
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1328 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: 13.25in x 12.5in x 3.5n Airflow (CFM): 1328
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Genuine BMW - Corporate Logo
T#:55209926
Part#: 0071199KT
In Stock
New Item
$ 8.59 USD
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This Genuine BMW water pump installation hardware kit is the exact factory refresh package needed to maintain the structural integrity of your cooling system's plumbing.

Febi Freeze Plug - 11111714712
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:6570
Part#: 11111714712
In Stock
$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.03 USD
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$ 2.03 USD
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ENGINE COVER LID 11111714712
Advanced Auto Fabrication - Corporate Logo
T#:7624632
Part#: 116211.2
Ships in 2 Business Days
$ 85.00 USD
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$ 85.00 USD
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BMW E46 M54 AAF Low Temp Thermostat Kit - Partial is an essential upgrade for enthusiasts looking to optimize engine performance and reliability. Developed by Advanced Auto Fabrication (AAF), this kit addresses the limitations of the factory M54 thermostat, which maintains a temperature range of 80-103°C and opens the mechanical failsafe at 110°C. For race conditions where maintaining a lower temperature is crucial, this kit replaces the stock electronic thermostat with a manual unit, allowing the engine to run at a safer and more efficient temperature. This upgrade not only enhances engine longevity but also reduces stress from high-temperature operation, minimizes heat soak, and increases power.

  • Optimal Temperature Control: Replaces the factory thermostat for improved engine temperature management.
  • Enhanced Engine Longevity: Operates at safer temperatures, reducing stress and extending engine life.
  • Increased Power: Lower operating temperatures can lead to better engine performance.
  • Reduced Heat Soak: Helps prevent overheating and ensures efficient cooling.
  • Improved Reliability: Manual thermostat unit offers more consistent performance in racing conditions.

Partial Kit Contents:

  • Thermostat housing plate
  • Thermostat
  • Installation hardware
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Race German - Corporate Logo
T#:6827887
Part#: RGCTSAM12
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 M12x1.5 sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor
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Spal - Corporate Logo
T#:598910
Part#: 30130013
In Stock at Vendor
$ 6.99 USD
Free Shipping on orders $49 and up
Wire pin used to mount electric fan directly to radiator.
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
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$ 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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Genuine BMW - Corporate Logo
T#:12482
Part#: 17112229053
In Stock
1% off MSRP $ 96.35

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

$ 95.28 USD
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1% off MSRP
$ 96.35

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

$ 95.28 USD
Free Shipping
This is the Genuine BMW coolant reservoir / expansion tank vent hose for E46 M3 with the S54 engine.

This item fits the following BMWs:
2001-2006 E46 BMW M3

Water Pump O-Ring
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URO - Corporate Logo
T#:555320
Part#: 11537830709
In Stock
$ 2.99 USD
Free Shipping on orders $49 and up
When it comes time to replace the water pump, be sure to replace all the O-Rings associated with it to ensure that your car stays leak free. If you are experiencing leaking issues, be sure to inspect these rings, as they might have worn down. This is used on the return pipe to the thermostat housing
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Advanced Auto Fabrication - Corporate Logo
T#:7624630
Part#: 116211
In Stock at Vendor
$ 175.00 USD
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$ 175.00 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. The factory M54 thermostat is electronically controlled to keep the engine running between 80-103°C, whereas race cars like to maintain 80°C or less for maximum power. Additionally, the mechanical failsafe doesn’t open up until the coolant temperature reaches 110°C, or 230°F, which is about the point when most race cars are turned off and parked which is no good for the motor! The AAF E46 M54 Low Temp Thermostat Kit is designed to give the control of proper engine operating temperature back by replacing the stock electronic thermostat with a manual unit. This allows the engine to run at the proper, and much safer, operating temperature, improving engine longevity, reduces stress from high-temp. operation, reduces heat soak, and increases power! Full Kit Contents: Thermostat housing Thermostat housing plate Thermostat install hardware sealant
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URO Thermostat Housing Gasket - BMW M52TU M54
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URO - Corporate Logo
T#:639269
Part#: 11537509357
In Stock
$ 2.99 USD
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Prevent leaks with a brand new thermostat housing gasket from URO

Mishimoto - Corporate Logo
T#:640347
Part#: MMTS-E46-99V2
Ships in 4 Business Days
$ 135.99 USD
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$ 135.99 USD
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Advanced Auto Fabrication - Corporate Logo
T#:7608839
Part#: 11641
In Stock at Vendor
$ 189.00 USD
Free Shipping on orders $49 and up

BMW E46 AAF Aluminum Radiator Mounting Kit provides a robust solution for mounting an aluminum radiator into the BMW E46 chassis without relying on the stock plastic mounts. Developed by Advanced Auto Fabrication, a company renowned for their expertise in producing high-performance race car components, this kit reflects their extensive knowledge and dedication to BMW race car design.

The mounting kit is designed to replace the stock mounting system and is compatible with lightweight aftermarket fans, as the stock electric fan cannot be used. Please note that this kit does not fit M3 models.

  • Durable Construction: Made from high-quality aluminum for strength and longevity.
  • Enhanced Cooling Efficiency: Allows for the use of aftermarket fans for improved cooling performance.
  • Race-Ready Design: Reflects Advanced Auto Fabrication's expertise in BMW race car components.
  • No Stock Plastic Mounts: Provides a more reliable and robust mounting solution than the factory system.
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BMW E46 M3 S54 3.2L Water Pump
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:378573
Part#: 11517838159
Ships in 2 Business Days
$ 105.79 USD
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$ 105.79 USD
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Includes sealing gaskets

Condor Speed Shop - Corporate Logo
T#:577556
Part#: SPALM
Ships in 5 Business Days
$ 66.99 USD
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$ 66.99 USD
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Stainless steel brackets for mounting a 16" SPAL fan on an OEM or aftermarket BMW radiator. The fan can be mounted on either side of the radiator. All mounting hardware is included. Fitment: e30, E36, E46
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Moroso - Corporate Logo
T#:568945
Part#: 63793
In Stock at Vendor
$ 433.99 USD
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$ 433.99 USD
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If you have ever experienced a leaking plastic BMW expansion tank you will realize the value of this aluminum version straight away. Even if a failure has not happened to you, it's easy to tell this tank is much stronger and more durable than the plastic used in the stock design. The original BMW plastic tanks suffer from leaks and failures with no warning. While being lightweight and recyclable, the design and construction of the stock tank is just not up for reliable long-term use. Moroso coolant expansion tanks are all pressure tested for guaranteed leak-free operation. Features: Direct bolt-in replacement to stock, cracked, or discolored tanks Fabricated Aluminum for strength, factory tanks fail after repeated high heat situations & age No cutting of factory hoses is required and accepts the factory clip-on hose Included is a Moroso Part No. 63324 racing radiator cap that operates in the same pressure range as the factory cap The Moroso radiator cap mounts to a billet aluminum neck that will not strip out like plastic threaded necks Easy to read slight level is included
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Spal - Corporate Logo
T#:598821
Part#: 30101516
Ships in 3 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#:1219
Part#: 17119071518
Ships in 2 Business Days
$ 249.99 USD
$ 249.99 USD
This is a BEHR 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. Don't pay the inflated list price from the dealer when you can save big, while still getting the highest quality radiator available for 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.​

This radiator fits the follow BMWs: :
Only for Manual Transmission
1999-5/2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi - Not for cars with M56 engine

2003-2006 E85 BMW Z4 2.5i Z4 3.0i - M54 engine
2006-2008 E85 BMW Z4 M Roadster M Coupe
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Coolant Expansion Tank - E53 E46 E83 M52 M54
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URO - Corporate Logo
T#:373103
Part#: 17137787039
Ships in 2 Business Days
$ 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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