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BMW Cooling System Parts & Accessories

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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AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G20/ G21 M340i 3-Series Sedan/ Wagon
AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G20/ G21 M340i 3-Ser...
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AUTOTECKNIC - Corporate Logo
T#:14386749
Part#: BM-0004-M340I
Ships in 8 Business Days
$ 299.00 USD
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$ 299.00 USD
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The AutoTecknic Dry Carbon Cooling Plate will provide your car with better air induction, providing the intake and engine with cooler air during high-speed driving; some customers have even reported better gas mileage and power gains.
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AutoTecknic Dry Carbon Charge Cooler Tank Cap Cover - Gloss Finish
AutoTecknic Dry Carbon Charge Cooler Tank Cap Cover - Gloss Finish ...
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AUTOTECKNIC - Corporate Logo
T#:39971051
Part#: BM-0032
In Stock
$ 64.99 USD
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$ 64.99 USD
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A premium dry carbon fiber engine bay upgrade that enhances the performance styling of compatible BMW models with a sleek, UV-resistant finish and easy OEM-style installation.
Behr Radiator - E36
Behr Radiator - E36
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Behr - Corporate Logo
T#:1196128
Part#: 17111723784
In Stock at Vendor
$ 298.35 USD
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$ 298.35 USD
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Brand new radiator equivalent to OE
AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G42/ G43 230i 2-Series Coupe/ Cabrio
AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G42/ G43 230i 2-Seri...
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AUTOTECKNIC - Corporate Logo
T#:14386739
Part#: BM-0004-230I
Ships in 8 Business Days
$ 295.00 USD
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$ 295.00 USD
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The AutoTecknic Dry Carbon Cooling Plate will provide your car with better air induction, providing the intake and engine with cooler air during high-speed driving; some customers have even reported better gas mileage and power gains.
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Hella Radiator - Manual - E34
Hella Radiator - Manual - E34
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Behr - Corporate Logo
T#:363371
Part#: 17111737760
In Stock at Vendor
$ 687.60 USD
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$ 687.60 USD
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Replace your leaking radiator
AutoTecknic Dry Carbon Coolant Expansion Tank Cap Cover - Gloss Carbon
AutoTecknic Dry Carbon Coolant Expansion Tank Cap Cover - Gloss Carbo...
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AUTOTECKNIC - Corporate Logo
T#:39497984
Part#: BM-0803-GC
Ships in 8 Business Days
$ 74.99 USD
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$ 74.99 USD
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Turner Motorsport offers the AutoTecknic Dry Carbon Coolant Expansion Tank Cap Cover - Gloss Carbon as the perfect addition for BMW owners looking to elevate their engine bay’s appearance with premium materials and precision engineering.
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AUTOTECKNIC Dry Carbon Fiber Cooling Shroud - G87 M2
AUTOTECKNIC Dry Carbon Fiber Cooling Shroud - G87 M2
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AUTOTECKNIC - Corporate Logo
T#:21045537
Part#: ATK-BM-0701-G87
Ships in 8 Business Days
$ 550.00 USD
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$ 550.00 USD
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AutoTecknic's Dry Carbon Cooling Plate provides the G87 with better air induction while providing the intake and engine with cooler air during high-speed driving. It also gives your engine bay a fresh appearance. This shroud is made from high quality dry carbon fiber and is sure to stand the test of time!
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AutoTecknic Dry Carbon Fiber Cooling Shroud - G80 M3 | G82/ G83 M4
AutoTecknic Dry Carbon Fiber Cooling Shroud - G80 M3 | G82/ G83 M4 ...
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AUTOTECKNIC - Corporate Logo
T#:39497957
Part#: BM-0701-M
Ships in 8 Business Days
$ 549.99 USD
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$ 549.99 USD
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Turner Motorsport offers this premium AutoTecknic Dry Carbon Fiber Cooling Shroud, ensuring BMW enthusiasts get a top-quality upgrade for their vehicle. Whether for daily driving or intense track days, this cooling shroud is engineered to deliver maximum efficiency and an unmistakable carbon fiber style.
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AUTOTECKNIC Dry Carbon Cooling Shroud - G22/ G26
AUTOTECKNIC Dry Carbon Cooling Shroud - G22/ G26
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AUTOTECKNIC - Corporate Logo
T#:21176932
Part#: ATK-BM-0004-M440
Ships in 8 Business Days
$ 295.00 USD
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$ 295.00 USD
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Quench your carbon thirst! AutoTecknic's Dry Carbon Cooling Plate provides the G87 with better air induction while providing the intake and engine with cooler air during high-speed driving. It also gives your engine bay a fresh appearance. Made from dry carbon this shroud is durable and can stand strong in any driving environment. Dry carbon is the highest-quality version of carbon fiber products that are produced. Dry carbon fiber's name comes from its manufacturing process. Dry carbon fiber is formed by using a "pre-preg" or impregnated piece of carbon materials. This piece of carbon is first placed into a mold and then into a sealed vacuum (autoclave) to properly cure. This method creates the least amount of waste and forms a lighter version of carbon than the "wet" method. The autoclave vacuuming process of making dry carbon means fewer pinholes and virtually no air pockets in the carbon. Some customers have even reported better gas mileage and power gains. This is a no-brainer! get yours today!
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AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G22/ G23/ G26 M440i 4-Series Coupe/ Cabrio/ Gran Coupe
AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G22/ G23/ G26 M440i ...
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AUTOTECKNIC - Corporate Logo
T#:14386750
Part#: BM-0004-M440I
Ships in 8 Business Days
$ 395.00 USD
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$ 395.00 USD
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The AutoTecknic Dry Carbon Cooling Plate will provide your car with better air induction, providing the intake and engine with cooler air during high-speed driving; some customers have even reported better gas mileage and power gains.
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Radiator
Radiator
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Behr - Corporate Logo
T#:591360
Part#: 17111728905
Back Ordered
$ 399.99

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

$ 388.99 USD
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$ 388.99 USD
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Behr Replacement Radiator - More than likely, you are going to replace the radiator in your vehicle at least once. The joints where the cores meet the end tanks tend to get weak and are the first place to spring a leak. Impacts to the fins themselves can cause holes to form. Corrosion and clogging from the inside can make cooling less than effective and compromise coolant flow.
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AUTOTECKNIC Dry Carbon Fiber Cooling Shroud - G42 2-SERIES
AUTOTECKNIC Dry Carbon Fiber Cooling Shroud - G42 2-SERIES
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AUTOTECKNIC - Corporate Logo
T#:21078397
Part#: ATK-BM-0004-M240
Ships in 8 Business Days
$ 395.00 USD
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$ 395.00 USD
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AutoTecknic's Dry Carbon Cooling Plate provides the G87 with better air induction while providing the intake and engine with cooler air during high-speed driving. It also gives your engine bay a fresh appearance.
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Autotecknic Dry Carbon Fiber Cooling Shroud - G20 340i
Autotecknic Dry Carbon Fiber Cooling Shroud - G20 340i
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AUTOTECKNIC - Corporate Logo
T#:21209849
Part#: ATK-BM-0004-M340
Ships in 8 Business Days
$ 395.00 USD
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$ 395.00 USD
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Carbon fiber is a staple in the performance world and has been incorporated into motorsports since the early 80s. Over time companies have taken it upon themselves to create new carbon products to add to your car that may have not been originally available. Autotecknic is no different. If you're looking for a carbon addition that has been made to the highest standards with premium materials, then Autotecknic's line of carbon additions is your one-stop shop. Made from dry carbon this shroud is durable and can stand strong in any driving environment. Dry carbon is the highest-quality version of carbon fiber products that are produced. Dry carbon fiber's name comes from its manufacturing process. Dry carbon fiber is formed by using a "pre-preg" or impregnated piece of carbon materials. This piece of carbon is first placed into a mold and then into a sealed vacuum (autoclave) to properly cure. This method creates the least amount of waste and forms a lighter version of carbon than the "wet" method. The autoclave vacuuming process of making dry carbon means fewer pinholes and virtually no air pockets in the carbon. Some customers have even reported better gas mileage and power gains.
Show More Show Less
AutoTecknic Dry Carbon Fiber Cooling Shroud - G80 M3 | G82/ G83 M4
AutoTecknic Dry Carbon Fiber Cooling Shroud - G80 M3 | G82/ G83 M4 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
AUTOTECKNIC - Corporate Logo
T#:14419861
Part#: BM-0701
Special Order: No Guaranteed ETA
$ 550.00 USD
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$ 550.00 USD
Add to Wish List
The AutoTecknic Dry Carbon Cooling shroud will provide your car with better air induction, providing the intake and engine with cooler air during high-speed driving; some customers have even reported better gas mileage and power gains.
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Behr Radiator - E60, E61, E63, E64
Behr Radiator - E60, E61, E63, E64
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Behr - Corporate Logo
T#:579569
Part#: 376755591
Back Ordered
$ 267.99 USD
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$ 267.99 USD
Add to Wish List
Replace your leaking radiator
AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G42/ G43 M240i 2-Series Coupe/ Cabrio
AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G42/ G43 M240i 2-Ser...
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AUTOTECKNIC - Corporate Logo
T#:14386748
Part#: BM-0004-M240I
Ships in 8 Business Days
$ 295.00 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 295.00 USD
Free Shipping on orders $49 and up
Add to Wish List
The AutoTecknic Dry Carbon Cooling Plate will provide your car with better air induction, providing the intake and engine with cooler air during high-speed driving; some customers have even reported better gas mileage and power gains.
Show More Show Less
AutoTecknic Dry Carbon Fiber Cooling Shroud - F97 X3M | F98 X4M
AutoTecknic Dry Carbon Fiber Cooling Shroud - F97 X3M | F98 X4M ...
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AUTOTECKNIC - Corporate Logo
T#:39497988
Part#: BM-0807
Ships in 8 Business Days
$ 595.00 USD
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$ 595.00 USD
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Turner Motorsport offers the AutoTecknic Dry Carbon Fiber Cooling Shroud for the F97 X3M and F98 X4M, providing BMW owners with an advanced cooling solution that enhances both function and style. Whether for spirited driving or track use, this high-performance carbon fiber cooling shroud ensures an optimized engine bay while complementing the aggressive styling of BMW M models.
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AutoTecknic Dry Carbon Fiber Cooling Shroud - G05 X5 | G06 X6 | G07 X7 | F95 X5M | F96 X6M | G09 XM
AutoTecknic Dry Carbon Fiber Cooling Shroud - G05 X5 | G06 X6 | G07 X...
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AUTOTECKNIC - Corporate Logo
T#:39126836
Part#: BM-0325
Ships in 8 Business Days
$ 595.00 USD
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$ 595.00 USD
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The AutoTecknic Dry Carbon Fiber Cooling Shroud for enhanced cooling efficiency and a race-inspired look.
E46 323/325/328/330 Manual, Z4 OEM Behr Radiator
E46 323/325/328/330 Manual, Z4 OEM Behr Radiator
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Behr - Corporate Logo
T#:338021
Part#: 17119071518
In Stock at Vendor
Starting at $ 249.99 USD
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Starting at $ 249.99 USD
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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. Compare to BMW list price of $318! Save big, while still getting the highest quality radiator available for your BMW.

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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REMOTE RADIATOR
REMOTE RADIATOR
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Behr - Corporate Logo
T#:33047035
Part#: 17117634565
In Stock at Vendor
$ 156.99

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

$ 151.99 USD
Free Shipping on orders $49 and up
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$ 151.99 USD
Free Shipping on orders $49 and up
Add to Wish List
AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G20/ G21 330i 3-Series Sedan/ Wagon
AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G20/ G21 330i 3-Seri...
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AUTOTECKNIC - Corporate Logo
T#:14386744
Part#: BM-0004-330I
Ships in 8 Business Days
$ 295.00 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 295.00 USD
Free Shipping on orders $49 and up
Add to Wish List
The AutoTecknic Dry Carbon Cooling Plate will provide your car with better air induction, providing the intake and engine with cooler air during high-speed driving; some customers have even reported better gas mileage and power gains.
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AUTOTECKNIC DRY CARBON FIBER COOLING PLATE - A90 SUPRA
AUTOTECKNIC DRY CARBON FIBER COOLING PLATE - A90 SUPRA
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AUTOTECKNIC - Corporate Logo
T#:21078422
Part#: ATK-TO-0007
Ships in 8 Business Days
$ 495.00 USD
Free Shipping on orders $49 and up
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$ 495.00 USD
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AutoTecknic's Dry Carbon Cooling Plate provides the A90 with better air induction while providing the intake and engine with cooler air during high-speed driving. It also gives your engine bay a fresh appearance. Set your Supra apart from the rest! Treat your car to some better breathing and a sportier look!
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AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G22/ G23/ G26 430i 4-Series Coupe/ Cabrio/ Gran Coupe
AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G22/ G23/ G26 430i 4...
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AUTOTECKNIC - Corporate Logo
T#:14386746
Part#: BM-0004-430I
Ships in 8 Business Days
$ 295.00 USD
Free Shipping on orders $49 and up
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$ 295.00 USD
Free Shipping on orders $49 and up
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The AutoTecknic Dry Carbon Cooling Plate will provide your car with better air induction, providing the intake and engine with cooler air during high-speed driving; some customers have even reported better gas mileage and power gains.
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Behr Radiator Replacement
Behr Radiator Replacement
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For Automatic Vehicles only
Behr - Corporate Logo
T#:591355
Part#: 17117519211
In Stock at Vendor
$ 454.11 USD
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$ 454.11 USD
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Replace your faulty or worn radiator with this factory replacement
Radiator
Radiator
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Behr - Corporate Logo
T#:594798
Part#: 17117576827
Ships in 1-2 days
$ 415.99 USD
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$ 415.99 USD
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Replacement Radiator from Behr Hella
Radiator
Radiator
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Behr - Corporate Logo
T#:594801
Part#: 17117570094
Ships on Jul 27, 2026
$ 374.99 USD
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$ 374.99 USD
Add to Wish List
More than likely, you are going to replace the radiator in your vehicle at least once. The joints at where the cores meet the ends tend to get weak and are the first place to spring a leak. Impacts to the fins themselves can cause holes to form. Corrosion and clogging from the inside can make it less than effective. Replace your leaking unit with a factory replacement and get that jug of coolant out of your back seat.
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Radiator
Radiator
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Behr - Corporate Logo
T#:594800
Part#: 17117605644
Ships on Jul 27, 2026
$ 362.99 USD
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$ 362.99 USD
Add to Wish List
Replacement Radiator from Behr
Behr Radiator - E34
Behr Radiator - E34
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Behr - Corporate Logo
T#:1195792
Part#: 17111723467
Back Ordered
$ 273.99

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

$ 265.99 USD
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$ 265.99 USD
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OE replacement radiator

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