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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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Bav Auto Water Pump - BMW N54 N55

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T#:637476

Part#: 11517632426

In Stock

Sale - Save 17% $ 397.99

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

$ 330.99 USD

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Sale - Save 17%

$ 397.99

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

$ 330.99 USD

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Water pumps are a critical component of your cooling system. A failed water pump will stop the flow of coolant in your vehicle, leading to overheating and eventual engine damage. Replace your faulty or aging water pump with a high-quality Bav Auto unit. Replacement for BMW part # 11517632426 and 11517563659. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Meyle Radiator Fan Clutch - E12, E24, E28, E30, E34, E36, Z3 ...

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T#:384584

Part#: 11521723918

In Stock

$ 108.99

This product was last offered at the strikethrough price on
06-22-2026

$ 99.99 USD

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$ 99.99 USD

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Quality aftermarket replacement

Water Pump - N52 3.0L

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T#:599823

Part#: 11517586925

In Stock

Sale - Save 10% $ 299.99

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

$ 269.99 USD

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Sale - Save 10%

$ 299.99

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

$ 269.99 USD

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

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BMW M Performance Hose From Radiator Bottom - E82 E92 E93 N54 1 M Cou...

T#:22536

Part#: 17127602294

Ships in 1-2 days

10% off MSRP $ 194.99

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

$ 175.99 USD

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10% off MSRP

$ 194.99

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

$ 175.99 USD

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Genuine BMW Hose From Radiator Bottom - Thermostat
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E92,E93

Fits BMW Engines including:
N54T

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BMW M Performance Left Radiator - E82,E92,E93,E82 1M Coupe

T#:46042

Part#: 17117602241

Ships in 1-2 days

3% off MSRP $ 234.99

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

$ 226.99 USD

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3% off MSRP

$ 234.99

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

$ 226.99 USD

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This radiator aids in the cooling of you N54 engine which is know for running on the hot side. This is perfect for cars that see track time and spirited driving.

Genuine BMW Left Radiator
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E92,E93

Fits BMW Engines including:
N54

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Dinan High-Performance Heat Exchanger - F22/23 F3X B46/48 B58 ...

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T#:21045539

Part#: D780-0002

Ships in 2 Business Days

Sale - Save 10% $ 584.99

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

$ 526.46 USD

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Sale - Save 10%

$ 584.99

This product was last offered at the strikethrough price on
09-29-2026

$ 526.46 USD

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The factory B4x/B58 heat exchanger is not built to cater to the rigorous demands often associated with a modified build. The thin core is easily overwhelmed with IAT's rising dramatically once pushed beyond a few successive WOT pulls or even a few minutes at the track. This elevation in temperature gives way to the factory ECU fail safes pulling timing and reducing overall power in order to keep the system from overheating to the point of permanent damage. On an application where enjoyment is directly attributed to pushing the platform to its limits this constraint to cooling presents a challenge for the automotive enthusiast. The Dinan B4x/B58 heat exchanger for the F2x/F3x chassis assists in mitigating these issues with a more robust core (48mm thick Dinan core vs. 27mm thick OEM core) that wields 78% more heat transfer surface area for improved cooling capacity. The significant increase in core thickness requires unique "L" shaped end tanks to be incorporated as well, which also contributes to the overall thermal mass (ability to absorb, store, and release heat) improvement beyond the OEM setup. With up to a 15° IAT delta recorded over stock the Dinan heat exchanger is ready, and able, to assist in extending your vehicles ability to deliver maximum performance time and time again for your driving enjoyment! Features: Average of 8° reduction in IAT's with a maximum reduction of 15° over 15 successive WOT pulls Reduces the tendency to heat soak / go in to limp mode 48mm thick Dinan cooler vs. 27mm thick stock cooler 78% more cooling surface area and volume than stock 100% TIG welded and pressure tested Installation hardware included (inclusive of xDrive specific transmission oil cooler brackets) NOTE: Due to the enlarged core and unique "L" shaped endtanks minor modification to the plastic core stack shroud may be required with some factory configurations ( particularly those with the optional OEM hot climate heat exchanger). Consult the installation PDF for full documentation on what exactly that entails. (https://documents.dinancars.com/d780-0002.pdf)

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Automatic Transmission Cooler - E36 Z3 E34

T#:2069

Part#: 17201728770

Ships in 1 Business Day

$ 207.15

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

$ 205.10 USD

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$ 205.10 USD

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This transmission fluid/oil cooler fits E36 318i 318is 318ti 323i 323is 325i 325is 328i 328is M3, E34 525i 530i 1993-1995 and Z3 1.9 2.3 2.5i 2.8 3.0i with automatic transmission.

This oil cooler fits the following BMWs:
1992-1998 E36 BMW 318i 318is 318ti 323is 325i 325is 328i 328is M3
1993-1995 E34 BMW 525i 525i Wagon
1994-1995 E34 BMW 530i 530i Wagon
1996-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0ibr>

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Motorsport Thermostat - 60C - Complete with Housing - M54 / M52tu ...

T#:1171

Part#: TMS1171

Ships in 6 Business Days

$ 415.45 USD

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$ 415.45 USD

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This is a genuine BMW Motorsport part, designed specifically for BMW racing applications. We use this exact thermostat setup in our Championship-winning E46 330i race car. It is designed to be used on all M54 and M52TU double-VAN0S engines, as used in the 1999-2000 E46 323/328 and 2001-2005 E46 325/330. This 60 degree C (140 defrees F) thermostat comes complete with plastic thermostat housing. It does not use the plug and wiring for the stock DME so this should only be used with an aftermarket engine management system (Motec, Bosch, etc).

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

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BMW Motorsports Water Pump w/ Upgraded Aluminum Impeller - E9X M3 ...

T#:5574

Part#: 11518331044

Special Order: No Guaranteed ETA

$ 999.99 USD

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$ 999.99 USD

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Upgrade from the plastic impeller on the stock water pump to this aluminum impeller pump originally developed by BMW for the M3 GT4. This aluminum water pump was designed to stand up to the abuse of racing but can be used on a standard street car.

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Meyle Water Pump - M62

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T#:579328

Part#: 11510393336

Ships on Nov 16, 2026

$ 106.99 USD

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$ 106.99 USD

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Don't take your car's cooling system for granted. A waterpump failure can cost you an engine, which is why preventatively replacing your BMWs waterpump and refreshing the cooling system every 60,000 miles. The water pump is a weak point is the cooling system. Replacing your waterpump will go a long way for keeping your car on the road and operating properly.

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Motorsport Thermostat - 55 (NO LONGER AVAILABLE)

T#:337991

Part#: 11531417215

Back Ordered

Starting at $ 233.98 USD

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Starting at $ 233.98 USD

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E46M3 Motorsport Thermostat 55C (Also fits Euro E36 M3 engine) A Genuine BMW part this thermostat opens at a much lower temperature than stock to keep your S54 engine (or Euro S50/S52 engine) running cooler in race applications.

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AAE Remanufactured Power Steering Pump - E60, E61

T#:579933

Part#: 5805

Ships in 3 Business Days

$ 259.99 USD

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$ 259.99 USD

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Restore steering performance to the way it was from the factory.

Meyle Coolant Expansion Tank - F22/23 230/M240, F3X 330/340/430/440 B...

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T#:5704977

Part#: 17138677649

Ships on Nov 16, 2026

$ 126.99

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

$ 109.99 USD

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$ 109.99 USD

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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 fewer than six to eight 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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Karbonius Carbon Cooling Shroud Cover - Gloss - G8X M2 / M3 / M4 ...

T#:47199278

Part#: G8XCS01-CF-2

Back Ordered

$ 795.00 USD

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$ 795.00 USD

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Upgrade the appearance of your engine bay with this carbon cooling cover from Karbonius. Crafted from pre-preg carbon fiber, this cover is lighter and more visually appealing than the metal unit installed by BMW. This cover features a 2x2 twill weave and comes with a Gloss finish.

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ACM Air Conditioning Fan - E39

T#:374495

Part#: 64548380780

Back Ordered

$ 229.99

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

$ 223.99 USD

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$ 223.99 USD

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Also known as "pusher fan"

Meyle Replacement Water Pump

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T#:5944166

Part#: 11518516205

Ships on Jan 19, 2027

$ 131.99 USD

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$ 131.99 USD

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The water pump in your vehicle keeps all that coolant flowing freely. If it begins to fail, overheating problems are inevitable. Don't take a chance on doing damage to engine internals by not replacing your water pump. This has been a common problem amongst most German vehicles. Water Pump failure can lead to your vehicle making an unnecessary trip to the repair shop. If your pump stops working, coolant temperatures rise rapidly and can overheat the engine, leading to head gasket or even piston ring failure. This is a great preventative maintenance item when doing any type of timing belt replacement. This is a common replacement around 60,000 miles.

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