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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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Water Pump - N20 N26

10X Entries Into Our F80 M3 Sweepstakes

T#:29666093

Part#: 11518635089

In Stock

Sale - Save 20% $ 343.99

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

$ 275.19 USD

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Sale - Save 20%

$ 343.99

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

$ 275.19 USD

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A failing water pump can show early warning signs like coolant leaks or a whining noise from the engine bay—but with electric water pumps, failure can be sudden, often with no warning beyond rapid overheating.

If you suspect your water pump is on its way out, prompt replacement is critical to avoid engine damage. Stay alert to any changes in cooling system performance.

Note: Aluminum mounting bolts are single-use and must be replaced during installation.

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Genuine BMW Locking Plug - E30 325e 325es 325i

T#:30617

Part#: 11111285395

In Stock

Sale - Save 19% $ 32.99

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

$ 26.62 USD

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Sale - Save 19%

$ 32.99

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

$ 26.62 USD

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Genuine BMW Cover Lid -
This item fits the following BMW Chassis:
E30

Fits BMW Engines including:
M20

Genuine BMW Heater Hose

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

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Sale - Save 21%

$ 45.99

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

$ 36.50 USD

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

Genuine BMW Expansion Tank to Upper Radiator Hose - E90 335d ...

T#:46422

Part#: 17127803838

In Stock

Sale - Save 23% $ 55.99

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

$ 43.07 USD

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Sale - Save 23%

$ 55.99

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

$ 43.07 USD

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Genuine BMW Hose, Fork To Expansion Tank -
This item fits the following BMW Chassis:
E90

Fits BMW Engines including:
M57

COOLANT PUMP, MECHANICAL

T#:606629

Part#: 11517619303

In Stock

Sale - Save 15% $ 282.99

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

$ 239.85 USD

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Sale - Save 15%

$ 282.99

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

$ 239.85 USD

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If you are dealing with coolant leaks, rising temps, and other similar issues, it's probably time to consider replacing your water pump.

Hex Bolt & Washer Kit

T#:55245856

Part#: 0711990XXKTKT

Ships in 1-2 days

$ 35.31 USD

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$ 35.31 USD

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Turner Motorsport offers this Genuine BMW Hex Bolt and Washer Kit to keep your chassis maintenance or engine refresh completely up to factory standard.

Genuine BMW Auxiliary fan - Z3 2.5 2.8 M Coupe M Roadster

T#:152593

Part#: 64542228432

In Stock

Sale - Save 8% $ 927.99

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

$ 858.32 USD

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Sale - Save 8%

$ 927.99

This product was last offered at the strikethrough price on
08-25-2026

$ 858.32 USD

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Genuine BMW ADDITIONAL FAN

Auxilary Water Pump for Heating System - E34 E32

T#:338205

Part#: 64118390063

Ships in 1 day

Starting at $ 304.99 USD

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Starting at $ 304.99 USD

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The auxiliary water pump helps to move coolant through the heating system. Sometime the unit can develop leaks or the pump itself may fail.

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

This item fits the following BMWs:
3/1990-1995 E34 BMW 525i 530i 535i 540i M5
1988-1994 E32 BMW 735i 735il 740i 740il 750il
1990-1999 E31 BMW 840i 840ci 850i 850ci 850csi

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Genuine BMW Replacement Radiator

Up to model year 07/2017

T#:625190

Part#: 17118743664

In Stock

Sale - Save 19% $ 787.99

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

$ 640.00 USD

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Sale - Save 19%

$ 787.99

This product was last offered at the strikethrough price on
08-25-2026

$ 640.00 USD

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Radiator Hose Gasket - Pack Of 5

T#:577278

Part#: 11537545302KT

In Stock

Sale - Save 12% $ 90.99

This product was last offered at the strikethrough price on
07-12-2026

$ 80.00 USD

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Qty

Sale - Save 12%

$ 90.99

This product was last offered at the strikethrough price on
07-12-2026

$ 80.00 USD

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Genuine BMW Heater & A/c Return Hose 64211361180

T#:11066

Part#: 64211361180

In Stock

Sale - Save 72% $ 39.99

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

$ 11.00 USD

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Qty

Sale - Save 72%

$ 39.99

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

$ 11.00 USD

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GENUINE BMW HEATER & A/C RETURN HOSE 64211361180.--

This item fits the following BMWs:
BMW 3 Series - 3.0/Bavaria

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Genuine BMW Module Carrier - 17117631474 - E71,F15,F16

T#:174446

Part#: 17117631474

In Stock

Sale - Save 70% $ 200.99

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

$ 59.98 USD

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Sale - Save 70%

$ 200.99

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

$ 59.98 USD

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Genuine BMW Module Carrier -
This item fits the following BMW Chassis:
E71,F15,F16

Fits BMW Engines including:
N63,N63N

Bracket Additional Water Pump - F01, F02, F06, F07, F10, F12, F13 ...

T#:46043

Part#: 17117603070

In Stock

Sale - Save 49% $ 59.99

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

$ 30.34 USD

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Sale - Save 49%

$ 59.99

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

$ 30.34 USD

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Genuine BMW Bracket Additional Water Pump -
This item fits the following BMW Chassis:
F01,F02,F06,F10,F12,F13

Fits BMW Engines including:
N63,N63N,S63N

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Genuine BMW Cooling Vent Hose - E38 750iL M73 5.4L

T#:35870

Part#: 11531440104

In Stock

Sale - Save 75% $ 40.99

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

$ 10.26 USD

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Sale - Save 75%

$ 40.99

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

$ 10.26 USD

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Genuine BMW Vent Hose -
This item fits the following BMW Chassis:
E38

Fits BMW Engines including:
M73N

Genuine BMW Engine Water Hose 11531709050

T#:14575

Part#: 11531709050

In Stock

Sale - Save 59% $ 39.99

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

$ 16.38 USD

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Sale - Save 59%

$ 39.99

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

$ 16.38 USD

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GENUINE BMW WATER HOSE

Radiator Lower Support & Bushing Kit

T#:55317651

Part#: 171178RLSKT

Ships in 2 Business Days

$ 56.33 USD

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Qty

$ 56.33 USD

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Keep your cooling system locked down on the street and the track with the Turner Motorsports Radiator Lower Support & Bushing Kit.

Coolant Hose & Hardware Refresh Kit

T#:55317676

Part#: 11531CKT

Ships in 2 Business Days

$ 74.07 USD

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Qty

$ 74.07 USD

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Preventative cooling system maintenance is vital, and this complete hose and clamp overhaul kit is designed to eliminate weak points before they fail.

Cooling & Drive Belt Service Kit

T#:55317703

Part#: 112814CRKT

Ships in 9 Business Days

$ 80.26

This product was last offered at the strikethrough price on
10-08-2026

$ 79.26 USD

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$ 79.26 USD

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Swap out your aged factory components before they fail, and maintain total confidence in your charging, cooling, and air conditioning systems.

Genuine BMW S14 Coolant Hose Refresh Kit - 11531chrKT - E30 M3 ...

T#:59074966

Part#: 11531CHRKT

Ships in 2 Business Days

$ 95.08 USD

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$ 95.08 USD

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This kit replaces the critical coolant hoses and clamps on the E30 M3. It restores cooling system integrity, preventing common hose failures that lead to leaks and overheating.

Radiator Mounting Kit

T#:55317656

Part#: 1711173RMKT

Ships in 1-2 days

$ 59.16

This product was last offered at the strikethrough price on
08-24-2026

$ 59.02 USD

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$ 59.02 USD

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This Genuine BMW Radiator Mounting Kit provides the absolute best option for restoring the factory anchoring system on your chassis.

Oil Cooler Line O-Ring & Screw Kit

T#:55281750

Part#: 1722OCLKT

Ships in 1-2 days

$ 20.60 USD

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Qty

$ 20.60 USD

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This Genuine BMW Oil Cooler Line O-Ring & Screw Kit includes the exact factory components required to safely service your oil cooler hard lines.

Hose F Engine Inlet-Changeover Valve - F22, F23, F30, F31, F32, F33, ...

T#:56110319

Part#: 17125B3AE07

In Stock

6% off MSRP $ 104.99

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

$ 98.99 USD

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Qty

6% off MSRP

$ 104.99

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

$ 98.99 USD

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Service Kit - Intake & Cooling

T#:55245851

Part#: 11XX17KT

Ships in 1-2 days

$ 25.88 USD

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Qty

$ 25.88 USD

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Maintain the factory engineering integrity and peak performance of your ultimate driving machine with this Genuine BMW Intake and Cooling Refresh Kit.

Water Pump Installation Hardware Kit

T#:55209926

Part#: 0071199KT

Ships in 1-2 days

$ 8.59 USD

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Qty

$ 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.

Lower Radiator Mount & Bracket Refresh Kit

T#:55245854

Part#: 1711117XKT

Ships in 1-2 days

$ 26.92 USD

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Qty

$ 26.92 USD

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This Genuine BMW Lower Radiator Mount and Bracket Refresh Kit supplies the factory-original hardware needed to overhaul your lower radiator supports.

Coolant Refresh Kit

T#:55317654

Part#: 1153CRKKT

Ships in 1-2 days

$ 56.52 USD

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Qty

$ 56.52 USD

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Whether you’re maintaining an iconic E30 318i or keeping your daily driver running cool, Turner Motorsport has you covered with this direct-fit Cooling Replacement Kit.

O-Ring And Gasket Kit

T#:55245812

Part#: 17227800XKT

Ships in 4 Business Days

$ 24.21 USD

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$ 24.21 USD

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This Maintenance Seal Kit bundles two high-failure items that should always be replaced anytime the engine oil cooler lines or oil level sensor are disturbed.

RADIATOR RETURN LINE

T#:56869530

Part#: 32415B33329

Ships in 6 Business Days

2% off MSRP $ 169.99

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

$ 165.99 USD

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Qty

2% off MSRP

$ 169.99

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

$ 165.99 USD

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