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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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Graf - Corporate Logo
T#:640662
Part#: 11517838201
In Stock
$ 116.99

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

$ 104.99 USD
Free Shipping
$ 104.99 USD
Free Shipping
Water pumps are a common issue in cooling systems. If they fail, it can lead to dangerous overheating issues and potentially leave you on the side of the road with an engine that's now only good for being a large paperweight. This GRAF water pump is a new, high-quality replacement that will ensure years of trouble-free operation, keeping you on the road with peace of mind. This water pump has a metal impeller and includes the sealing o-ring. This item fits the following vehicles: E9X BMW M3 with S65 E60 BMW M5with S85 E63/4 BMW M6 with S85
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Graf - Corporate Logo
T#:591818
Part#: 11517550484
In Stock
$ 56.89

This product was last offered at the strikethrough price on
05-29-2026

$ 52.22 USD
Free Shipping on orders $49 and up
$ 52.22 USD
Free Shipping on orders $49 and up

Water Pump N14 N18 - Metal Impeller

Upgrade your Mini's cooling system with the Water Pump N14 N18 - Metal Impeller. This high-quality water pump features a durable metal impeller, ensuring reliable performance and longevity for your Mini.

  • Metal impeller enhances durability and reliability
  • Provides efficient cooling to prevent overheating
  • Specifically designed for Mini N14 and N18 engines
  • Direct replacement for OEM water pump
  • Easy installation process for hassle-free maintenance
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Graf - Corporate Logo
T#:368839
Part#: 11517527910
In Stock
$ 76.69

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

$ 70.35 USD
Free Shipping on orders $49 and up
$ 70.35 USD
Free Shipping on orders $49 and up
Due to high failure rate on BMW water pumps, we recommend replacement every 60,000 mile interval. Graf's replacement water pump 11517527910 features a durable metal impeller, while the more expensive Genuine BMW utilizes a high failure plastic impeller.
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Graf - Corporate Logo
T#:3452
Part#: 11519070761
Ships in 1 Business Day
$ 64.13

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

$ 59.24 USD
Free Shipping on orders $49 and up
$ 59.24 USD
Free Shipping on orders $49 and up

5, 6, 7-series WaterPump (for cars with screw-on fan clutch)

Graf manufactures a wide range of cooling system repair parts for many European vehicle makes including BMW and Mini. With a sharp focus on quality materials and precision manufacturing, this company brings you high quality replacement parts that are meant for the long haul.

This item fits the following BMWs:
1980-1981 E12 BMW 528i
1982-1988 E28 BMW 533i 535i 535is
1989-1995 E34 BMW 535i
1982-1989 E24 BMW 633csi 635csi
1980-1987 E23 BMW 733i 735i
1988-1994 E32 BMW 735i 735il

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Graf - Corporate Logo
T#:1180754
Part#: 11519070759
Ships in 1 Business Day
$ 63.11

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

$ 58.18 USD
Free Shipping on orders $49 and up
$ 58.18 USD
Free Shipping on orders $49 and up
Includes gasket
Graf - Corporate Logo
T#:554061
Part#: 11517801063
In Stock
$ 118.03

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

$ 108.03 USD
Free Shipping on orders $49 and up
$ 108.03 USD
Free Shipping on orders $49 and up

Ensure optimal engine cooling in your BMW by replacing the water pump with Turner Motorsport's high-quality replacement. The water pump plays a crucial role in maintaining proper coolant flow, preventing overheating issues and potential engine damage. With a reputation for reliability, this replacement water pump is essential for German vehicle owners seeking peace of mind on the road.

Key Benefits:

  • Prevents overheating and engine damage
  • Common replacement around 60,000 miles
  • Reliable performance for German vehicles
  • Essential for preventative maintenance during timing belt replacement

Some water pumps don't come with thermostats. If yours does not, be sure to browse Turner Motorsport's website to choose a stock or low-temperature thermostat. Also, coolant loss during water pump replacement is inevitable, so be sure to get some factory-approved coolant shipped to your door.

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Behr - Corporate Logo
T#:1196128
Part#: 17111723784
Ships in 1 day
$ 298.99

This product was last offered at the strikethrough price on
07-15-2026

$ 267.99 USD
$ 267.99 USD
Brand new radiator equivalent to OE
Graf - Corporate Logo
T#:12993
Part#: 11517586779
Ships in 1 Business Day
$ 153.69

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

$ 141.83 USD
Free Shipping
$ 141.83 USD
Free Shipping

This water pump includes the gasket (11517508535) and seal (11517507717) and is a direct replacement for your stock pump. This is a water pump only, the thermostat is also located in the water pump housing so you may also want to consider replacing that at the same time.

Graf manufactures a wide range of cooling system repair parts for many European vehicle makes including BMW and Mini. With a sharp focus on quality materials and precision manufacturing, this company brings you high-quality replacement parts that are meant for the long haul.


This item fits the following BMWs:
2006-2010 E60 BMW 550i
2006-2010 E63 BMW 650i
2005-2008 E65 BMW 750i 750li
2007-2013 E70 BMW X5 4.8i X5 xDrive48i

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Graf - Corporate Logo
T#:30397453
Part#: 11518516205
Ships in 2 Business Days
$ 141.99

This product was last offered at the strikethrough price on
05-04-2026

$ 123.99 USD
Free Shipping on orders $49 and up
$ 123.99 USD
Free Shipping on orders $49 and up

The Graf High-Performance Water Pump is engineered to enhance your BMW's cooling system, ensuring peak performance and longevity. This essential component efficiently pumps coolant throughout the engine block, maintaining optimal operating temperatures.

Factory water pumps often feature plastic impellers, which are prone to damage and deterioration due to constant heat exposure. Over time, the plastic becomes brittle and can send debris into your engine's coolant passages, leading to potential engine damage. Graf has addressed this issue by designing a water pump with a robust stainless steel impeller, providing unmatched durability and reliability.

Key Features:

Stainless Steel Impeller: The upgraded impeller design offers superior strength and longevity compared to the factory plastic version, preventing failure and enhancing the water pump's lifespan. Improved Cooling Efficiency: Enhanced coolant circulation helps maintain ideal engine temperatures, reducing the risk of overheating and ensuring consistent performance. High-Performance Durability: Built to withstand the rigors of high-performance driving, this water pump ensures reliable cooling under demanding conditions. Perfect Fit for BMW: Precision-engineered to match your BMW's exact specifications, guaranteeing a straightforward installation and perfect fit. Upgrade to the Graf High-Performance Water Pump and protect your BMW's engine from costly damage. Ensure optimal cooling performance and drive with confidence, knowing your cooling system is built to last.

Enhance your BMW's cooling system with Graf's premium water pump—available now at Turner Motorsport!

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Graf - Corporate Logo
T#:12332
Part#: 11519070755
Ships in 1 Business Day
$ 64.33

This product was last offered at the strikethrough price on
07-15-2026

$ 59.71 USD
Free Shipping on orders $49 and up
$ 59.71 USD
Free Shipping on orders $49 and up

Don't take your car's cooling system for granted! One of the biggest weak points is the cooling system. Replacing your water pump will go a long way for keeping your car on the road and operating properly. If you have noticed a slight coolant leak or see a small amount leaking from the bottom of the pump, its time to replace it. Don't get stuck on the side of the road waiting for a tow truck, replace your water pump as soon as it fails.

Graf manufactures a wide range of cooling system repair parts for many European vehicle makes including BMW and Mini. With a sharp focus on quality materials and precision manufacturing, this company brings you high quality replacement parts that are meant for the long haul.
 

This item fits the following BMWs:
1984-1985 E30 BMW 318i with M10 engine

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Graf - Corporate Logo
T#:594768
Part#: 11510007043
In Stock
Sale - Save 17% $ 116.71

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

$ 97.38 USD
Free Shipping
Sale - Save 17%
$ 116.71

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

$ 97.38 USD
Free Shipping
Behr - Corporate Logo
T#:591360
Part#: 17111728905
In Stock
$ 399.99

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

$ 314.72 USD
Free Shipping on orders $49 and up
$ 314.72 USD
Free Shipping on orders $49 and up
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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Graf - Corporate Logo
T#:581199
Part#: PA1040
Ships in 2 Business Days
$ 149.61

This product was last offered at the strikethrough price on
05-04-2026

$ 136.91 USD
Free Shipping
$ 136.91 USD
Free Shipping
Includes required sealing gaskets and o-ring
Graf - Corporate Logo
T#:42672212
Part#: 11517586925
Ships in 2 Business Days
$ 416.10

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

$ 381.23 USD
Free Shipping on orders $49 and up
$ 381.23 USD
Free Shipping on orders $49 and up
Don't take your car's cooling system for granted. A waterpump failure can cost you an engine, which is why we suggest preventively replacing your BMW's waterpump and refreshing the cooling system every 60,000 miles.
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Graf - Corporate Logo
T#:591808
Part#: 11517520123
In Stock
$ 103.01 USD
Free Shipping
$ 103.01 USD
Free Shipping

Mini Water Pump Replacement

Ensure optimal engine performance with the Mini water pump replacement. Designed to address common cooling system issues, particularly in the water pump department, this replacement part is essential for maintaining proper engine cooling. If you're experiencing coolant leaks or strange noises from under the hood, it's likely your water pump is failing and needs immediate replacement.

  • Prevents coolant leaks
  • Eliminates whining noise from under the hood
  • Critical component for engine cooling system
  • Easy replacement for damaged water pumps
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Behr - Corporate Logo
T#:363371
Part#: 17111737760
Ships in 2 Business Days
$ 687.60

This product was last offered at the strikethrough price on
08-13-2026

$ 497.64 USD
$ 497.64 USD
Replace your leaking radiator

Behr - Corporate Logo
T#:579569
Part#: 376755591
Back Ordered
$ 267.99 USD
$ 267.99 USD
Replace your leaking radiator
Behr - Corporate Logo
T#:33047035
Part#: 17117634565
Ships in 1 day
$ 156.99

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

$ 122.99 USD
Free Shipping on orders $49 and up
$ 122.99 USD
Free Shipping on orders $49 and up

Behr - Corporate Logo
T#:338021
Part#: 17119071518
In Stock at Vendor
Starting at $ 249.99 USD
Starting at $ 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. 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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Graf - Corporate Logo
T#:583852
Part#: 11511707415
Ships in 1 Business Day
$ 55.99

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

$ 53.99 USD
Free Shipping on orders $49 and up
$ 53.99 USD
Free Shipping on orders $49 and up
Replacement Equivalent to OE

Behr Radiator Replacement
For Automatic Vehicles only
Behr - Corporate Logo
T#:591355
Part#: 17117519211
Ships in 1 Business Day
$ 454.11

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

$ 388.67 USD
$ 388.67 USD
Replace your faulty or worn radiator with this factory replacement

M7 Speed - Corporate Logo
T#:386325
Part#: 53-3M7104
Ships in 3 Business Days
Sale - Save 6% $ 49.99

This product was last offered at the strikethrough price on
08-31-2026

$ 47.03 USD
Free Shipping on orders $49 and up
Sale - Save 6%
$ 49.99

This product was last offered at the strikethrough price on
08-31-2026

$ 47.03 USD
Free Shipping on orders $49 and up

Have you ever noticed how crisp and responsive your MINI was after that initial warm-up period, and wanted to keep that feeling for the rest of the day? This 180° F Thermostat is the solution. Not only does the engine maintain its fresh-start power, but also the under-hood temperatures are greatly diminished (see comparison table below). Now when your car sits after a hard run it won't cook and dry out everything under the hood as bad as it did in the stock configuration. This is great for the MINI owner that lives in a hot climate, or those that push their cars hard at the track or local twisty road.

Please Note: This thermostat does not include a replacement gasket. Reuse the gasket from the OEM thermostat.

Cold Weather Alert: If you encounter weather below 50º F or 10º C, please be aware that the ECU could throw a “check engine” light. This is no cause for alarm as the sensors are registering an anomaly and the thermostat is not harming the engine. The “check engine” light can be reset with a diagnostic tool or left as is. Please call if you have questions.
 

Test ParametersThermostat Temp OriginalThermostat Temp M7180Delta (°F)

Intercooler Manifold9870-28

Upper Coolant Hose190179-11

Supercharger at Pulley Shaft Housing178160-18

Head at Thermostat174153-21

Idle w A/C on214185-29

Coolant Temp During Hard Driving212180-32

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Behr - Corporate Logo
T#:594798
Part#: 17117576827
Ships in 1 day
$ 415.99 USD
Free Shipping on orders $49 and up
Replacement Radiator from Behr Hella
Behr - Corporate Logo
T#:594800
Part#: 17117605644
Ships on Sep 21, 2026
$ 362.99 USD
$ 362.99 USD
Replacement Radiator from Behr


Behr - Corporate Logo
T#:594801
Part#: 17117570094
Ships on Sep 21, 2026
$ 374.99 USD
$ 374.99 USD
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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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
$ 265.99 USD
OE replacement radiator