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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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Geba - Corporate Logo
T#:341052
Part#: 11517527910
In Stock
$ 67.99

This product was last offered at the strikethrough price on
04-21-2026

$ 62.99 USD
Free Shipping on orders $49 and up
$ 62.99 USD
Free Shipping on orders $49 and up
The early M50/M52 engines had a serious weak point: the water pump. BMW originally used a plastic impeller in the waterpump. This would degrade over time and eventually break apart. Your car overheats immediately. This water pump is an updated one with a metal impeller. BMW has since released a water pump with a composte impeller that does not have the same issues and is just as reliable as the metal impeller version. But for piece of mind, the metal impeller is tough to beat.

Geba builds all of their pumps to exceed factory specifications by using a metal impeller. This offers a huge improvement over stock and a massive increase in reliability. Servicing all major European models, Geba has you covered when it comes time for a new water pump.

This waterpump fits the following BMWs:
1999-2006  E46 BMW  323i, 323Ci, 328i, 328Ci, 325i, 325Ci, 325xi, 330i, 330Ci, 330xi
1997-2003  E39 BMW  528i, 525i, 530i
2004-2010  E83 BMW  X3 2.5i & 3.0i
2000-2006  E53 BMW  X5 3.0i
1997-2002  Z3 BMW  Z3 2.8, Z3 2.5, Z3 3.0, MZ3 (S52)
2003-2005  E85 BMW  Z4 2.5i & Z4 3.0i
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Bosch - Corporate Logo
T#:7259
Part#: 13621709967
In Stock
$ 24.23 USD
Free Shipping on orders $49 and up
$ 24.23 USD
Free Shipping on orders $49 and up

To make sure your temperature readings are as accurate as possible, replace your temperature sensor with a high quality OEM Bosch temperature sensor.

OEM replacement for BMW part # 13621709967, 13621709966, and 13621284397. Bosch coolant temperature sensor mounted in the cylinder head on models with the M42, M50 and S50 engines.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!


This item fits the following BMWs:
1988-1991 E30 BMW 318i 318is 318ic M3
1992-1995 E36 BMW 318i 318is 318ti 318ic 325i 325is 325ic M3
3/1987-1988 E28 BMW 528e
1985-1988 E28 BMW535i 535is M5
1989-1995 E34 BMW 525i 535i M5
1985-1989 E24 BMW 635csi M6
1984-1987 E23 BMW 735i
1988-1992 E32 BMW 735i 735il

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Geba - Corporate Logo
T#:348275
Part#: 11517838159
In Stock
$ 249.99 USD
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$ 249.99 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.
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Geba - Corporate Logo
T#:13727082
Part#: 11518632585
In Stock
$ 96.99 USD
Free Shipping on orders $49 and up
$ 96.99 USD
Free Shipping on orders $49 and up
The B58 platform is incredible for high power builds and tuning, but is still prone to the cooling system issues that have plagued BMW for years. Here at ECS, we've noticed customers having issues with the factory water pumps on B58. Enter GEBA, bringing to market a solution that should be more robust than the mechanical pump installed from the factory! This Geba version pump includes a metal roller instead of factory-style plastic!
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Active Autowerke - Corporate Logo
T#:397222
Part#: 14-009
Ships in 10 Business Days
$ 56.99 USD
Free Shipping on orders $49 and up
Plastic thermostat housing cracked on your M50?

Here are your choices: you can wait for the plastic factory thermostat housing cover to break and cause major overheating. (Even with a new stock cover, it won’t take long.) Or you can install a thoughtfully engineered all-aluminum thermostat housing cover from Active Autowerke and never experience this type of failure again. Currently there is no factory upgraded part to this problem. This is an aluminum extruded part that has all of the openings machine properly to fit like factory; from the mounting bolt holes, the seating of the thermostat to the sealing opening for the ORANGE gasket. Forged to exact factory tolerances, everything fits and this unit is a true easy bolt-on – especially suited for racing or load conditions like heavy traffic, where engine temp can rise rapidly. The housing is guaranteed never to break from overheating or over-tightening, and its CNC machined surface ensures a precise seat.

Unit comes complete with a new ORANGE sealing gasket; a new thermostat is recommended but not included.
For hotter climates, a 71 degree thermostat is recommended over the 82 degree unit.

Anything and everything BMW is the mantra at Active Autowerke. Since 1981 they have been serving the BMW community with custom turbocharger kits to a myriad of other innovative and inspiring performance parts.
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Geba - Corporate Logo
T#:3451
Part#: 11511719836
Ships in 4 Business Days
$ 72.99

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

$ 70.99 USD
Free Shipping on orders $49 and up
$ 70.99 USD
Free Shipping on orders $49 and up
This water pump fits BMWs with the M20 6 cylinder engine.

Geba builds all of their pumps to exceed factory specifications by using a metal impeller. This offers a huge improvement over stock and a massive increase in reliability. Servicing all major European models, Geba has you covered when it comes time for a new water pump.

This water pump fits the following BMWs:
1988-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1988 E28 BMW 528e
1989-1990 E34 BMW 525i
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Geba - Corporate Logo
T#:36303277
Part#: 11515A05704
Ships in 8 Business Days
$ 339.99

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

$ 336.99 USD
Free Shipping on orders $49 and up
$ 336.99 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 # 11519455978, 11517632426, and 11517563659
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Bosch - Corporate Logo
T#:639203
Part#: 0392023509
In Stock
$ 65.99 USD
Free Shipping
$ 65.99 USD
Free Shipping
Auxillary water pumps are electric water pumps that pump coolant to critical components of your BMW. A failing pump can cause excessive noise and intermittent cooling issues, leading to potential damage if not replaced quickly enough. If the electric motor dies completely, chances are any parts downstream from the pump will overheat and fail, leading to costly repairs and replacements. Prevent this from happening by installing this brand new Auxillary Water Pump from OEM Bosch! Replaces the following BMW part numbers: 11517643949, 11517850568, 11518605322, 11518643397, 11518671654, 11518679885, 64116834917, 64116834923, 64119147359, 64119484254, 64219372723
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Active Autowerke - Corporate Logo
T#:397219
Part#: 14-010
Ships in 1 Business Day
5% off MSRP $ 259.00

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

$ 246.99 USD
Free Shipping
5% off MSRP
$ 259.00

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

$ 246.99 USD
Free Shipping

When you push your powerplant, thermodynamics push right back. The toll of high performance is higher heat load – and many stock components begin to complain. But Active Autowerke has you covered - this upgraded fan clutch increases viscous coupling of cooling fan blade speed to water pump speed, yielding increased airflow through the radiator for more efficient cooling. A simple, yet wonderful, thing.

This product fits the following BMWs:
1992-1999 E36 323i 325i 328i 330i M3
1998-2006 E46 323i 325i 328i 330i M3

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Geba - Corporate Logo
T#:363610
Part#: 11517838201
Ships on Jan 28, 2027
$ 190.99 USD
Free Shipping
$ 190.99 USD
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This GEBA water pump is a new, high quality OE 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.
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Geba - Corporate Logo
T#:341091
Part#: 11510393336
Ships in 8 Business Days
$ 99.99 USD
Free Shipping
$ 99.99 USD
Free Shipping
Prevent cooling system failure today and replace your water pump!
Geba - Corporate Logo
T#:600245
Part#: 11517648827
In Stock
$ 46.99 USD
Free Shipping on orders $49 and up


Geba - Corporate Logo
T#:36303282
Part#: 11517597715
Ships in 8 Business Days
$ 343.99 USD
Free Shipping on orders $49 and up

BMW F30 Water Pump plays a crucial role in the vehicle's cooling system, directly impacting performance and fuel efficiency. Designed to manage engine cooling, this water pump also supports turbo and transmission cooling, making it an essential component of the engine. BMW has engineered this smart electric water pump with increased output to meet the high cooling demands of the N20/N26 engines, which face additional stress due to the factory intercooler, tight engine bay, and heat from the turbochargers.

  • Enhanced Cooling Performance: Ensures effective cooling of the engine, turbo, and transmission.
  • Smart Electric Design: Features a dynamic electric pump with increased output compared to normally aspirated models.
  • Engine Efficiency: Balances engine power output and cooling responsibilities for optimal performance.
  • Fits Multiple Models: Compatible with 2012+ BMW F30 320i

This water pump is a critical upgrade for maintaining engine health and performance.

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Bosch - Corporate Logo
T#:54744791
Part#: 039202411C
Ships in 2 Business Days
New Item
$ 168.99

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

$ 149.99 USD
Free Shipping on orders $49 and up
$ 149.99 USD
Free Shipping on orders $49 and up
Coolant pump for the charge air cooling system.

Bosch - Corporate Logo
T#:639196
Part#: 0392023486
In Stock
$ 77.99

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

$ 58.99 USD
Free Shipping on orders $49 and up
$ 58.99 USD
Free Shipping on orders $49 and up
Auxillary water pumps are electric water pumps that pump coolant to critical components of your BMW. A failing pump can cause excessive noise and intermittent cooling issues, leading to potential damage if not replaced quickly enough. If the electric motor dies completely, chances are any parts downstream from the pump will overheat and fail, leading to costly repairs and replacements. Prevent this from happening by installing this brand new Auxillary Water Pump from OEM Bosch!
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Geba - Corporate Logo
T#:190639
Part#: 11517524551
Ships in 1-2 days
$ 214.99

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

$ 208.99 USD
Free Shipping
$ 208.99 USD
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This water pump includes the gasket (11517508535) and is a direct replacement for your stock pump. This is a water pump. The thermostat is also located in the water pump housing so you may also want to consider replacing that at the same time.

Geba builds all of their pumps to exceed factory specifications by using a metal impeller. This offers a huge improvement over stock and a massive increase in reliability. Servicing all major European models, Geba has you covered when it comes time for a new water pump.

This item fits the following BMWs:
2004-2005 E60 BMW 545i
2004-2005 E63 BMW 645ci
5/2002-2005 E65 BMW 745i 745li
2004-2006 E53 BMW X5 4.4i X5 4.8is
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Geba - Corporate Logo
T#:6022
Part#: 11510393338
Ships in 6 Business Days
$ 96.37

This product was last offered at the strikethrough price on
08-03-2026

$ 94.99 USD
Free Shipping on orders $49 and up
$ 94.99 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 waterpump will go a long way for keeping your car on the road and operating properly.

Geba builds all of their pumps to exceed factory specifications by using a metal impeller. This offers a huge improvement over stock and a massive increase in reliability. Servicing all major European models, Geba has you covered when it comes time for a new water pump.

This item fits the following BMWs:
1990-1991 E30 BMW 318i 318is 318ic
1992-1998 E36 BMW 318i 318is 318ti 318ic
1996-1998 Z3 BMW Z3 1.9

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Active Autowerke - Corporate Logo
T#:2302749
Part#: 14-016
Ships in 10 Business Days
$ 141.99 USD
Free Shipping
$ 141.99 USD
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CNC machined coolant/water thermostat bypass tube to improve flow on and off the track. Easy plug and play installation and a durable anodized coating make this a simple and reliable temperature control solution.
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Active Autowerke - Corporate Logo
T#:5886968
Part#: 15-012
Ships in 3 Business Days
$ 2,849.99 USD
Free Shipping
$ 2,849.99 USD
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BMW's S55 motor is a modern marvel but one weak point, which Active identified is the entire cooling system for the intake which comprises the charge pipe, the aftercooler and the heat exchanger (or radiator). Finally there is a S55 aftercooler kit upgrade that is good enough to carry the Active Autowerke brand. Years of success in developing cars for motorsport has allowed Active to leverage its expertise to the top-mount charge air cooler on the F80 M3, F82 M4 and F87 M2 Competition. This aftercooler was made for the S55 and crafted using only high-grade aluminum to outperform the factory aftercooler in all situations from everyday driving to the toughest racing. The factory cooler was built to support a specific power target and environment. Many of you have increased the performance of the S55 which quickly overwhelms the stock cooler leading to heat soak and higher intake air temperatures which triggers the ECU to downgrade the performance until cooler air returns. Active's focus was not on a mass-market aesthetic add-on but a properly engineered improvement over the existing hardware. Active uses a tube-and-fin core designed specifically for the S55 and included turbulators to maximize the cooling efficiency in as small a package as possible. The end tanks are billet machined aluminum, not cast, folded, or bonded and ensure even distribution of the water throughout the internal aftercooler cores. High precision fittings, CNC machining, and TIG welding throughout ensures the highest quality construction to prevent pressure loss, and the lowest weight, in a bolt-on replacement. But Active also didn’t leave the aesthetics by the wayside as we dip the visible top of the aftercooler in a carbon fiber coating giving your installed cooling system a decidedly top market look to match the improved cooling performance. The Active silicone charge pipes for the F80 M3, F82/F83 M4 and the F87 M2 Competition improve the flow over the stock, compressed plastic pipes. The Active Silicone Charge Pipes allow you to maximize power on your F8X by securing all the boost that your S55 is making. These pipes replace the hot-side pipes leaving the turbos and into the top-mount aftercooler. The stock S55 charge pipes are notorious for developing hairline fractures at their plastic seams. These fractures or cracks are unnoticeable to the naked eye, but under boost pressure they open up leaking the desired charged air into the engine bay, and consequently can rob your S55 of it's full power potential. In addition, these leaks can trigger your S55's turbochargers to work harder to hit and maintain target boost pressure, potentially wearing them out sooner. Active uses silicone in this area because it will not contribute to heat soak and it's easier to mold for the correct clearances. Active uses a 5-layer silicone hose with all needed adapters and stainless hose clamps included. It fits perfectly with our CNC’d top-mount cooler.
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Bosch - Corporate Logo
T#:57231537
Part#: 039202411E
Special Order: No Guaranteed ETA
New Item
$ 239.99 USD
Free Shipping on orders $49 and up
Maintain precise thermal management and protect critical engine components with this high-efficiency auxiliary water pump from Bosch.

Bosch - Corporate Logo
T#:57231536
Part#: 039202410W
Special Order: No Guaranteed ETA
New Item
$ 241.99 USD
Free Shipping on orders $49 and up
This Bosch Auxiliary Water Pump is built to deliver high-flow, continuous fluid movement through secondary cooling loops, keeping intercoolers cool and heat exchangers working at peak efficiency.
Bosch - Corporate Logo
T#:57231535
Part#: 039202410V
Special Order: No Guaranteed ETA
New Item
$ 204.99 USD
Free Shipping on orders $49 and up
Track days, spirited canyon drives, and high-boost applications put massive thermal demands on your vehicle’s cooling architecture.
Geba - Corporate Logo
T#:36303288
Part#: 11517586925
Special Order: No Guaranteed ETA
$ 312.99 USD
Free Shipping on orders $49 and up
Don't take your car's cooling system for granted. A water pump failure can cost you an engine, which is why preventatively replacing your BMWs water pump and refreshing the cooling system every 60,000 miles. The water pump is a weak point in the cooling system. Replacing your water pump 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, and N53 engines. You will also need to purchase replacement aluminum screws: SEE PART # 11510392553
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Geba - Corporate Logo
T#:36303286
Part#: 11517583836
Special Order: No Guaranteed ETA
$ 343.99 USD
Free Shipping on orders $49 and up
This water pump is designed to provide reliable and efficient cooling for your BMW's engine. This high-quality electric coolant pump is specifically engineered for the F10 and F25 models, ensuring optimal performance and longevity. As a genuine OEM part, it guarantees perfect compatibility with your BMW, offering seamless integration and superior functionality. Key Benefits: OEM part ensures precise fit and reliable performance. Enhances engine cooling efficiency, preventing overheating. Specifically designed for BMW F10 and F25 models. Manufactured with high-quality materials for durability and longevity. Easy installation for a hassle-free replacement process.
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