BMW Cooling System Parts & Accessories for BMW 7 Series E32 (1988-1994)

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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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Mahle-Behr - Corporate Logo
T#:2199
Part#: 11531713040
Ships in 2 Business Days
$ 36.00

This product was last offered at the strikethrough price on
04-25-2026

$ 35.99 USD
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$ 35.99 USD
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The thermostat regulates the temperature of your coolant. At a predetermined temperature the thermostat will open to let coolant flow to the radiator and be cooled by airflow or the fan. Over time the thermostat will become stuck open or closed, leading to a variety of issues. A closed thermostat will never allow the coolant to reach the radiator and be cooled. Hot coolant will continue to circulate through the engine and absorb even more heat until boiling and the system overheats. An open thermostat is not as bad but is still not ideal - the coolant is always cool, with the temp needle always reading in the cool range. This tells the ECU to richen the fuel mixture to bring the car up to normal operating temp. So your fuel mileage decreases and the car runs rich.

Replacing the thermostat is an easy but messy job. This thermostat includes the main o-ring (but a housing gasket may be required). Consider replacing the housing and any associated temp sensors while you're in there. The cooling system will need to be bled after.

Most of the engines from the mid-1980s through the 1990s use the same thermostat design and they are interchangeable among the different temperatures. This is the 80* thermostat, towards the lower end of the range. However, keep in mind that BMW spent a lot of time engineering the cooling system to work in all kinds of conditions and changing thermostat temperature is not recommended to fix any failures in the cooling system.

This thermostat fits the following BMWs:
1977-1983 E21 BMW 323i
1986-1991 E30 BMW 318is 318ic 325e 325es 325i 325ic 325is 325ix
1992-1999 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1982-1988 E28 BMW 528e
1986-1988 E28 BMW 535i
1989-1995 E34 BMW 525i 535i
1997-1998 E39 BMW 528i
1986-1989 E24 BMW 635csi
1988-1994 E32 BMW 735i 735il
1997-2000 Z3 BMW Z3 2.8 M Roadster M Coupe
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Mahle-Behr - Corporate Logo
T#:340540
Part#: 11527831619
In Stock
$ 298.99

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

$ 172.99 USD
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$ 172.99 USD
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This OEM Hella/Mahle-Behr engine fan clutch fits BMW E46 M3, Z3 M Roadster, M Coupe 2001-2002, E34 535i & M5, and E32 735i 735il. Made to the same or higher standards of quality as the genuine part, ensuring proper fan control and cooling. Failed fan clutches can result in overheating due to the fan not spinning fast enough to deal with excess heat or can cause poor engine performance when a clutch has locked up causing the fan to be fully engaged permanently.

Hella is a premium manufacturer that supplies automotive parts to numerous car brands across the world. Everything from electrical to mechanical genuine parts have been made and supplied directly to BMW before the vehicles ever leave the production floor. Their high quality, long lasting parts have made them a trusted brand chosen to help keep your BMW on the road for many years to come.

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:
2001-2006 E46 BMW M3
1989-1993 E34 BMW 535i M5
1988-1992 E32 BMW 735i 735il
2001-2002 Z3 BMW M Roadster M Roadster

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Radiator Fan Clutch
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373088
Part#: 11527831619
In Stock
$ 71.83 USD
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Direct replacement

Mahle-Behr - Corporate Logo
T#:340539
Part#: 11527505302
Ships in 1 Business Day
$ 238.99

This product was last offered at the strikethrough price on
08-26-2026

$ 175.99 USD
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$ 175.99 USD
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This clutch engages the belt-driven engine fan when the engine is warm/hot, and dis-engages the fan when cold/cool. These commonly fail, causing the engine fan to not spin fast enough (or at all) when your car is stopped in traffic, causing engine to overheat.

This fan clutch fits many 6 cylinder BMWs, including the following::

1992-1998  E36 BMW  323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005  E46 BMW  323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi - Automatic Transmission
1991-1995  E34 BMW  525i 535i M5
1997-2003  E39 BMW  525i 528i 530i
1988-1994  E32 BMW  735i 735il
1997-2002  Z3 BMW  Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1998-2000  Z3 BMW  M Roadster M Coupe (s52)
2000-2006  E53 BMW  X5 3.0i
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Radiator Fan Switch
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URO - Corporate Logo
T#:361996
Part#: 61311378073
In Stock
$ 26.44 USD
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$ 26.44 USD
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Measures radiator air temperature enabling the fan to turn off or on
URO Fan Blade - BMW E3X
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URO - Corporate Logo
T#:373133
Part#: 11521712110
Ships in 2 Business Days
$ 33.99 USD
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Replace your fragile fan blades before they break and damage your radiator.

Radiator Fan Clutch
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373087
Part#: 11527502804
In Stock
$ 91.99 USD
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$ 91.99 USD
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Keep your engine cool
Mahle-Behr - Corporate Logo
T#:374303
Part#: 11527502804
Ships in 2 Business Days
$ 367.99

This product was last offered at the strikethrough price on
08-26-2026

$ 338.99 USD
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$ 338.99 USD
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This is the viscous fan clutch for the for the engine fan on M60/M62 V8 engines. When the engine is cool or even at normal operating temperature, the fan clutch partially disengages the engine's mechanically-driven radiator cooling fan. This saves power, since the engine does not have to fully drive the fan. If engine temperature rises above the clutch's engagement temperature setting, the fan becomes fully engaged, thus drawing a higher volume of ambient air through the vehicle's radiator, which in turn serves to maintain or lower the engine coolant temperature to an acceptable level.Typically, when the fan clutch fails the car with tend to overheat at idle or in slow moving traffic.

This item fits the following BMWs:
1993-1995  E34 BMW  530i 540i
1997-2003  E39 BMW  540i
1988-1994  E32 BMW  740i 740il 750il
1995-2001  E38 BMW  740i 740il 750il
1990-1999  E31 BMW  840i 840ci 850i 850ci 850csi
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Mahle-Behr - Corporate Logo
T#:399788
Part#: 17111719110
In Stock
$ 75.99

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

$ 65.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 75.99

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

$ 65.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up

Mahle-Behr - Corporate Logo
T#:369498
Part#: 17112242138
In Stock
$ 360.99

This product was last offered at the strikethrough price on
05-12-2026

$ 319.99 USD
Limited Qty Sale
$ 360.99

This product was last offered at the strikethrough price on
05-12-2026

$ 319.99 USD
Limited Qty Sale

OEM Hella/BEHR brand replacement radiator for all E34 530i 540i and E32 740i 740il E31 850csi. This radiator is made by Hella/BEHR, an original equipment supplier to BMW. Hella/BEHR radiators are what we use our own BMWs and customer installs.

Hella is a premium manufacturer that supplies automotive parts to numerous car brands across the world. Everything from electrical to mechanical genuine parts have been made and supplied directly to BMW before the vehicles ever leave the production floor. Their high quality, long lasting parts have made them a trusted brand chosen to help keep your BMW on the road for many years to come.

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:
1992-6/1994 E34 BMW 530i Manual Transmission
1992-1995 E34 BMW 540i Manual Transmission
1992-1995 E34 BMW 540i Automatic Transmission - for cars with external transmission cooler
1993-1994 E32 BMW 740i 740il only for cars with external transmission cooler
1994-1995 E31 BMW 850csi

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Aluminum Water Pump Pulley - 104MM
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:374330
Part#: 11511736910
In Stock
Sale - Save 22% $ 32.99

This product was last offered at the strikethrough price on
05-14-2026

$ 25.78 USD
Free Shipping on orders $49 and up
Sale - Save 22%
$ 32.99

This product was last offered at the strikethrough price on
05-14-2026

$ 25.78 USD
Free Shipping on orders $49 and up
Direct replacement durable aluminum pulley
Cooling Fan Shroud
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:377317
Part#: 17111723977
Back Ordered
$ 52.99 USD
Free Shipping on orders $49 and up
Replacement for missing or broken shrouds


Water Pump
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URO - Corporate Logo
T#:372934
Part#: 11519070761
Ships in 2 Business Days
$ 44.99 USD
Free Shipping on orders $49 and up
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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Expansion Tank Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373093
Part#: 11531711002
Back Ordered
$ 41.99 USD
Free Shipping on orders $49 and up
Connects between the thermostat and the lower expansion tank then to the heater core
Mahle-Behr - Corporate Logo
T#:2246
Part#: 11531729720
Ships on Oct 22, 2026
$ 52.99 USD
Free Shipping on orders $49 and up
Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. This thermostat fits BMW E32 750il and E31 850i with M70 engine.

Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.

This item fits the following BMWs:
1989-1994 E32 BMW 750il
1991-1995 E31 BMW 850i with M70 engine
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Coolant Hose
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URO - Corporate Logo
T#:373098
Part#: 64218390710
Ships in 2 Business Days
$ 21.99 USD
Free Shipping on orders $49 and up
Connects to coolant recovery tank

Radiator Hose - Upper
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373022
Part#: 11531722682
Back Ordered
$ 28.05 USD
Free Shipping on orders $49 and up
Over the years and with exposure to extremely hot coolant, the coolant hoses in your vehicle can take a beating. Being made of reinforced rubber, these hoses can fail in a number of ways. Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded. Replace it at the first sign of wear to keep your coolant in your engine.
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Radiator Fan Clutch
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:56507828
Part#: 11527502804
Ships on Oct 3, 2026
New Item
$ 85.99 USD
$ 85.99 USD

Coolant Level Sensor
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:30728984
Part#: 61311378320
In Stock
Sale - Save 56% $ 34.99

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

$ 15.29 USD
Free Shipping on orders $49 and up
Sale - Save 56%
$ 34.99

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

$ 15.29 USD
Free Shipping on orders $49 and up
Mahle-Behr - Corporate Logo
T#:2766
Part#: 17111742231
In Stock
$ 20.99

This product was last offered at the strikethrough price on
09-10-2026

$ 19.99 USD
Free Shipping on orders $49 and up
$ 19.99 USD
Free Shipping on orders $49 and up
This radiator expansion tank cap is used most BMW's from 1991-2006. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.

Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.

This item fits the following BMWs:
1990-1991 E30 BMW 318i 318is 318ic
1992-1998 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
1989-1995 E34 BMW 530i 535i 540i M5
1991-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i 540i M5
1989-1994 E32 BMW 735i 735il 740i 740il 750il
1995-2001 E38 BMW 740i 740il 750il
2002-2008 E65 BMW 745i 745li 750i 750li 760i 760li
1990-1998 E31 BMW 840i 840ci 850i 850ci 850csi
2004-2011 E83 BMW X3 2.5i X3 3.0i X3 3.0si
2000-2006 E53 BMW X5 30.0i X5 4.4i X5 4.6is X5 4.8is
1996-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Coupe M Roadster
2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si M Roadster M Coupe
2000-2003 E52 BMW Z8 Z8 Alpina
2007+ E90 BMW 335i & 335xi
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Radiator Mount Support - Upper
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:377277
Part#: 17111712911
In Stock
$ 1.67 USD
Free Shipping on orders $49 and up
Secures the upper radiator bracket to core support.

Water Pump
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URO - Corporate Logo
T#:361969
Part#: 11510007042
Ships in 2 Business Days
$ 88.99 USD
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$ 88.99 USD
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With housing, gaskets and metal impeller
URO Water Pump O-Ring (Small) - BMW M60 M62 S62 M70 S70
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:377294
Part#: 11531710055
In Stock
$ 1.01 USD
Free Shipping on orders $49 and up
When it comes time to replace the water pump, be sure to replace all the O-Rings associated with it to ensure that your car stays leak free. If you are experiencing leaking issues, be sure to inspect these rings, as they might have worn down. This specific ring is used when replacing water pump on cooling pipe to the water accumulator. There are two per car.
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Expansion Tank Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:50066848
Part#: 17121712736
In Stock
$ 12.79

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

$ 10.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 12.79

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

$ 10.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Coolant overflow hose designed to route excess coolant to and from the expansion tank, helping regulate system pressure and maintain proper coolant levels. Manufactured for correct fit and flow, it ensures reliable expansion tank operation and leak-free performance.
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Water Temperature Sensor
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:372926
Part#: 12621288158
Ships in 2 Business Days
$ 6.99 USD
Free Shipping on orders $49 and up
$ 6.99 USD
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Replace the sensor to get your gauge working properly again.
URO Rubber Mount - Radiator - E30 E32 E34 E36 Z3
Lower
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:591951
Part#: 17111178412
Ships in 2 Business Days
$ 3.12 USD
Free Shipping on orders $49 and up
$ 3.12 USD
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URO Parts is one of the leading manufacturers of high quality direct replacement aftermarket components, covering a wide range of makes and models. All of their replacement parts are manufactured to ISO 9000 certification standards, so you can expect long lasting performance from URO Parts.
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URO Coolant Hose - BMW E34 E32
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373028
Part#: 64211390934
Ships in 2 Business Days
$ 6.99 USD
Free Shipping on orders $49 and up
Connects the accumulator to the water valve

Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373138
Part#: 11531266459
Ships in 2 Business Days
$ 3.99 USD
Free Shipping on orders $49 and up
Water pump to thermostat housing

Heater Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373063
Part#: 64211384763
Ships in 2 Business Days
$ 8.99

This product was last offered at the strikethrough price on
04-10-2026

$ 6.99 USD
Free Shipping on orders $49 and up
$ 6.99 USD
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Water valve to water pump
Cooling Fan Assembly
We Price Match - Give Us A Call or Chat!
VDO - Corporate Logo
T#:31291056
Part#: 64541392913
Ships on Oct 21, 2026
$ 161.99 USD
Free Shipping on orders $49 and up

Mahle-Behr - Corporate Logo
T#:20716
Part#: 17111468080
Ships on Oct 22, 2026
$ 260.99 USD
$ 260.99 USD

A common failure item on the 1989-1992 e34 535, E32 735i/ili with Automatic transmission is the radiator. It is such a common failure item we recommend replacing this item preventatively every 80,000 miles. This Radiator is made by Hella/Behr, a high quality OE manufacturer. OEM replacement for BMW part # 17111723467, 17111709459, 17111712360.

Hella is a premium manufacturer that supplies automotive parts to numerous car brands across the world. Everything from electrical to mechanical genuine parts have been made and supplied directly to BMW before the vehicles ever leave the production floor. Their high quality, long lasting parts have made them a trusted brand chosen to help keep your BMW on the road for many years to come.

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:
1989-1993 E34 BMW 535i
1988-1992 E32 BMW 735i 735il

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Radiator Fan Clutch
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:57304041
Part#: 11527831619
Ships on Dec 29, 2026
New Item
$ 75.99 USD
Free Shipping on orders $49 and up

Radiator Hose - Upper
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373024
Part#: 11531741405
Ships in 2 Business Days
$ 8.99 USD
Free Shipping on orders $49 and up
$ 8.99 USD
Free Shipping on orders $49 and up
Hose from radiator to water pump