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BMW Cooling System Parts & Accessories for BMW 5 Series E34 (1987-1995)

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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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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

$ 93.99 USD

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$ 93.99 USD

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Quality aftermarket replacement

Mahle-Behr Thermostat - 79Âº C - E34, E39, E52

T#:341209

Part#: 11537835558

Ships in 2 Business Days

$ 74.00

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

$ 61.49 USD

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$ 61.49 USD

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Includes sealing o-ring

Automatic Transmission Cooler - E36 Z3 E34

T#:2069

Part#: 17201728770

Ships in 2 Business Days

$ 207.15

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

$ 201.87 USD

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$ 201.87 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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OEM Nissens Radiator - E34 525i M50 M20 2.5L

For vehicles with a Manual Transmission only

T#:588569

Part#: 17111469177

Ships in 6 Business Days

$ 222.99 USD

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$ 222.99 USD

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This radiator is made by Nissens, an original equipment supplier to BMW. The cooling system is a weak point on most BMWs, causing many BMWs to develop issues in as few as 50,000 miles. Overheating your engine can and usually will result in large repair bills and sometimes a warps the cylinder head(s), requiring intensive repair or full replacement. Prevent potential failure by replacing your radiator early, keeping your BMW happy and cool. This is the brand we use exclusively on our own BMWs, and think you should as well! 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!

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Auxiliary Fan Assembly

T#:586994

Part#: 64541392913

Ships in 7 Business Days

$ 191.99 USD

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$ 191.99 USD

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OEM Nissens Radiator - Automatic Transmission - E34 530i

T#:583897

Part#: 17111702453

In Stock

$ 325.99

This product was last offered at the strikethrough price on
09-07-2026

$ 268.99 USD

Limited Qty Sale

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Qty

$ 325.99

This product was last offered at the strikethrough price on
09-07-2026

$ 268.99 USD

Limited Qty Sale

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Replacement radiator for all E34 530i with M60 V8 engine. This radiator is made by Nissens, an original equipment supplier to BMW. This is the brand we use exclusively on our own 5 series BMWs, and think you should as well.

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: 1994-1995 E34 BMW 530i - Automatic Transmission 6/1994-1995 E34 BMW 530i - Manual Transmission

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Nissens Radiator - E31, E32, E34

T#:369502

Part#: 17112242138

Ships in 2 Business Days

$ 176.67 USD

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$ 176.67 USD

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Complete new radiator

Mahle-Behr Thermostat - 92C - E34, E36, E39

T#:12476

Part#: 11537511083

In Stock

$ 30.99 USD

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Qty

$ 30.99 USD

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OEM BMW THERMOSTAT:115040

Thermostat - 80°C

T#:594727

Part#: 11531713040

Ships on Oct 26, 2026

$ 35.99 USD

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$ 35.99 USD

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The thermostat on your vehicle controls the flow of coolant based on temperature. When you just start your engine, the thermostat remains closed to accelerate the warm up process. After a few minutes, it opens up to allow the warm fluid to flow. If your vehicle is overheating but not blowing warm air from the heater, the problem is more than likely your thermostat.

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Fan Blade

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T#:594536

Part#: 11521723363

Ships on Oct 30, 2026

$ 32.99 USD

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$ 32.99 USD

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This fan is driven by the belt, engaged by the fan clutch. If you have bad motor mounts, it's quite common for the blades of this fan to make contact with the radiator or radiator shroud, essentially self-destructing the fan into many peices. Be sure to get a new fan clutch, while you are replacing this.

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Water Pump

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T#:582577

Part#: 11519070761

Ships on Oct 30, 2026

$ 55.99 USD

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$ 55.99 USD

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Meyle Radiator Fan Clutch - E31, E32, E34, E38, E39

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T#:591319

Part#: 11527502804

In Stock

$ 101.99 USD

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$ 101.99 USD

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OEM replacement

Coolant Temperature Sensor - E36, E34, E32, E38, E31

T#:7172

Part#: 12621747281

In Stock

$ 13.99 USD

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$ 13.99 USD

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This is the engine coolant temperature sensor that is mounted into the cylinder head.

Meyle Expansion Tank Cap

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T#:579357

Part#: 3148009004

In Stock

Sale - Save 40% $ 14.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.99 USD

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Qty

Sale - Save 40%

$ 14.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.99 USD

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Replace worn or missing pieces.

Coolant Thermostat - Includes Sealing Gasket

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T#:54852031

Part#: 028 280 0004

In Stock

$ 11.99 USD

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$ 11.99 USD

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This Meyle-Original replacement thermostat is a direct-fit solution designed to maintain a rock-solid, factory-correct 80°C operating temperature.

Nissens Radiator - E31 E32 E34

For vehicles with production date up to 05/94

T#:596366

Part#: 17112242138

Ships in 2 Business Days

$ 239.99

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

$ 232.99 USD

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$ 232.99 USD

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Nissens Radiator - Manual Transmission - E32, E34

T#:579947

Part#: 60596A

Ships in 2 Business Days

$ 262.52

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

$ 242.26 USD

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$ 242.26 USD

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Replace your leaking radiator to prevent major damage.

BMW 520 I/ 525 I/ AUT/ AC RADIATOR

T#:583900

Part#: 17111468469

Ships in 7 Business Days

$ 283.99 USD

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Qty

$ 283.99 USD

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OEM Nissens Radiator - E32 735i/iL, E34 535i (Automatic Transmission)...

T#:583901

Part#: 17111468080

Back Ordered

$ 292.99 USD

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Qty

$ 292.99 USD

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This radiator is made by Nissens, an original equipment supplier to BMW. The cooling system is a weak point on most BMWs, causing many BMWs to develop issues in as few as 50,000 miles. Overheating your engine can and usually will result in large repair bills and sometimes a warps the cylinder head(s), requiring intensive repair or full replacement. Prevent potential failure by replacing your radiator early, keeping your BMW happy and cool. This is the brand we use exclusively on our own BMWs, and think you should as well! 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!

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Radiator

T#:554447

Part#: 17111468082

Ships in 2 Business Days

$ 273.99 USD

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Qty

$ 273.99 USD

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FAE Water Temperature Sensor - E31, E32, E34, E38

Located in the water accumilator Located in the thermostat housing. For vehicles with electronic engine-power requlation

T#:7171

Part#: 12621288158

Ships on Nov 2, 2026

$ 16.99 USD

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Qty

$ 16.99 USD

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ENGINE ELECTRICAL TEMPERATURE SENSOR, WATER 12621288158

Meyle Expansion Tank Cap

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T#:5958735

Part#: 17111742232

Back Ordered

$ 10.99 USD

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$ 10.99 USD

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Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. The coolant expansion tank cap keeps necessary pressure on your coolant to increase efficiency. If you have an overheating issue in your vehicle, a simple, quick, and inexpensive part to replace is this cap. Often times, the coolant is not kept under enough pressure to keep it from boiling or expanding too much. This cap keeps all the heat and liquid inside the coolant system for maximum efficiency. Should be replaced each time major coolant system service is performed.

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