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
Meyle Radiator Fan Clutch - E12, E24, E28, E30, E34, E36, Z3 ...
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Meyle - Corporate Logo
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
Facet Radiator Fan Switch - E24, E28, E30, E31, E32, E34, E36, Z3
Facet Radiator Fan Switch - E24, E28, E30, E31, E32, E34, E36, Z3 ...
Facet - Corporate Logo
T#:375144
Part#: 61311378073
Ships in 2 Business Days
$ 44.99 USD
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$ 44.99 USD
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Measures radiator air temperature enabling the fan to turn off or on
Automatic Transmission Cooler - E36 Z3 E34
Automatic Transmission Cooler - E36 Z3 E34
ACM - Corporate Logo
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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Fan Blade
Fan Blade
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Meyle - Corporate Logo
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
Water Pump
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Meyle - Corporate Logo
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
Meyle Radiator Fan Clutch - E31, E32, E34, E38, E39
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Meyle - Corporate Logo
T#:591319
Part#: 11527502804
In Stock
$ 101.99 USD
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$ 101.99 USD
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OEM replacement
Sachs Radiator Fan Clutch - E34, E36, E39, E46, E53, Z3
Sachs Radiator Fan Clutch - E34, E36, E39, E46, E53, Z3
Sachs - Corporate Logo
T#:591739
Part#: 11527505302
Back Ordered
$ 231.08 USD
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$ 231.08 USD
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Common source of engine overheating
Coolant Temperature Sender
Coolant Temperature Sender
Facet - Corporate Logo
T#:586992
Part#: 12621747281
Ships in 2 Business Days
$ 23.99

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

$ 19.99 USD
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$ 19.99 USD
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Meyle Expansion Tank Cap
Meyle Expansion Tank Cap
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Meyle - Corporate Logo
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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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
Coolant Thermostat - Includes Sealing Gasket
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Meyle - Corporate Logo
T#:54852031
Part#: 028 280 0004
In Stock
New Item
$ 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.
Coolant Temperature Sender - 2 Pin
Coolant Temperature Sender - 2 Pin
For vehicles with production date from 09/1992
Meistersatz - Corporate Logo
T#:379619
Part#: 12621747281
Ships in 4 Business Days
$ 8.99 USD
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$ 8.99 USD
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Meistersatz Water Temperature Sensor - E31, E32, E34, E38
Meistersatz Water Temperature Sensor - E31, E32, E34, E38
Located in the water accumilator Located in the thermostat housing. For vehicles with electronic engine-power requlation
Meistersatz - Corporate Logo
T#:379615
Part#: 12621288158
Ships in 4 Business Days
$ 7.99 USD
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$ 7.99 USD
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M14x1.5 Thread
BMW Water Pump Gasket
BMW Water Pump Gasket
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Elring - Corporate Logo
T#:15213971
Part#: 11511722677
Ships in 2 Business Days
$ 3.99

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

$ 2.99 USD
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$ 2.99 USD
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When it comes time to replace the water pump, be sure to replace all the associated gaskets and o-rings to ensure a leak free installation. This gasket seals the water pump to the engine block to keep your engine free from coolant loss, preventing overheating issues.
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Water Temperature Sensor
Water Temperature Sensor
Beru - Corporate Logo
T#:596874
Part#: 12621288158
Ships in 1-2 days
$ 44.99 USD
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M14x1.5 Thread. Your vehicle is equipped with numerous gauges to allow you to have a better idea of what is going on under the hood. By monitoring these gauges, you can prevent premature engine damage due to low oil pressure or high coolant temperatures. If one isn't functional though, you are in the dark as far as that system goes. One of the most vital is coolant temperature. Replace the sensor to get your gauge working properly again.
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Hella Coolant Temperature Sender - E31, E32, E34, E36, E38
Hella Coolant Temperature Sender - E31, E32, E34, E36, E38
For vehicles with production date from 09/1992
Hella - Corporate Logo
T#:580139
Part#: 9107471
Ships in 4 Business Days
$ 15.99 USD
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$ 15.99 USD
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2 pin
Elring Thermostat Gasket - BMW M60 M62 M70 S70
Elring Thermostat Gasket - BMW M60 M62 M70 S70
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:45005599
Part#: 818.437
Special Order: No Guaranteed ETA
$ 2.99 USD
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$ 2.99 USD
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This rubber gasket seals the junction between the thermostat and water pump Measurements: 4.0x76.5mm
Meyle Expansion Tank Cap
Meyle Expansion Tank Cap
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Meyle - Corporate Logo
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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