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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OEM Style Hose Clamps
OEM Style Hose Clamps
Turner Motorsport - Corporate Logo
T#:338927
Part#: HOSE-CLAMPS
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Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.
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Bav Auto Spill-Proof Coolant / Antifreeze Funnel
Bav Auto Spill-Proof Coolant / Antifreeze Funnel
Bav Auto Tools - Corporate Logo
T#:580395
Part#: B8800082
In Stock
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This product was last offered at the strikethrough price on
05-03-2026

$ 28.04 USD
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Multiple adapters include to fit a variety of vehicles.
Bav Auto Fan Clutch Wrench - 32mm
Bav Auto Fan Clutch Wrench - 32mm
Bav Auto Tools - Corporate Logo
T#:580348
Part#: B8800019
In Stock
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$ 23.99 USD
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Used to remove your fan clutch
Radiator / Cooling System Pressure Tester- Bavarian Autosport
Radiator / Cooling System Pressure Tester- Bavarian Autosport ...
Bav Auto Tools - Corporate Logo
T#:580397
Part#: B8800084
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$ 124.94 USD
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$ 146.99

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Bav Auto Fan Pulley Holder
Bav Auto Fan Pulley Holder
Bav Auto Tools - Corporate Logo
T#:580358
Part#: B8800031
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This product was last offered at the strikethrough price on
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$ 20.39 USD
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$ 23.99

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Used to remove your fan clutch
Bav Auto Angled Hose Pinch Plier Set - 2pc
Bav Auto Angled Hose Pinch Plier Set - 2pc
Bav Auto Tools - Corporate Logo
T#:580379
Part#: B8800058
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$ 24.74 USD
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Angled jaws close, creating a complete seal every time you use them - the jaws are offset, making it possible to use in hard-to-reach locations. Made of glass-filled nylon for extra strength. These are perfect for use with brake lines, etc.
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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

$ 201.97 USD
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$ 201.97 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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Hella Radiator - Manual - E34
Hella Radiator - Manual - E34
Behr - Corporate Logo
T#:363371
Part#: 17111737760
In Stock at Vendor
$ 687.60 USD
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$ 687.60 USD
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Replace your leaking radiator
Sachs Radiator Fan Clutch - E34, E36, E39, E46, E53, Z3
Sachs Radiator Fan Clutch - E34, E36, E39, E46, E53, Z3
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Sachs - Corporate Logo
T#:591739
Part#: 11527505302
Back Ordered
$ 133.99

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

$ 129.99 USD
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$ 129.99 USD
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Common source of engine overheating
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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$ 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
Behr Radiator - E34
Behr Radiator - E34
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
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$ 265.99 USD
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OE replacement radiator

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