BMW Cooling System Parts & Accessories for BMW 3 Series E36 (1992-1998)

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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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E36/E46/Z3/Z4 ECS Tuning Aluminum Water Pump Pulley
E36/E46/Z3/Z4 ECS Tuning Aluminum Water Pump Pulley
Provides a bolt-on 8% water pump overdrive to increase cooling.
ECS - Corporate Logo
T#:363707
Part#: 001977ECS03A
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Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock water pump pulley used on the M50/M52/M52TU/M54 engine in the E36, E46, Z3, Z4, and other models. It's uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.

Fit the following BMWs: 
1992-1995 E34 BMW - 525i M50 (provides an 8% overdrive)
1992-1999 E36 BMW - 325i 325ic 325is 323i 323is 328i 328is 328ic M3 (provides an 8% overdrive)
1997-09/1998 E39 BMW - 528i (provides an 8% overdrive)
09/1998-2003 E39 BMW - 525i 528i 530i (factory size)
1999-2006 E46 BMW - 323i 323Ci 325i 325Ci 325xi 328Ci 328i 330i 330xi 330Ci (factory size)
2000-2006 E53 X5 BMW - 3.0i (factory size)
2004-2005 E60 BMW - 525i 530i M54 engine (factory size)
2004-2005 E83 X3 BMW - 2.5i 3.0i M54 engine (factory size)
1997-2000 E36/7 Z3 BMW - 2.8i MZ3 (provides an 8% overdrive
1999-2002 E36/7 Z3 BMW - 2.3 2.5 2.5i 3.0i (factory size)
2003-2006 E85/6 Z4 BMW - 2.5i 3.0i M54 engine (factory size)

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OBDI Conversion Part - Turner Motorsport OBD-I 3.2 Coolant Hose Adapter
Turner Motorsport - Corporate Logo
T#:3667
Part#: TEN9931007
In Stock
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$39.56
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Made in the USA The TMS Coolant Hose Adapter is needed when you are upgrading to OBD-I (1992-1995 components) on a 3.2 or 2.8 liter engine. These earlier engines use a fitting to secure the heater hose to the front engine cover. The 3.2 and 2.8 liter engines do not have this fitting. This is also needed if you are doing an E30 3.2 or 2.8 engine conversion using OBD-I electronics.


There is no way to affix a coolant hose to the 3.2L M3 Engine in stock form.


Apply two-part epoxy (Included) and insert the TMS Coolant Hose Adapter.


Tap into place with hammer to assure a watertight seal.


Once installed, this is how the fitting should look, ready to accept the coolant hose.


Clean off any excess epoxy. Once installed, the fitting appears to be a factory part.


Included with the kit: TMS Coolant Hose Adapter, two-part epoxy w/mixing cup, wooden mixing stick.

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ECS Tuning Aluminum Coolant Bleeder Screw
ECS - Corporate Logo
T#:363070
Part#: 003530ECS01A
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Replace the flimsy plastic bleeder screw used in the coolant expansion tank or in one of the cooling system hoses with this high quality, durable, aluminum bleeder screw. The stock plastic screw can deform over time due to heat or even regular use. We have even seen the head of the screw snap off, leaving the threaded body stuck in the expansion tank. This aluminum screw will help to prevent sudden failure of the bleeder screw, which can result in immediate overheating of the car.

ECS Tuning's Aluminum Coolant Bleeder Screw replaces Genuine BMW Part Number 17111712788

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ECS E36 Silicone Radiator Hose Kit
ECS - Corporate Logo
T#:362964
Part#: 003628ECS01
In Stock
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$72.86
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Unlike factory rubber hoses, silicone can withstand higher temperatures and pressures with minimal wear. Rubber will wear out and weaken so don't let it bite you when it counts! Silicone has been proven during extreme racing conditions and won't be the weak link that ruins your day.

This E36 ECS silicone hose set replaces two hoses - 
11531708499, upper radiator hose 
11531726344, lower radiator hose 

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Hose Clamp - 40mm-60mm
Bremmen Parts - Corporate Logo
T#:5227
Part#: 040-60T
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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.

Features:
  • 9mm band width
  • 6mm hex & slotted head
  • Smooth inside of band = optimal hose protection
  • OEM
  • 430 Stainless steel band and housing with zinc plated steel screw
  • Asymmetric housing = even distribution of forces and prevents tilting of the clamp when tightening
  • Screw support = ease of assembly due to the safe guidance of the emerging band
  • Short housing saddle = even contact pressure = improved efficiency

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    Bav Auto Coolant Expansion Tank - E36 E39 Z3 M50 M52 S50 S52
    Bavarian Autosport - Corporate Logo
    T#:638094
    Part#: 17111723520
    In Stock
    New Item
    Sale - Save 29% $24.95
    $17.81
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    Sale - Save 29% $24.95
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    Replace your old expansion tank to prevent potential failure or leaks. Includes a brand new coolant level sensor. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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