URO BMW Cooling System Parts & Accessories for BMW 5 Series E28 (1982-1988)

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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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Radiator Fan Switch
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T#:361996
Part#: 61311378073
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$ 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
Thermostat Housing
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T#:392721
Part#: 11531730470
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$ 39.99 USD
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This is a quality aftermarket replacement aluminum thermostat housing for cars with the M20 6 cylinder engine - 325e, 325i, 528e, 525i. This is the side of the housing that mounts to the cylinder head and has openings for the various coolant / engine temperature sensors. There are 4 ports for sensors so check your existing housing for the sensor layout.

If you're looking for a Genuine BMW factory replacement part, Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.
 

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Thermostat Housing Cover
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T#:367144
Part#: 11531265059
In Stock
$ 25.99 USD
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Replace your old or cracked thermostat cover

Fan Clutch
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T#:373086
Part#: 11521723027
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$ 74.00 USD
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Direct replacement from URO

Water Pump
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T#:372934
Part#: 11519070761
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$ 44.99 USD
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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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URO Fan Blade - E12, E23, E24, E28, E30
Fits from 09/79 production date
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T#:12996
Part#: 11521271846
In Stock at Vendor
$ 35.99

This product was last offered at the strikethrough price on
03-02-2026

$ 33.99 USD
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$ 33.99 USD
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The blades on your radiator cooling fan can get brittle and crack over the years. If cracked, the high speed rotation can cause the fan to spin apart. Don't take a chance on having your fan explode under your hood. Replace it now and keep your cooling proper and your radiator safe.
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Thermostat Cover
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T#:384802
Part#: 11531268650
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$ 32.99 USD
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Made to fit just like the stock unit, this replacement will get your coolant system back in top shape quickly. Broken, cracked, or brittle flanges are no longer a problem. Take the worries out of your morning commute with an inexpensive piece of mind.
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Coolant Hose to Throttle Housing Lower Nipple - E30 325e/i 88-91 E34 ...
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T#:7242
Part#: 13541719966
In Stock
$ 7.99

This product was last offered at the strikethrough price on
03-31-2026

$ 7.68 USD
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$ 7.68 USD
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This is the hose that provides coolant to heat the throttle housing on M20 engines. It is connects to the lower nipple.

This item fits the following BMWs:
1988-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1988 E28 BMW 528e
1989-1990 E34 BMW 525i
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Cooling Hose
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T#:373141
Part#: 11531274210
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$ 9.99 USD
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$ 9.99 USD
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Located under intake manifold

Rubber Grommet
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T#:591950
Part#: 17111117442
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$ 11.99 USD
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For mounting of radiator and oil cooler
Expansion Tank Hose
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T#:50066848
Part#: 17121712736
In Stock
New Item
$ 12.79 USD
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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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Radiator Hose - Upper
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T#:373013
Part#: 11531287682
Ships in 2 Business Days
$ 8.99 USD
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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.


Coolant Hose
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T#:373138
Part#: 11531266459
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$ 3.99 USD
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Water pump to thermostat housing
URO Coolant Level Sensor - BMW E24 E30
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T#:37757292
Part#: 61311361248
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$ 12.99 USD
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URO Coolant Level Sensor - BMW E24 E30

URO Coolant Level Sensor - BMW E24 E30 is the perfect solution for restoring accurate coolant level monitoring in your BMW. If you are experiencing a false "low coolant" warning or if your vehicle fails to notify you of dangerously low coolant levels, this high-quality replacement sensor will fix those issues. Designed as a direct-fit OE replacement, this sensor installs easily into your coolant reservoir tank with a simple plug-and-play wiring connection. Made from durable polymer and corrosion-resistant metal materials, this sensor is built to withstand the intense heat of your vehicle’s cooling system. Alloy conductors help minimize electrical resistance for accurate operation and long-lasting reliability.

  • Resolves false "low coolant" indicator light warnings
  • Prevents failure to alert the driver of dangerously low coolant levels
  • Direct-fit OE replacement design for easy installation into the coolant reservoir tank
  • Simple plug-and-play wiring connection for quick installation
  • Manufactured from high-quality polymer and corrosion-resistant metal materials to endure high cooling system temperatures
  • Alloy conductors reduce electrical resistance for precise operation
  • Designed and tested for long-lasting reliability
  • 24 Month Unlimited Mileage Warranty for peace of mind
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Radiator Hose - Lower
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T#:373014
Part#: 11531289859
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$ 15.99 USD
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$ 15.99 USD
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Replace your radiator hose before a blown hose leaves you stranded.

URO Radiator Hose - Upper - BMW E24 E28
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T#:373011
Part#: 11531276647
Ships in 2 Business Days
$ 17.99

This product was last offered at the strikethrough price on
02-22-2026

$ 16.79 USD
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$ 16.79 USD
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Replace your radiator hose before a blown hose leaves you stranded.

Expansion Tank Cap
For vehicles with production date up to 05/1984
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T#:362007
Part#: 17114379047
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$ 7.99 USD
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$ 7.99 USD
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1.2 Bar pressure
Coolant Level Sensor - 109mm Long
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T#:380458
Part#: 61311375715
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$ 15.99 USD
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Replace your coolant level sensor and ensure that your levels are accurately monitored

Coolant Hose
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T#:362012
Part#: 11531287651
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$ 11.99 USD
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From water pump to thermostat housing
Coolant Temperature Sensor
For vehicles with production date up top 09/1985
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T#:372927
Part#: 62110788115
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$ 5.99 USD
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$ 5.99 USD
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This coolant sensor is located in the coolant system, monitor the temperature for both the gauge and ECU.

URO Expansion Tank Cap - BMW E30
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T#:592118
Part#: 17111468077
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$ 6.99 USD
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URO Expansion Tank Cap - BMW E30

The URO Expansion Tank Cap - BMW E30 is a crucial component for maintaining optimal cooling system performance by ensuring proper pressure regulation. Over time, older radiator caps lose their ability to hold pressure, leading to a lower boiling point and potential overheating issues. This high-quality replacement cap is designed to restore factory pressure levels, preventing coolant loss and maintaining engine efficiency. Crafted from durable materials, it resists wear and temperature fluctuations, ensuring long-lasting reliability.

  • Direct replacement for BMW E30 models
  • Maintains correct cooling system pressure to prevent overheating
  • Helps sustain optimal engine temperature and performance
  • High-quality construction for durability and reliability
  • Prevents coolant evaporation and system inefficiencies
  • Easy installation with OE-style fitment
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