BMW Thermostats for BMW 5 Series E28 (1982-1988)

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BMW thermostats are known to fail, but luckily they typically fail wide open - meaning that your car can still cool. We offer thermostats from various OE suppliers we trust along with upgraded motorsport specific thermostats where applicable to make sure your BMW stays cool on track.
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Packaged by Turner - Corporate Logo
T#:30397451
Part#: 11531251041KT2
Ships in 3 Business Days
$ 223.99

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

$ 222.99 USD
Free Shipping on orders $49 and up
$ 222.99 USD
Free Shipping on orders $49 and up

A well-known issue in BMW models is the water pump, which typically requires servicing every 60,000 miles. To ensure your vehicle's cooling system remains in peak condition, it's also advisable to replace the thermostat during this maintenance. Thankfully, Turner Motorsport has streamlined this process by combining all the necessary parts into one convenient kit.

If you're aiming to maintain and boost your BMW's cooling system, look no further than this premium kit, expertly assembled by the enthusiasts at Turner Motorsport!

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Thermostat Replacement Kit - E28, E30, E34 M20B25/27
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:41289770
Part#: 11531730470TKT
Ships in 3 Business Days
Sale - Save 22% $ 93.99

This product was last offered at the strikethrough price on
06-08-2026

$ 73.38 USD
Free Shipping on orders $49 and up
Sale - Save 22%
$ 93.99

This product was last offered at the strikethrough price on
06-08-2026

$ 73.38 USD
Free Shipping on orders $49 and up
This BMW Thermostat Replacement Kit is the go-to choice for preserving the performance and reliability of your classic M20-powered BMW—keeping your engine running cool and smooth mile after mile.
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MTC - Corporate Logo
T#:359592
Part#: 11531730470
Ships in 7 Business Days
$ 33.99 USD
Free Shipping on orders $49 and up

This is the stock 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.

Mission Trading Company is a worldwide leader in the manufacturing of European, Japanese and domestic auto parts. With factories around the world producing parts to the most stringent of standards MTC is there with the parts for your next project.


This item fits the following BMWs:
1984-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
5/1982-1988 E28 BMW 528e
1989-1990 E34 BMW 525i

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