BMW Thermostats for BMW 5 Series E34 (1987-1995)

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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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Mahle-Behr Thermostat - 79º C - E34, E39, E52
Mahle-Behr Thermostat - 79º C - E34, E39, E52
Mahle - Corporate Logo
T#:341209
Part#: 11537835558
Ships in 1 Business Day
$ 74.00

This product was last offered at the strikethrough price on
06-05-2026

$ 61.49 USD
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$ 61.49 USD
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Includes sealing o-ring
Thermostat - 80C
Thermostat - 80C
Wahler - Corporate Logo
T#:594831
Part#: 11531713040
In Stock
$ 49.61

This product was last offered at the strikethrough price on
08-13-2026

$ 36.99 USD
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$ 36.99 USD
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Febi Thermostat Housing - E34, E36, Z3
Febi Thermostat Housing - E34, E36, Z3
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:381790
Part#: 11531722531
In Stock at Vendor
$ 53.42 USD
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$ 53.42 USD
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Replacement plastic thermostat housing
Wahler Thermostat - 88�C - E30, E34, E36, Z3
Wahler Thermostat - 88�C - E30, E34, E36, Z3
Wahler - Corporate Logo
T#:369466
Part#: 11537511580
In Stock
$ 52.99

This product was last offered at the strikethrough price on
06-19-2026

$ 51.99 USD
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$ 51.99 USD
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Common point of failure in the cooling system.
Wahler Performance Thermostat - 75*C - M42, M50, M52, S50, S52
Wahler Performance Thermostat - 75*C - M42, M50, M52, S50, S52 ...
Wahler - Corporate Logo
T#:54388511
Part#: 11537511580
Ships in 1 Business Day
New Item
$ 59.99 USD
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$ 59.99 USD
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75°C variant is specifically calibrated for track racing, forced-induction builds, or hot-climate competitive environments
Mahle-Behr Thermostat - 92C - E34, E36, E39
Mahle-Behr Thermostat - 92C - E34, E36, E39
Mahle - Corporate Logo
T#:12476
Part#: 11537511083
Ships in 8 Business Days
$ 29.99

This product was last offered at the strikethrough price on
05-22-2026

$ 27.65 USD
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$ 27.65 USD
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OEM BMW THERMOSTAT:115040
Thermostat - 80°C
Thermostat - 80°C
Mahle - Corporate Logo
T#:594727
Part#: 11531713040
Ships on Sep 21, 2026
$ 35.99 USD
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$ 35.99 USD
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The thermostat on your vehicle controls the flow of coolant based on temperature. When you just start your engine, the thermostat remains closed to accelerate the warm up process. After a few minutes, it opens up to allow the warm fluid to flow. If your vehicle is overheating but not blowing warm air from the heater, the problem is more than likely your thermostat.
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Thermostat - 80°C
Thermostat - 80°C
Wahler - Corporate Logo
T#:375224
Part#: 11531466174
Ships on Sep 28, 2026
$ 30.99 USD
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$ 30.99 USD
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Febi Thermostat - 88°C - E30, E34, E36, Z3
Febi Thermostat - 88°C - E30, E34, E36, Z3
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:382407
Part#: 11537511580
Ships on Dec 1, 2026
$ 32.99 USD
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$ 32.99 USD
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Includes sealing O-ring gasket
Febi Thermostat - 80C - E30, E32, E34
Febi Thermostat - 80C - E30, E32, E34
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:381785
Part#: 11531713040S1
Back Ordered
$ 35.99 USD
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$ 35.99 USD
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Includes sealing O-ring
Wahler Auxiliary Thermostat - E34, E36
Wahler Auxiliary Thermostat - E34, E36
For vehicles with production date from 09/1990
Wahler - Corporate Logo
T#:375968
Part#: 13541730682
Back Ordered
$ 66.99 USD
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$ 66.99 USD
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Thermostat that controls water flow temperature to the throttle body

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