BMW Thermostats for BMW 3 Series E36 (1992-1998)

Clear BMW chassis

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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Aluminum Thermostat Housing Kit - M50

T#:397222

Part#: 14-009

Ships on Sep 18, 2026

$ 56.99 USD

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$ 56.99 USD

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Plastic thermostat housing cracked on your M50?

Here are your choices: you can wait for the plastic factory thermostat housing cover to break and cause major overheating. (Even with a new stock cover, it won’t take long.) Or you can install a thoughtfully engineered all-aluminum thermostat housing cover from Active Autowerke and never experience this type of failure again. Currently there is no factory upgraded part to this problem. This is an aluminum extruded part that has all of the openings machine properly to fit like factory; from the mounting bolt holes, the seating of the thermostat to the sealing opening for the ORANGE gasket. Forged to exact factory tolerances, everything fits and this unit is a true easy bolt-on – especially suited for racing or load conditions like heavy traffic, where engine temp can rise rapidly. The housing is guaranteed never to break from overheating or over-tightening, and its CNC machined surface ensures a precise seat.

Unit comes complete with a new ORANGE sealing gasket; a new thermostat is recommended but not included.
For hotter climates, a 71 degree thermostat is recommended over the 82 degree unit.

Anything and everything BMW is the mantra at Active Autowerke. Since 1981 they have been serving the BMW community with custom turbocharger kits to a myriad of other innovative and inspiring performance parts.

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Rein Thermostat - 88ï¿½C - E30, E34, E36, Z3

2X Entries Into Our F80 M3 Sweepstakes

T#:591800

Part#: 11537511580

In Stock at Vendor

Sale - Save 5% $ 37.99

This product was last offered at the strikethrough price on
08-31-2026

$ 36.09 USD

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Sale - Save 5%

$ 37.99

This product was last offered at the strikethrough price on
08-31-2026

$ 36.09 USD

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Common point of failure in the cooling system.

Rein Thermostat - 92C

2X Entries Into Our F80 M3 Sweepstakes

T#:34114254

Part#: 11537511083

In Stock

Sale - Save 5% $ 11.99

This product was last offered at the strikethrough price on
08-31-2026

$ 11.39 USD

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Sale - Save 5%

$ 11.99

This product was last offered at the strikethrough price on
08-31-2026

$ 11.39 USD

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Rein Thermostat 92C is an essential component designed to regulate the temperature in BMW engines, ensuring the vehicle runs at optimal performance while preventing overheating. Engineered to open at 92°C, this high-quality thermostat allows for precise coolant flow, keeping the engine at the correct temperature for maximum efficiency. Available at Turner Motorsport, the Rein Thermostat 92C is designed specifically for BMW vehicles, offering a direct-fit replacement that ensures easy installation and reliable operation.

Opens at 92°C for precise temperature regulation
Designed specifically for BMW engines for perfect fit and compatibility
Prevents engine overheating and helps protect critical engine components
Enhances overall engine efficiency and performance
Manufactured from durable materials for long-lasting reliability
Direct-fit replacement for easy installation

The Rein Thermostat 92C is the ideal solution for BMW owners who want to ensure their vehicle’s engine operates efficiently and reliably, providing optimal temperature control and enhanced performance.

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Rein Thermostat O-Ring (60 X 3.5 mm) - E28 E30 E32 E34 E36 E39 Z3 E23...

2X Entries Into Our F80 M3 Sweepstakes

T#:591144

Part#: 11531265084

In Stock at Vendor

Sale - Save 5% $ 2.05

This product was last offered at the strikethrough price on
08-31-2026

$ 1.95 USD

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Sale - Save 5%

$ 2.05

This product was last offered at the strikethrough price on
08-31-2026

$ 1.95 USD

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This O-ring seals the thermostat to the cylinder head.

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BMW Thermostats for BMW 3 Series E36 (1992-1998)

Aluminum Thermostat Housing Kit - M50

Rein Thermostat - 88ï¿½C - E30, E34, E36, Z3

Rein Thermostat - 92C

Rein Thermostat O-Ring (60 X 3.5 mm) - E28 E30 E32 E34 E36 E39 Z3 E23...

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