BMW Thermostats for BMW Z3 (1996-2002)

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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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Bav Auto Thermostat With Aluminum Housing - M52TU M54
For vehicles with production date from 09/1998
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:12544802
Part#: 11531437040
In Stock
Sale - Save 19% $ 104.99

This product was last offered at the strikethrough price on
05-03-2026

$ 84.99 USD
Free Shipping on orders $49 and up
Sale - Save 19%
$ 104.99

This product was last offered at the strikethrough price on
05-03-2026

$ 84.99 USD
Free Shipping on orders $49 and up
The plastic thermostat cover in your BMW is a known point of failure. Throughout years of repeated contact with hot coolant, the plastic can crack and cause massive coolant leaks and potential overheating. Eliminate one of the weak links in your cooling system with a replacement aluminum thermostat housing. By installing this aluminum unit, you have no worries as far as plastic housing cracks go
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Rein Thermostat - 88�C - E30, E34, E36, Z3
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591800
Part#: 11537511580
In Stock at Vendor
$ 37.99 USD
Free Shipping on orders $49 and up
Common point of failure in the cooling system.
Thermostat With Housing
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:582356
Part#: 11537509227
Ships in 1 Business Day
$ 89.99 USD
Free Shipping
$ 89.99 USD
Free Shipping
Stop leaks before they start with this new Thermostat With Housing from Rein.

Rein - Corporate Logo
T#:591144
Part#: 11531265084
Ships in 3 Business Days
$ 2.99 USD
Free Shipping on orders $49 and up
This O-ring seals the thermostat to the cylinder head.

Rein Thermostat - 92C
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:34114254
Part#: 11537511083
In Stock
$ 11.99 USD
Free Shipping on orders $49 and up

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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