The BMW Thermostat Wahler 11537511580, manufactured by Wahler (part number 4236.88 D / 423688D), is an OE supplier component designed for precise thermal regulation in select BMW models. Engineered to original equipment standards, this Wahler thermostat is equipped with an O-Ring and calibrated for an 88°C operating temperature, ensuring optimal engine performance and reliability.
Key features:
- OE Supplier: Ensures fit and function identical to factory specifications
- Includes O-Ring: For secure and leak-free installation
Verified fitment includes select 1991-1992 BMW 318i, 1991 BMW 318is, select 1992-1995 BMW 325i/325is, 1996 BMW 328i/328is, 1991-1995 BMW 525i, 1995-1999 BMW M3, and 1998-2000 BMW Z3 models, as detailed per engine, body, and chassis. Always verify gasket requirements for your specific application.
Choose the Wahler 11537511580 thermostat for trusted OE quality and application-specific reliability in your BMW’s cooling system.
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These products share the same OE reference. Select your vehicle to confirm exact fitment.