This high-quality Topran thermostat with housing is a direct replacement for OEM part number 11531743017 and Topran reference 500549. Also known as a coolant thermostat or engine thermostat housing, it regulates engine temperature and ensures optimal cooling system performance.

Key Features:

* Direct replacement for OE part number 11531743017
* Topran reference number: 500549
* Thermostat with housing / coolant thermostat assembly
* Maintains correct engine operating temperature
* Improves cooling system efficiency
* Durable construction for long service life

Compatible With:

* BMW 3 Series Compact (E36) - 318ti (1996-1999)
* BMW 3 Series (E36) - 318is (1992-1998)
* BMW 3 Series Coupe (E36) - 318is (1992-1999)
* BMW Z3 (E36) - 1.9i (1995-1999)

Compatible Engine Codes:

* M44B19, M42B18

Year Range:
1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003

This is an aftermarket replacement part, not a genuine BMW component.

Shipping

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Most orders are processed within 24 hours (Monday to Friday) and shipped via overnight service for small items.

Larger items typically arrive within 1-2 business days.

You'll receive a tracking link as soon as your order is collected for delivery.

✅ Fitment Confirmation


European vehicles can vary significantly by build date, trim level, and factory options.
That’s why we ask for your rego at checkout.

Our team manually verifies every order against official manufacturer parts catalogues to ensure 100% correct fitment before dispatch.

You don’t need to decode VIN numbers or production splits — we handle the technical side for you.
To qualify for our 100% Fitment Guarantee, please provide your rego when ordering.

Orders placed without a rego or VIN cannot be covered under our Fitment Guarantee.

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