If your car is leaking coolant around the thermostat, or your thermostat housing is broken or cracked, then this could be your solution.


  • Engine Water Outlet
  • Includes Thermostat
  • Replaces dealer part number: 11 53 1 743 017, 11531743017
  • Direct replacement
  • Built to strict quality control standards

Over time from thermal expansion and contraction the mating surfaces on the housing can warp or crack. If you are experiencing any of these issues replace your thermostat housing with our direct replacement part.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

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Vehicle Fit

  • 1996-1999 BMW 318i Thermostat with Housing Assembly
  • 1996-1997 BMW 318iC Thermostat with Housing Assembly
  • 1996-1997 BMW 318iS Thermostat with Housing Assembly
  • 1996-1999 BMW 318ti Thermostat with Housing Assembly
  • 1996-1998 BMW Z3 Thermostat with Housing Assembly L4 1.9L
Part #: 1AEMX00308

Ships Same Day for orders placed by 4 P.M. ET