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: 19301-PNA-003, 19301PNA003
  • 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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does this thermostat come with an o-ring gasket?
Dave O on Jul 4, 2017
BEST ANSWER: Yes, this comes with a new o-ring!

Vehicle Fit

  • 2002-2006 Acura RSX Thermostat with Housing Assembly
  • 2002-2006 Honda CR-V Thermostat with Housing Assembly
  • 2003-2005 Honda Civic SI Thermostat with Housing Assembly L4 2.0L
Part #: 1AEMX00307