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Review on ๐ŸŒก๏ธ Engine Coolant Thermostat Water Inlet Assembly: GM Genuine Parts - 15-11057 by Robert Correa

Revainrating 5 out of 5

Works great

The thermostat has a slightly different design than the original. I looked at it and thought for a while if it was worth using. The original thermostat had holes in the plate covering the hole. After reporting that the new design had ribs to keep the plate from covering the hole, I knew we could move on. It fits perfectly. The black ring on the thermostat is also the gasket of this assembly. As this assembly is a replacement for previous models, it comes with new screws.

Pros
  • Works great for me
Cons
  • Not sure