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Review on Dorman 902-1022 Engine Coolant Thermostat Housing: Efficient Temperature Regulation for Optimal Engine Performance by David Caldwell

Revainrating 3 out of 5

Get ready to craft.

Gasket leak due to wrong gasket surface. I had to drain the system, remove the body and file the mating surfaces to the correct ones. It is ok if you check and level the surface BEFORE installation. I would buy it again but next time I will attach a file so I can test before installing. Another step toward perfect precision is to double-tap a sheet of sandpaper to the table saw table and slide the mating surface of the pad over the paper until the surface is just right.

Pros
  • Engine cooling and climate control
Cons
  • Some problems