Product Description
New style GM housing (3 bolt). 1998 and up MPI (exception being some TBI used old triangular style housing thru 2002).
Bin Number (ISBN): 30712 Base gasket sold separately (click here)
CHEVROLET THERMOSTAT HOUSING 531402 1 PIECE NLA.-USE 531067S THERMOSTAT HOUSING
USE 1/2" PIPE PLUGS AND RM0121 GASKET. (Remove hoses going to elbow fittings in intake. Install 1/2" pipe plugs in place of those fittings)
USE 1/2" PIPE PLUGS AND RM0121 GASKET. (Remove hoses going to elbow fittings in intake. Install 1/2" pipe plugs in place of those fittings)