PCM 302, GT40 in circulation pump, Some Mercruiser (pt 806490T), Early LT1 in the T-stat housing then moved to cylinder head around 95 (tapered threads are aprox. 3/4″ in diameter). Also used in some PCM GM engines around 2002-05 located in the T-stat housing.
3/4″ wrench size on nut.
MARINE WATER TEMPERATURE SENDING UNIT. FITS MOST PCM 302, ALL GT40 LOCATED IN CIRC PUMP AND SOME MERCRUISERS.
Bin Number (ISBN):102506
