Engine Block Heater. (1-11/32 Dia. 9/64 Width), [ID=M34.65 THK=3.60], 1-11/32 Diameter 09/64 Width, 1-11/32 Diameter 9/64 Width, 1-11/32 Diameter, 9/64 Width, 1-11/32 x 9/64, 1-11/32X9/64, 9/64 inch width, 9/64 Width, Engine Block Heater (1-11/32 Dia. 9/64 Width), ID=M34.65 / THK=3.60, m34.65 3.60, M34.65 3.60.