319633 OMC GASKET CYLINDER HEAD

OEM OMC Johnson/Evinrude cylinder head gasket (0319633) seals the powerhead to cylinder block on 25 and 35 HP 2-cylinder outboard engines from 1976-1978. Replaces part 0777428. Also equivalent to Sierra Marine 18-2954 and GLM 35840. This critical powerhead gasket prevents combustion gas and coolant leakage, maintaining proper compression and cooling system integrity. List price $29.00. Widely available from marine parts retailers including marineengine.com, Amazon, and eBay. Original equipment construction ensures proper sealing and durability for mid-1970s Johnson and Evinrude small-displacement powerheads.