Piston Kit Low Dome Mercury Mariner 2.875 Bore Size Standard 774-9137A90

Standard Size Low Dome Piston Kit for Mercury/Mariner
OEM: 774-9137A90
Newer series engines with .650 deflector height for 2, 3, 4 & 6 cylinder inline direct charge engines with original bore size measuring 2.875. All GLM pistons come with a power port hole in the piston and can be used with non port cylinders, all GLM pistons use Keystone rings. All piston kits come with rings, pins and retainers. Low Dome piston kits can replace High Dome piston kits and will not affect engine•s operation.