High Dome Piston Kit, Mercury, Mariner, 2.875 Bore Size .030

.030 Oversize High Dome Piston Kit for Mercury/Mariner
OEM: 774-9137A14
Older series engines with .750 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.