This kit fits #836086, #838673Replacement parts that fit Grex P645This kit contains Cylinder Cap O-Ring, Piston Driver Assembly, Piston O-Ring, Mini O-Ring and Small Exhaust O-Ring
Replace those worn-out gaskets with new ones. The driver kit is an assortment of common parts that need to be replaced over time due to wear and tear. Driver kit fits P635. This kit contains cap gasket, piston driver, piston o-ring, cylinder o-ring, bumper.