Those first moments that an engine runs prior to building oil pressure are when damage can easily occur. These oil pump primer kits let you spin the oil pump with a drill motor and bring up the oil pressure prior to starting the engine. This prevents unnecessary wear or damage to rotating, reciprocating, and valvetrain components. These rugged primer shafts are rated at 170,000 psi to ensure extended service life. They also feature a special billet aluminum sleeve that accurately positions the shaft and keeps it from wobbling. This oil pump primers make it easy to get oil to the top of your engine. They are designed to fit in your distributor hole and require no modifications to use. They feature a billet aluminum adjustable collar and black oxide coated steel shaft.