TP ENGINEERING Oil Pump Assembly Big Twin 45-0155-12

Filter your oil before it enters your motor, Complete with fittings that send oil to the filter before pumping it through your engine, Allows the use of 10-micron oil filters for additional protection, Machined from 6061 T-6 aluminum billet and polished to a mirror finish, Patented three-valve system delivers oil to the crankshaft at idle, Stainless steel check-valve eliminates wet-sumping upon startup; positively will not leak oil into lower end during storage, No provisions for primary or rear-chain oiling, Replacement gasket kits include cover gasket, body gasket, snap rings and keys, U.S. Patent #6,230,680