This engine oil pump primer comes complete with the bushing. Designed to fit all Chevy V8 and V6 engines. Includes the bushing to properly pressurize the engine oil valve train. The tool primes the oil pump directly through the distributor hole. For use with a 3/8 inch chuck drill. A must have product for all engine builders. Sold individually. Backed by a limited 30 day factory warranty.Proform Engine Oil Pump Primer 66896Specifications: Feature/Benefit Fits all Chevy V8 and V6 engines. Tool Type Oil Pump Primers Category Tools Description_ABR Pump Primer Description_SHO Oil Pump Primer Description_INV Oil Pump Primer with Bushing Description_INV V8/V6 Chevy Description_DEF Engine Oil Pump Primer Description_ASC Engine Oil Pump Primer with Bushing Description_ASC Fits Chevy V8-V6 Engines Description_ASC Uses 3/8 Drill Description_LAB OIL PUMP W BUSHING CHEVY V8 and V6/90 Description_DES Engine Oil Pump Primer with Bushing Description_DES Fits Chevy V8-V6 Engines Description_DES Uses 3/8 Drill Description_EXT Engine Oil Pump Primer with Bushing Description_EXT Fits Chevy V8-V6 Engines Description_EXT Includes a Bushing To Properly Pressurize The Valve Train Description_EXT Primes The Oil Pump Directly Through The Distributor Hole Description_EXT For Use With a 3/8in. Drill Description_EXT Sold Each Description_MKT This engine oil pump primer comes complete with the bushing. Designed to fit all Chevy V8 and V6 engines. Includes the bushing to properly pressurize the engine oil valve train. The tool primes the oil pump directly through the distributor hole. For use with a 3/8 inch chuck drill. A must have product for all engine builders. Sold individually. Backed by a limited 30 day factory warranty.