The Moroso oil pump primer for Ford 289, 302, 390 and 428 engines is a priming tool specified for those Ford small-block and big-block applications. It helps circulate oil through the pump and passages before the engine is started, reducing startup wear. Intended for builders and restorers working on these Ford engines, the primer aids safe first starts by assuring early lubrication.
Moroso Ford 289/302/390/428 Oil Pump Primer