The most reasonably priced component used on the En450a1 454ltd 1985 Usa California Canada Oil Pump(en450ae000001&nami.029479) is the Circlip-type-c,11mm.
The Kawasaki OIL PUMP(EN450AE000001&NAMI.029479) has fourteen products enlisted in the schematic.
The sub assemblies and components that make up this Oil Pump(en450ae000001&nami.029479) include this Pump-assy-oil, the most expensive part.