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Boundary billet oil pump gear for Nissan RB26 engines is machined to fit OEM housings with an 81mm bore and replaces the factory rotor with a high-quality billet unit. Its precise machining ensures correct fitment and tooth engagement in the stock housing, offering a reliable option for rebuilds or maintenance where improved durability and consistent oil flow are desired without modifying the pump case.
Boundary Nissan RB26 Billet Oil Pump Gear (Fits OEM Housing 81mm)
