420956675 Oil Pump Rotor for Sea-Doo Sport 21-300 1630 2026

Oil Pump Rotor for Sea-Doo

This oil pump rotor is a replacement internal engine component for the Sea-Doo Sport 21-300 1630, carrying the OEM cross-reference 420956675.

Overview

The Oil Pump Rotor for Sea-Doo is an internal engine component that drives oil circulation through the lubrication system of the 1630 engine. As a replacement oil pump rotor, it helps maintain steady oil pressure to bearings, the camshaft, and other critical moving parts. This oil pump rotor suits riders and mechanics servicing the Sea-Doo Sport 21-300 1630 introduced in 2026.

Built For Performance

• Manufactured to match the OEM cross-reference 420956675 for direct installation
• Rotor geometry designed to sustain consistent oil flow at operating RPM
• Construction suited to the 1630 engine lubrication circuit
• Replaces a worn or scored rotor that has reduced oil pressure
• Internal component built to withstand continuous high-temperature operation

Fits These Machines

• for Sea-Doo Sport 21-300 1630 (2026)

On-The-Job Use

• Routine bottom-end service on the 1630 engine
• Restoring oil pressure after a rotor failure
• Rebuilds that require fresh internal lubrication components

Specs At A Glance

Good To Know

Q: Can I install this rotor without opening the engine case? A: No, the oil pump rotor sits inside the engine assembly, so installation typically requires disassembly of the cases and should be handled by a qualified technician.

Q: Should the rotor be replaced alone or with other oil pump parts? A: It is often sensible to inspect the mating rotor, shaft, and housing at the same time, since wear between these parts affects oil pressure.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.