420811851 Oil Pump Cover Plate for Sea-Doo Base 16-170 1630 2026

Oil Pump Cover Plate for Sea-Doo

This oil pump cover plate is a direct-fit replacement for the original 420811851, designed to seal and protect the oil pump assembly on select Sea-Doo 1630 engine platforms.

Overview

This oil pump cover plate for Sea-Doo keeps the oil pump properly sealed so lubrication stays consistent across the 1630 engine. Built as a direct-fit replacement for OEM part 420811851, this oil pump cover plate installs without modification. It suits riders performing routine maintenance or rebuilding the oiling system on their personal watercraft.

Built For Performance

• Direct-fit replacement for OEM part number 420811851
• Seals the oil pump housing to prevent leaks and pressure loss
• Constructed for reliable service in marine engine environments
• Precision mounting points for a secure, correct alignment
• Compatible with the 1630 engine oil pump assembly

Fits These Machines

• for Sea-Doo Base 16-170 1630, 2026

On-The-Job Use

• Routine oil pump servicing on personal watercraft
• Engine rebuilds requiring replacement of the cover plate
• Correcting oil leaks or sealing issues at the pump housing
• Keeping oil pressure stable during extended water use

Specs At A Glance

Good To Know

Q: Does this cover plate replace the factory part directly? A: It is designed as a direct-fit replacement for OEM part 420811851 on the specified 1630 applications. Confirming your model and serial number before ordering is recommended.

Q: Can I install this without special tools? A: Because it mounts with standard fasteners at the oil pump housing, basic hand tools are typically sufficient. Have a service manual on hand for correct torque values.

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