420811851 Oil Pump Cover Plate for Sea-Doo LTD 21-300 1630 2026

Oil Pump Cover Plate for Sea-Doo

This oil pump cover plate replaces OEM part 420811851 to seal and protect the oil pump housing on Sea-Doo 1630-equipped models, keeping lubrication contained during operation.

Overview

This oil pump cover plate for Sea-Doo is a direct replacement sealing component for the 420811851 oil pump position. It closes and shields the oil pump housing so oil flow stays contained and clean. This oil pump cover plate is built for owners servicing a Sea-Doo LTD 21-300 1630 who need a properly cross-referenced replacement part.

Built For Performance

• Direct cross-reference to OEM part number 420811851
• Seals the oil pump housing against leaks and debris
• Made to match the original mounting pattern
• Designed for the 1630 engine oil pump assembly
• Straightforward bolt-on replacement for a worn cover

Fits These Machines

• for Sea-Doo LTD 21-300 1630 (2026)

On-The-Job Use

• Scheduled oil pump service on 1630 watercraft engines
• Repair after oil seepage at the pump housing
• Refresh and rebuild work on LTD 21-300 1630 models
• Preventive replacement during seasonal maintenance

Specs At A Glance

Good To Know

Q: Are new gaskets or seals included with this cover plate? A: The listing covers the cover plate itself, so order any gaskets or seals separately if your service calls for them.

Q: Will this fit other Sea-Doo 1630 models? A: It is referenced to the 1630 oil pump position, but confirm your model and serial number match part 420811851 before ordering.

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