420811851 Oil Pump Cover Plate for Sea-Doo Sport 18-300 1630 2026

Oil Pump Cover Plate for Sea-Doo

The Oil Pump Cover Plate for Sea-Doo, part number 420811851, seals and protects the oil pump assembly on 1630 engine platforms so lubrication stays contained and consistent.

Overview

This oil pump cover plate for Sea-Doo is a replacement component designed to seal the oil pump housing on 1630 engine models. It keeps the pump protected from debris and helps maintain proper oil pressure for reliable engine lubrication. A practical part for riders servicing their own Sea-Doo watercraft.

Built For Performance

• Direct replacement for OEM part number 420811851
• Fits 1630 engine oil pump assemblies
• Seals the pump housing to help maintain oil pressure
• Constructed for marine engine environments
• Simple bolt-on installation for routine maintenance

Fits These Machines

• for Sea-Doo Sport 18-300 1630 (2026)

On-The-Job Use

• Routine oil pump service and rebuilds
• Replacing a worn or damaged cover plate
• Engine maintenance on 1630 powered watercraft

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: No, this is an aftermarket oil pump cover plate made to fit Sea-Doo 1630 engines and cross-references OEM part 420811851.

Q: Does this fit every 1630 model year? A: This plate is listed for the Sport 18-300 1630 in the 2026 model year, so verify your model and serial number 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.