420850500 Oil Filter Cover O-Ring for Sea-Doo Sport 18-300 1630 2026

Oil Filter Cover O-Ring for Sea-Doo

The Oil Filter Cover O-Ring for Sea-Doo seals the oil filter housing cover to prevent leaks, and it cross-references OEM part number 420850500.

Overview

This oil filter cover O-ring for Sea-Doo provides a reliable seal for the oil filter housing cover on your personal watercraft. It keeps engine oil contained under pressure and protects against seepage at the cover mating surface. Designed as a direct replacement for OEM 420850500, this O-ring suits riders performing routine maintenance on their Sea-Doo.

Built For Performance

• Direct replacement for OEM part number 420850500
• Constructed from oil-resistant rubber compounds
• Maintains a tight seal under engine oil pressure
• Resists heat and degradation from repeated oil changes
• Simple drop-in fit on the oil filter cover

Fits These Machines

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

Specs At A Glance

Good To Know

Q: What is the purpose of this O-ring? A: It seals the oil filter cover to the housing to stop oil leaks at that joint. Replacing it during oil filter service helps maintain a clean, leak-free engine.

Q: How often should the oil filter cover O-ring be replaced? A: It is good practice to replace the O-ring whenever the oil filter cover is removed for filter service. A worn O-ring can flatten over time and lose its sealing ability.

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