420850500 Oil Filter Cover O-Ring for Sea-Doo LTD 21-230 1630 2024-2025

Oil Filter Cover O-Ring for Sea-Doo

This oil filter cover O-ring seals the oil filter housing on select Sea-Doo watercraft, cross-referencing OEM part 420850500 to help prevent oil seepage at the cover.

Overview

This oil filter cover O-ring is a replacement sealing ring made for Sea-Doo personal watercraft, designed to sit between the oil filter cover and its housing to keep oil where it belongs. The O-ring cross-references OEM 420850500 so owners can match it to the original part number. It suits riders performing routine oil changes or resealing a weeping filter cover on the 1630 engine platform.

Built For Performance

• Cross-references OEM part number 420850500 for straightforward matching
• Seals the oil filter cover against the housing to help stop oil seepage
• Ring profile sized for the filter cover groove on the 1630 engine
• Rubber construction suited to repeated exposure to hot engine oil
• Compact part that stores easily as a spare in a tool kit

Fits These Machines

• for Sea-Doo LTD 21-230 1630, 2024-2025

On-The-Job Use

• Replacing a hardened or flattened O-ring during an oil and filter service
• Resealing the filter cover after it has been removed for inspection
• Keeping a spare on hand for mid-season maintenance on the water

Specs At A Glance

Good To Know

Q: Should this O-ring be replaced every oil change? A: Many riders replace the filter cover O-ring whenever the cover is removed, since a flattened ring is a common source of small leaks. Inspect it for cracks or hardening and swap it if in doubt.

Q: Is any sealant needed with this O-ring? A: No, the ring is designed to seal on its own once the cover is tightened to spec. Adding sealant can interfere with the groove and make future removal harder.

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