420850500 Oil Filter Cover O-Ring for Sea-Doo RXT XRS 300 1630 2017-2022

Oil Filter Cover O-Ring for Sea-Doo

This oil filter cover O-ring seals the oil filter housing on Sea-Doo personal watercraft, replacing OEM part 420850500 to prevent oil leaks at the cover.

Overview

This oil filter cover O-ring is a direct-fit sealing ring made for Sea-Doo watercraft that use the 1630 engine platform. It seats between the oil filter cover and housing to hold oil under pressure and heat. A practical spare for riders servicing a 2017 to 2022 Sea-Doo RXT or XRS 300.

Built For Performance

• OEM cross-reference 420850500 for straightforward replacement
• Oil-resistant rubber compound suited to hot engine oil contact
• Precise dimensions for a snug seal on the filter cover groove
• Withstands repeated heat cycles without hardening or cracking
• Compact and easy to store as a service spare

Fits These Machines

• for Sea-Doo RXT 300
• for Sea-Doo RXT-X 300
• for Sea-Doo RXT-XRS 300
• for Sea-Doo models equipped with the 1630 engine

On-The-Job Use

• Routine oil and filter changes on Sea-Doo watercraft
• Resealing the oil filter cover after inspection
• Seasonal maintenance before launching for the summer
• Trailside or driveway repairs for DIY riders

Specs At A Glance

Good To Know

Q: How often should this O-ring be replaced? A: Replace it whenever the oil filter cover is removed or if you notice oil weeping around the cover. Inspecting it at every oil change is good practice.

Q: Is this an original Sea-Doo part? A: No, this is an aftermarket O-ring that cross-references OEM part 420850500. Always confirm your engine 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.