420850500 Oil Filter Cover O-Ring for Sea-Doo Fish 21-230 1630 2025-2026

Oil Filter Cover O-Ring for Sea-Doo

This oil filter cover O-ring for Sea-Doo personal watercraft seals the oil filter housing to prevent leaks, and it carries the OEM cross-reference 420850500.

Overview

This oil filter cover O-ring is a replacement sealing ring made for the oil filter housing on select Sea-Doo 1630 engine models. The O-ring for Sea-Doo watercraft creates a tight seal between the filter cover and housing so oil stays where it belongs during operation. It suits riders performing routine maintenance or rebuilds who need a dependable replacement seal for their oil filter cover O-ring.

Built For Performance

• OEM cross-reference number 420850500 for easy matching
• Formed to seal the oil filter cover against the housing
• Resists oil, heat, and pressure common to marine engines
• Direct replacement for the original cover seal
• Compact, lightweight, and simple to install during filter service
• Sold as a single O-ring for one cover assembly

Fits These Machines

• for Sea-Doo Fish 21-230 1630, 2025-2026

On-The-Job Use

• Routine oil and filter changes
• Oil filter housing reseals after cover removal
• Leak repair at the filter cover mating surface
• Seasonal maintenance on personal watercraft

Specs At A Glance

Good To Know

Q: How often should the oil filter cover O-ring be replaced? A: It is best replaced whenever the filter cover is opened for service or if any seepage appears at the housing. A fresh O-ring helps maintain a reliable seal.

Q: Does this O-ring require any special tools? A: No special tools are needed beyond standard hand tools for removing and reinstalling the filter cover. Lightly lubricating the O-ring before fitting helps it seat evenly.

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