420236501 Timing Chain Tensioner Guide for Sea-Doo LTD 18-300 1630 2026

Timing Chain Tensioner Guide for Sea-Doo

This timing chain tensioner guide is an aftermarket replacement component that keeps the timing chain aligned and tensioned on Sea-Doo 1630 engine applications, with the OEM cross-reference 420236501.

Overview

This timing chain tensioner guide is built to replace a worn or damaged guide on Sea-Doo 1630 engine applications, helping maintain proper chain alignment and tension for stable valve timing. As a direct cross-reference to 420236501, this timing chain tensioner guide gives riders a dependable option for routine engine refresh or rebuild work. It suits owners and mechanics servicing Sea-Doo LTD 18-300 platforms who want a straightforward replacement fit.

Built For Performance

• Cross-references OEM part number 420236501 for straightforward replacement
• Guides the timing chain to keep alignment consistent through the engine cycle
• Maintains chain tension to reduce rattle and premature wear
• Constructed for durability in the high-heat environment of a marine engine bay
• Designed for the Sea-Doo 1630 engine family
• Suits rebuild, refresh, and preventive maintenance work

Fits These Machines

• for Sea-Doo LTD 18-300 1630

On-The-Job Use

• Timing chain service during top-end or full engine rebuilds
• Replacing a scored or cracked guide found during teardown
• Preventive maintenance on high-hour Sea-Doo 1630 engines

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: No, this is an aftermarket timing chain tensioner guide that cross-references OEM number 420236501. It is designed as a direct replacement for the listed application.

Q: When should a timing chain tensioner guide be replaced? A: It is commonly replaced during timing chain service or whenever the guide shows cracks, deep grooves, or wear during inspection. Replacing it alongside the chain and tensioner helps maintain stable valve timing.

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