420236501 Timing Chain Tensioner Guide for Sea-Doo Sport 21-230 1630 2022-2025

Timing Chain Tensioner Guide for Sea-Doo

The Timing Chain Tensioner Guide for Sea-Doo keeps the timing chain aligned and tensioned on the Rotax 1630 engine, and it matches OEM cross-reference 420236501.

Overview

This timing chain tensioner guide is a direct-fit replacement for the Sea-Doo Sport 21-230 1630 platform. It holds the timing chain in proper alignment and maintains tension so cam timing stays accurate through the rpm range. It suits riders and mechanics servicing the 1630 engine in 2022 through 2025 models.

Built For Performance

• Constructed from wear-resistant material for long service life against continuous chain contact
• Precision-formed guide surface keeps the timing chain tracking straight
• Matches OEM reference 420236501 for straightforward replacement
• Built to withstand the heat and load of the Rotax 1630 engine bay
• Maintains consistent chain tension to protect cam timing

Fits These Machines

• for Sea-Doo Sport 21-230 1630, 2022-2025

On-The-Job Use

• Timing chain service on the Rotax 1630 engine
• Top-end rebuilds and cam timing repairs
• Routine maintenance on 2022 through 2025 Sea-Doo Sport models
• Replacing a worn or grooved tensioner guide

Specs At A Glance

Good To Know

Q: Does this guide fit both the 21-230 and 18-300 Sport models? A: This listing covers the Sea-Doo Sport 21-230 1630 for 2022 through 2025. Confirm your model and engine code before ordering.

Q: Should the tensioner guide be replaced with the chain? A: Replacing the guide alongside the timing chain is common practice during a rebuild. Inspect the guide surface for grooves or flat spots during teardown.

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