420236501 Timing Chain Tensioner Guide for Sea-Doo Speedster 310 1503 2008

Timing Chain Tensioner Guide for Sea-Doo

This timing chain tensioner guide is a direct replacement component made to keep the timing chain of your 1503 engine properly guided and tensioned, cross-referenced to OEM part number 420236501.

Overview

The timing chain tensioner guide is a wear component that keeps the timing chain tracking straight and tensioned on the Sea-Doo 1503 engine. This timing chain tensioner guide helps prevent chain slap, skipped timing, and the costly valve damage that can follow. It is a practical replacement for riders servicing a high-hour 2008 Speedster 310 or any 1503 platform engine.

Built For Performance

• Direct cross-reference to OEM part number 420236501
• Designed to fit the 1503 four-stroke engine family
• Guides the timing chain to reduce wear on chain and sprockets
• Maintains steady chain tension through the rpm range
• Built as a service replacement for high-hour engines
• Sold as a single guide unit

Fits These Machines

• for Sea-Doo Speedster 310 with the 1503 engine (2008)
• for Sea-Doo models running the 1503 four-stroke engine that use part 420236501

On-The-Job Use

• Timing chain service on a high-hour 1503 engine
• Top-end rebuilds where the chain path is being refreshed
• Preventive maintenance before chain noise or timing issues appear
• Shop repair work on Speedster and other 1503-powered boats

Specs At A Glance

Good To Know

Q: Do I need to replace anything else while I am in there? A: It is good practice to inspect the timing chain, sprockets, and the opposing guide for wear at the same time. Replacing worn parts together avoids a second teardown.

Q: How do I know this guide fits my engine? A: Match the OEM number 420236501 stamped or listed for your 1503 engine before ordering. Serial number and production changes can affect fitment.

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