420236501 Timing Chain Tensioner Guide for Sea-Doo GTI SE 155 1503 2008-2019

Timing Chain Tensioner Guide for Sea-Doo

This timing chain tensioner guide is a direct replacement component that keeps the timing chain properly aligned and tensioned on the Rotax 1503 engine, referencing OEM part number 420236501.

Overview

The timing chain tensioner guide for Sea-Doo keeps the timing chain running true inside the engine, preventing slack that leads to rattle, wear, and skipped timing. This guide is built for riders maintaining a Sea-Doo GTI SE 155 with the 1503 engine and anyone replacing worn timing components during a rebuild. Installed as part of the timing chain system, this guide restores the precise chain path the engine needs to stay in time.

Built For Performance

• Direct replacement for OEM part number 420236501
• Keeps the timing chain aligned and under proper tension
• Reduces chain slap and related wear on engine internals
• Constructed from durable material suited to sustained engine heat
• Fits the Rotax 1503 engine used in the GTI SE 155 platform

Fits These Machines

• for Sea-Doo GTI SE 155 (2008-2019)
• for Sea-Doo models equipped with the Rotax 1503 engine

On-The-Job Use

• Timing chain service and engine rebuilds
• Replacing worn or broken guides after a chain failure
• Routine maintenance on high-hour personal watercraft
• Restoring correct cam timing after top-end work

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: No, it is an aftermarket replacement intended to fit and function like OEM part 420236501. Always compare it against the part you are removing before installation.

Q: Can I install this guide without removing the engine? A: Timing chain guide work typically requires access to the timing chain area, which on many personal watercraft means pulling the engine or opening the front cover. Have a service manual on hand for your model.

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