Sea-Doo Timing Chain Tensioner Guide – Ref. 420898042 / 420236541 – GTI GTR GTX RXP RXT Wake 130-300 HP
Description
The camshaft chain tension guide is an internal component of the Rotax 4-TEC engine that maintains correct timing chain tension. Without this guide in good condition, the chain can loosen, causing engine knocking and, in extreme cases, severe engine damage. This aftermarket replacement part, made of high-strength ABS material, is compatible with original OEM references 420898042 and 420236541. It is recommended for preventive replacement during any timing system maintenance or as soon as abnormal engine noises appear.
Technical Specifications
- Main OEM Reference: 420898042
- Alternative OEM Reference: 420236541
- Type: Camshaft Chain Tension Guide
- Material: High-strength ABS
- Condition: New (aftermarket)
- Packaging: Sold individually
- Weight: 0.31 kg
- Regulated Substances: None
- Installation: Direct replacement, no modification required
Compatibility
This tension guide is compatible with Rotax 4-TEC engines found in the following Sea-Doo models:
- GTI 130 / GTI SE 130 / GTI SE 155
- GTR 215 / GTR-X 230
- GTX 155 / GTX 215 / GTX 230 / GTX 260 / GTX 300
- RXP 155 / RXP 215 / RXP-X 255 / RXP-X 260 / RXP-X 300
- RXT 155 / RXT 215 / RXT-X 255 / RXT-X 260 / RXT-X 300
- Wake 155 / Wake Pro 215 / Wake 230
⚠️ Always check your serial number (VIN) and the original OEM reference before ordering to confirm exact compatibility with your model.
Why Replace the Chain Tension Guide?
The camshaft chain tension guide is subject to significant mechanical and thermal stress with every use. A worn or cracked guide can lead to timing misalignment and irreversible engine damage. Common symptoms of a faulty guide include:
- Knocking or chain noise when cold starting
- Persistent metallic noise during acceleration
- Check engine light on (timing fault code)
- Unexplained loss of power or engine jerks
We recommend inspecting this guide during every 50-hour service or as soon as suspicious noises appear, to prevent costly engine failure on your Sea-Doo jet ski.
See Also – Other Compatible Rotax 4-TEC Engine Parts
Sea-Doo 4-TEC OEM Timing Chain – Ref. 420898042 – 130-300 HP |
Sea-Doo GTX RXP RXT GTI GTR 3 Fuel Injector Kit – Ref. 420874000 / 0280158383 |