Set of 3 Sea-Doo & Williams Rotax 1503 Injectors – Ref. 420874846
€105,00 EUR
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Set of 3 Sea-Doo & Williams Rotax 1503 Injectors – Ref. 420874846
€105,00 EUR
Ships within 1 to 2 days for available items.
Free shipping to France and Europe - DDP for the USA*
Free returns.
Unsure about OEM compatibility? Use our tool: Find my part and our Technical Resources.
* Batteries not included
Description
This set of 3 fuel injectors, OEM part number 420874846, is designed for the three-cylinder Rotax 1503 engines in the Sea-Doo and Williams tenders listed below. The injectors supply fuel to the engine. This replacement set allows you to service all three cylinders when restoring the fuel injection system, after diagnosis and verification of the original part number.
Technical Specifications
- OEM part number: 420874846
- Manufacturer part number: not specified
- Type: replacement fuel injectors
- Engine: Rotax 1503, 3 cylinders
- Condition: New
- Packaging: set of 3 injectors
- Weight: 500 g, value recorded for the product
- Regulated substances: information not provided
- Installation: direct replacement according to the original specification; follow the workshop procedure and check the tightness of the system before returning it to service
Compatibility
Sea-Doo:
- 2017 – Sea-Doo GTI (215 / 255 / 260 HP)
- 2017 – Sea-Doo GTX (215 / 255 / 260 HP)
- 2017 – Sea-Doo GTR (215 / 255 / 260 HP)
- 2017 – Sea-Doo GTS (215 / 255 / 260 HP)
- 2017 – Sea-Doo Wake (215 / 255 / 260 HP)
Williams Tenders:
- Williams 435 Sportjet (Rotax 1503)
- Williams 400 Sportjet (Rotax 1503)
- Williams 460 Sportjet (Rotax 1503)
- Williams 520 Sportjet (Rotax 1503)
⚠️ Always check your serial number (VIN) and the original OEM part number before ordering to confirm exact compatibility with your model.
Why Replace Fuel Injectors?
A dirty or faulty injector can disrupt the fuel supply to a cylinder and the engine's operation. The following symptoms may warrant an inspection of the fuel injection system, but do not identify an injector as the cause of the failure on their own:
- Difficult starting or irregular idling
- Misfiring and loss of power
- Unusual fuel consumption
- Leakage or loss of tightness observed on an injector
Check the condition of the fuel system during maintenance and before returning it to seasonal service. Have the injectors checked if an anomaly is detected and replace defective components after diagnosis. Take this opportunity to inspect the filtration, fittings, and seals according to the manufacturer's procedure.
See Also – Other Fuel System Parts
These two products are tagged for the Rotax 1503 and the four Williams models concerned. However, check the part numbers and compatibility specific to each specification before ordering.
 Rotax Sea-Doo & Williams Fuel Pump – OEM 275500996 |
 Williams & Sea-Doo Fuel Pump Strainer – Part No. 270600113 |
