Sea-Doo & Williams Knock Sensor – Ref. 420664031
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€50,34 EUR
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Sea-Doo & Williams Knock Sensor – Ref. 420664031
€50,34 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
Knock sensor (noise sensor / knock sensor), OEM part number 420664031, for Sea-Doo jet skis and Williams personal watercraft equipped with Rotax 903, Rotax 1503 or Rotax 1630 engines. Standard replacement part designed to restore the knock detection system. Check the compatibility below and compare the part number with your original part before ordering.
Compatibility
Sea-Doo Compatibility:
- Spark (2Up, 3Up, Trixx)
- GTI (Standard, SE, Rental, 90, 130, 155, 170)
- GTS (Standard, Rental)
- GTR (215, 230, X 300)
- GTX (Standard, S, SE, Limited, 155, 170, 215, 230, 255, 260, 300, 325)
- RXP / RXP-X (255, 260, 300, 325)
- RXT / RXT-X (215, 255, 260, 300, 325)
- Wake / Wake Pro (155, 215, 230)
- FishPro (Scout, Sport, Trophy, 170)
- Explorer Pro (170, 230)
Williams Personal Watercraft Compatibility: check the technical articles for each model to identify your version.
- Williams 280 Minijet
- Williams 285 Turbojet (from 2019)
- Williams 325 Turbojet (from 2019)
- Williams 345 Sportjet
- Williams 395 Sportjet
- Williams 435 Sportjet (Std, Rotax ACE 903)
- Williams 435 Sportjet (Sport, Rotax ACE 1503)
- Williams 435 Sportjet (Sport, Rotax ACE 1630)
- Williams 400 Sportjet
- Williams 460 Sportjet (Rotax 1503)
- Williams 460 Sportjet (Rotax 1630)
- Williams 520 Sportjet (Rotax 1503)
- Williams 520 Sportjet (Rotax 1630)
⚠️ Always check your serial number (VIN) and original OEM part number before ordering to confirm exact compatibility with your model.
Specifications
- OEM part number: 420664031
- Type: knock sensor (noise sensor / knock sensor)
- Application: Sea-Doo jet skis and Williams personal watercraft according to the listed compatibilities
See Also – Other Engine Sensors
These two sensors are related to engine performance monitoring. Check the part numbers and compatibilities specific to each product page before ordering; they are not interchangeable with the knock sensor.
 Sea-Doo / Williams Camshaft Position Sensor – OEM 420664045 |
 SEADOO & WILLIAMS Crankshaft Position Sensor – Part No. 420966575 |
