W Series Quiet Motor Kit 385311423

Original price was: $349.99.Current price is: $341.00.

Eliminate the “thump thump” sound when you flush with the W Series Quiet Motor Kit (Whisper Conversion Kit). This innovative motor sets a new standard in marine sanitation, ensuring a quiet and effective flush. Ideal for converting all S-series and T-series pumps, the W motor kit also includes new bellows to prevent pump knocking noise. For a complete upgrade, the kit includes a W Motor, Eccentric, O-Rings, Shoulder Bolt, Bellows, Two Bellow Clamps, and new screws. Install the W motor kit for a quieter, smoother operation in your marine sanitation system.


Get rid of the “thump thump” sound when you flush. Now, with the W Series Quiet Motor Kit  (Whisper Conversion Kit or W motor), you can flush it away effectively and quietly. This motor sets a new standard in marine sanitation. All S-series and T-series pumps should be converted to the new W motor. When replacing older motors, you should replace the bellows as well to prevent the pump knocking noise. The sound is due to the diameter of the old bellows. To avoid this, use the complete W motor kit for all S and Q motor replacements.

Installation Instructions

Parts Included

  • W Motor
  • Eccentric
  • O-Rings
  • Shoulder Bolt
  • Bellows
  • Two Bellow Clamps
  • New screws for the Motor


Sealand numbers: 385311423 / 311423 / 385311424 / 311424
Legacy number: 600344812 / 600344824 
Dometic SKU: 9108558868 / 9108558869

Additional information

Weight 6 lbs
Dimensions 10 × 6 × 6 in

12 Volt, 24 Volt

You may also like…