Genuine Honda pump casing cover for the WB20, part number 78101YG3000.
The casing cover closes the front of the volute and is what comes off to reach the impeller for clearing a blockage or checking wear. It takes the brunt of any debris that gets past the strainer, and a cover that is pitted or distorted will not seal — which shows up as a pump that loses prime and cannot get it back.
- Genuine Honda part 78101YG3000
- Pump casing cover for the Honda WB20
- Provides access to the impeller
- Direct replacement
- Restores sealing and priming performance
