Important: the diaphragm I received was multi-layered. There were several independent sheets of what appeared to be nylon reinforced rubber. This is exactly what I wanted. Multiple layers add redundancy and increase longevity and reliability of the part. Ethanol in gasoline dries out rubber parts. Should one of the layers fail due to ethanol exposure, there will be a new untouched layer beneath. I think there was a total of 3 layers, if memory serves. Also, nylon reinforced is important. Rubber alone is not strong enough and will crack and separate from the strain in this application. The nylon or cloth fiber embedded in the rubber helps hold it together so it does not separate from the high speed and load on it inside a mechanical fuel pump. Overall, I have 0 complaints about the part's construction or quality. It met all of my requirements, and in fact I was surprised that it was nylon reinforced, even though I felt that should be a minimum requirement. This was a little more than I was hoping to spend on this item, but it works perfectly, so I am very happy. This part fits and matches the diaphragm I removed from my K241. I may order this item again for a Wisconsin THD if this will fit.Read full review
Verified purchase: Yes | Condition: New
Its nice to be able to rebuild the original pump on my odd ball antique engines that I cant get parts for. Works great with Onans and Kohler too!
Verified purchase: Yes | Condition: New
Exact fit, fair price and easy to install. Works great!!!!!
Verified purchase: Yes | Condition: New
Repair only what needs repair. This is the main working part of the fuel pump. This is what is most likely to fail. These parts are a fraction of the cost of the full repair kit. Prompt delivery. Generator is now running.
Verified purchase: Yes | Condition: New
Perfect fit, easy to replace, fixed the problem with my kohler engine...
Verified purchase: Yes | Condition: New
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