Carburetor Carb with Gaskets for Onan Cummins Generator & Microquiet 4000-Watt 4KYFA26100 4KYFA26100P 4KYFA26100K Replace# A042P619, A041D736, 146-0785

It was a pain replacing the older carb, but this new one was identical and fit perfect. I had my doubts that my generator would actually work, because I really did struggle installing it. To my surprise, it fired right up. Its been 4 months and I run it for about 15 minutes once a month since it is now winter. My generator is a ONAN QG 4000.

Great product. Just what I needed at a great price & quick delivery!

Tried two of these on a running unit that was running a little rough, but ran fine. Installed the first one and it kept flooding out. Installed the second, and same result. After this, I tried another from a different vendor and voila. Ran great. Spend the extra money and get a good one. These $30 carbs are junk.

I have an Onan 4000 generator on a Class C RV. The exact model # matched the posted description. My generator never would start/stay running longer than 2 seconds. It ran fine last year. I suspected a fuel problem, it would run for 2 seconds and shut down. I got the code 36. I used starter fluid and it would run for 3-4 seconds. I switched the fuel pump and it would do the same thing. I bought this carburetor, installed it and it started right up. I ran it for 45 minutes with the AC running. It worked great. Keep this spacer, you'll have to reuse it. I added a fuel shut-off valve to run the gas out. I'll update if it doesn't work long term.

Perfect & described. Prompt delivery.

As the headline says... but I intended to use the bottom bowl and the bottom jet on my current OE Cummins carb. Won't fit! the jet is ever so slightly longer so the bowl won't seal to the carb body. So... if you buy this, plan on a total carb removal and replacement, which is a more tedious job.

I had purchased a carb for my Onan 4000Generator because I forgot to start mine for six months and the carb gummed up. After install generator still wouldn't run. Spent a good 10 hours checking everything over then someone told me about bad carbs from Amazon. So I purchased and installed one and the generator started up first try. Sending the other back as defective and will probably get another of this one just to have “on hand” for another year’s possible problem.

Not difficult to remove old carb and install this unit. Seriously recommend watching a few Youtube videos for helpful hints like use your phone camera to see the bolts in the air cleaner assembly and use a dab of form a gasket to hold gaskets in place during assembly. Genset fired right up and did its job after adjust for altitude here in NW Arizona.Only negative was the fuel filter, not the correct type for my Cummins Onan 4KY. Save it for your lawn mower.