🔋 Cummins 1492457 Onan Fuel Filter: Optimal Performance and Efficiency Guaranteed Review

Perfect fit. If replacing the alternator from the inside, make sure the tip is on before replacing the fuel pump. I accidentally filled my filter with dirt by installing it with the fuel pump. Yes, you must remove/install from the outside of the alternator housing. I changed the fuel pump so I decided to install it to bleed everything.

I had to remove the Microlite 4000 from my 1999 Fleetwood motor home to replace the starter motor. I decided to replace the working universal fuel pump and filter at the same time. I used an Airtex pump and this filter for a perfect fit. In my case I don't think the filter can be replaced without removing the alternator. There is no way to get a spare wrench on the pump to loosen and retighten the filter. The filter is expensive but worth the money. Delivery was quick.

It worked great on my Onan QG4000 RV Generator in combination with an Airtex fuel pump. Do yourself a favor and have a technician install the pump and filter on the outside of the alternator housing when you're done with the replacement. It is very difficult to get to the factory as you have to carefully remove a very expensive control board. The guy who made mine put a new one on the outside of the alternator housing. It heats up a lot less, which should help with longevity, but best of all…