cancel
Showing results for 
Search instead for 
Did you mean: 

Onan Microquiet 4000 - Aftermarket Fuel Pumps

Baja_Man
Explorer
Explorer
Hello all-

I believe my fuel pump is bad. My local source for Onan parts is backordered and Onan is backordered due to to C-19 and availability timeframe is unknown.

I see there are MANY aftermarket fuel pumps for this ubiquitous genny.

Have any of you used an aftermarket pump, and if so, what were the results....ex. how long has it been in use, fitment, ability to pump correctly, etc.

Thanks!
2023 GMC, 3500HD, Crew Cab, 6.6L Gas/6 Speed Auto, 4X4, Standard Bed; SRW
2011 Outback 250RS - Anniversary Edition
Equal-i-zer 10K
7 REPLIES 7

ajriding
Explorer
Explorer
eBay is your friend. Yes, lots of cheapo junk, but it works, maybe not as long, or youcan also find OEM parts there.
I do not do Amazon because I do not hate our great country like Amazon does. Support American-loving companies.

Baja_Man
Explorer
Explorer
richconn wrote:
Ordered one from Amazon. Works fine.


Which Amazon one did you get....there are many!
2023 GMC, 3500HD, Crew Cab, 6.6L Gas/6 Speed Auto, 4X4, Standard Bed; SRW
2011 Outback 250RS - Anniversary Edition
Equal-i-zer 10K

Baja_Man
Explorer
Explorer
I'll start with the fuel pump and go there from there.

SMarquez....which Amazon one did you get.....there are many!
2023 GMC, 3500HD, Crew Cab, 6.6L Gas/6 Speed Auto, 4X4, Standard Bed; SRW
2011 Outback 250RS - Anniversary Edition
Equal-i-zer 10K

SMarquez
Explorer
Explorer
I did an amazon carb for my Onan. It worked perfectly when we went out. I would bet your carb is shot.

Baja_Man
Explorer
Explorer
I ordered one from Amazon.....Fingers crossed on quality and reliability
2023 GMC, 3500HD, Crew Cab, 6.6L Gas/6 Speed Auto, 4X4, Standard Bed; SRW
2011 Outback 250RS - Anniversary Edition
Equal-i-zer 10K

jdc1
Explorer II
Explorer II
I bought one from O'Rielley's for under $20. Low psi is all the need to know.

richconn
Explorer
Explorer
Ordered one from Amazon. Works fine.