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Abnmarine · 05-10-2010, 06:51 PM

I was searching for a oil filter for the Onman 5500 generator and came across this. Can anyone confirm if this is correct?

WikiAnswers - What oil filter for onan marquis 5500 generator

Another member has informed me of what oil to use (Mobil 1 10-40), the appropriate oil filter wrench (0420-0577) and the oil filter (Onan 122-0836, NAPA 7398, WIX 57398).

RinkersRanch · 05-10-2010, 07:48 PM

The Onan and Wix #'s match the numbers for my generator. I should have the same setup for my 2002 Pace Arrow. 5500 Onan Marquis. I don't know about the filter wrench. I do not have that #.

UFO Pilot · 05-10-2010, 08:34 PM

This is the info I have found for my Onan 5500 Gold.

"Onan Cummins" Parts:

1) Air Cleaner element (1) - #140-3116 ($11.08)

2) Spark Plug (you need 2) - #167-1638 ($3.44 ea)

3) Fuel filter new style)(1) - #149-2341-01 ($12.10) 13.31

4) Adapter, Fuel Line
*(1) - #A026E529 ($18.06) 20.86
*permanently replaces the upper fuel filter

5) Oil Filter (1) - #122-0836 ($8.74)

Onan Cummins also sells a thin wall oil filter removal tool
Part # 420-0577 ($6.18)

DAN L · 05-11-2010, 02:19 AM

Quote:

Originally Posted by Abnmarine

I was searching for a oil filter for the Onman 5500 generator and came across this. Can anyone confirm if this is correct?

WikiAnswers - What oil filter for onan marquis 5500 generator

Another member has informed me of what oil to use (Mobil 1 10-40), the appropriate oil filter wrench (0420-0577) and the oil filter (Onan 122-0836, NAPA 7398, WIX 57398).

i installed 2 quarts of amsoil 10w-40 synthetic oil. 2 quarts will not fit until you start the genny and run it for a few minutes to leak check it. then i poured in the balance of 2 quarts. i used the napa 775-9018 skinny 3 fingered oil filter wrench with the onan 122-0836 filter. it worked ok.

CJ7ole · 05-11-2010, 05:23 AM

I have the Onan Marquis 7000 and even after running it for a few minutes, couldn't get 2 quarts in (Wix filter, Mobil 10W-40 and Champion plugs). PO used it a lot, 500 hours in 6 years, I haven't used mine yet in a campground, just as a backup genset for use at home during 2 power outages, 50 hours total in 2 years. I bought one of those plier style wrenches.