L10028 or L10183 Check the Purolator application guide to make 100% sure.
onan marquis 5500 generator
In the related links, there's a link to the NAPA buyer's guide for their 1374 oil filter, which is the NAPA equivalent to the Carquest 85374.
1374 just drop the first number, seriously
NAPA Filter part #1056 will cross reference to Fram PH8172. In my case I'm applying it to a Kohler engine in a Lincoln Electric Welder/Generator Ranger 250.
Napa gold filter number 3011
There may be no cross reference to Napa from this brand filter. If your Napa dealer does not list the filter there is none. You may be able to find a Napa filter by using the model of the Kubota or the engine. More information is better.
The Napa filter is 1036 , The wix filter is 51036, Both made by the Gard company.
wix 51358 napa 1358 same filter
Napa oil filter 1311 equivalent to Fram pH 7328
Napa's 1515 filter is Carquest's 85515 filter. Various Ford vehicle application.
Call a NAPA dealer
NAPA 21372