DeaconBill 0 #1 Posted May 5, 2015 Onan oil filter part number 122-0800. Does anyone if there is a possibility to convert to a cheaper regular auto oil filter? thanks, Bill. Share this post Link to post Share on other sites
pacer 3,176 #2 Posted May 5, 2015 Very likely... I had a water pump with a Deutz diesel motor and the filter was german made with a cost of around $20! After buying the first one and nearly fainting, on the next change I let the existing filter drain good and cleaned it off and toted it into wallyworld and started opening filter boxes. After only checking 3-4 I found a match -- and it was a common ford filter that only fit about a gazillion vehicles and was about $3. Check the diameter of the gasket and the thread size and of course the physical size and I bet you can find a match. Course one of these horse gurus here on the forum has probably already done that and can give you the info..... Share this post Link to post Share on other sites
DeaconBill 0 #3 Posted May 5, 2015 Pacer, thank you. The friendly clerk down at NAPA set me up with a fine replacement. God bless, Bill. Share this post Link to post Share on other sites
shallowwatersailor 3,214 #4 Posted May 5, 2015 The interchange number for NAPA is FIL 1762 ($11.99), and Wix is 51762 Share this post Link to post Share on other sites
boomers_influence 106 #5 Posted May 5, 2015 club wix makes napa and carquest filters also. napa 1762 is the LONG filter. ( used mainly on the 3" stroke engines ) " 1374 " " short " . carquest 85762 is the LONG filter " 85374 " " short " . i have used these filters for OVER 25 years. thank you. boomer ( the used onan engine parts guy, also NOS and new ) 1 Share this post Link to post Share on other sites
DeaconBill 0 #6 Posted May 5, 2015 Thanks to all for your help and wisdom. God bless, Deacon Bill. Share this post Link to post Share on other sites
boovuc 1,090 #7 Posted May 6, 2015 I would use the NAPA 1642 in the Onans. Unless you don't mind driving a screwdriver through what little of the oil filter is sticking out of the housing. (Like I did earlier this Spring). I had the short NAPA filter in my 416-8 Speed and didn't want to just let it sit on the shelf. I should have left it sit on the shelf although nothing on the frame and surrounding area is going to rust anytime soon! Share this post Link to post Share on other sites
