RV Trip Planning Discussions

Go Back   iRV2 Forums > RV SYSTEMS AND TECHNOLOGIES FORUMS > RV Systems & Appliances
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 08-10-2015, 07:10 PM   #1
Join Date: Nov 2013
Location: Joliet, Illinois
Posts: 99
onan oil filter wrench

i have been searching for an onan oil filter wrench sinch may. i have tried to order on line from any parts rv, Cummins/ Onan Lagrange Il., Cummins/ Onan, Elkhart Indiana, And Camping World. I have come up empty handed every time. I've had no luck at tool and auto parts stores, can't find anything that will work. I'm looking for an oil filter wrench that is used for an Onan 122-0800 Onan oil filter. Any suggestions will be appreciated. thanks

spectrum581 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 08-10-2015, 07:46 PM   #2
Senior Member
dennis45's Avatar
Join Date: Jun 2012
Location: AB
Posts: 7,578
Try one of these. I'm sure about 75% of them will do the job for you. Nothing special about this filter.


2019 Unity LTV CB, pushed by a 2013 Honda CRV, BlueOx Baseplate, Aventa Bar & Patriot Brake
dennis45 is offline   Reply With Quote
Old 08-11-2015, 03:45 AM   #3
Senior Member
mgscott4's Avatar
Workhorse Chassis Owner
Join Date: May 2009
Location: Kansas City, MO./Pollock, LA.
Posts: 1,557
I use a big pair of channel lock pliers.
06 Hurricane 34FT WH W20 Chassis 8.1L 132K, Steersafe, Koni Shocks, DIY Trac Bar, Tri-Metric 2025RV Battery Monitor, 4-6V Batteries, Scan Gauge 2, Crossfires, 735W Solar Morningstar MPPT-60, WG T4 In-Motion Sat, XM Radio, 07 Chevy Malibu Maxx Toad, Falcon 2, Brake Buddy, Escapee
mgscott4 is offline   Reply With Quote
Old 08-11-2015, 04:53 AM   #4
Community Administrator

Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Aug 2009
Posts: 38,018
Amazon.com: Cummins 4200577 Onan Oil Filter Wrench: Automotive

Cliff,Tallulah and Buddy ( 1999-2012 )
CLIFFTALL is offline   Reply With Quote
Old 08-11-2015, 03:02 PM   #5
Senior Member
98FPA's Avatar
Fleetwood Owners Club
Join Date: Nov 2013
Location: Sunrise In Central Nebraska
Posts: 685
spectrum581, when I "googled" the number of my Onan filter wrench (420 0559) I came up with several suppliers. In one of the links it referenced your number oil filter 122-0800 as using this wrench. This wrench does look like the one that Cliff showed in the above link, I'm not sure whether these wrenches are the same however. On my generator this is just about the only way to remove the filter as I don't think there is much room for anything else. Hopefully this will you too.
Ken in Nebraska
98 Fleetwood Pace Arrow, 35U
97 Ford F53 chassis
98FPA is offline   Reply With Quote
Old 08-11-2015, 03:22 PM   #6
Senior Member
Ford Super Duty Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 5,093
From someone who has done hundreds of Onan oil changes, a word of caution. The hole in the cooling shroud is only slightly larger that the filter. Not all end cap wrenches will fit. some of the stamp metal wrenches are beveled at the end and are too large to fit the hole. Most of the aluminum wrenches will go in.
1998 Pace Arrow 35 ft. F53 Ford V10 2012 Honda Civic toad
32 years mechanic at Delta Air Lines 15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
ga traveler is offline   Reply With Quote
Old 08-11-2015, 05:07 PM   #7
Senior Member
Tha_Rooster's Avatar
Join Date: Aug 2008
Location: Georgia
Posts: 5,759
Walmart sells a fram looks like curved pliers works for me.

2007 Fleetwood Revolution LE 40V
Tha_Rooster is offline   Reply With Quote


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel Filter on Onan Generator BPoland Class A Motorhome Discussions 9 06-06-2015 05:33 AM
Onan oil filter wrench spectrum581 Class A Motorhome Discussions 14 05-12-2015 02:08 PM
Onan Quiet Diesel 7500 Oil Change Interval 53block iRV2.com General Discussion 14 04-12-2015 06:44 PM
Onan oil filter change Bilgerat RV Systems & Appliances 13 08-10-2014 09:23 PM

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:01 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.