RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Tiffin Owner's Forum
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 09-20-2020, 06:23 AM   #1
Junior Member
Join Date: Sep 2020
Posts: 20
2000 Allegro Tiffin Bus M37 - Air fitting

In the front of my bus beside the generator is an air coupler. It is not a standard industrial fitting, it is not a standard automotive fitting, it is not a standard gas fitting..... I do not know what will fit it....

Has anyone else ran into this problem?

What is the correct fitting that will work with this coupler? I would like a fitting that is female on the hose side and male on the coupler side...

Thank you for your help
PastorB 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 09-20-2020, 08:44 AM   #2
Senior Member/RVM #90
MSHappyCampers's Avatar

Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 44,479
Hi ! Welcome to IRV2! We're sure glad you joined us!

Don't know why that would not be a standard coupler! Have fun and keep her between the ditches!

Good luck, happy trails, and God bless!
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
MSHappyCampers is offline   Reply With Quote
Old 09-20-2020, 08:58 AM   #3
Senior Member
Join Date: Jul 2014
Posts: 25,502
If its a male fitting, you may not get any air out of it.

It may be designed only to fill the tanks from a tow truck and have a check valve in it, near the tank. Thats to prevent lose of air if the line/fitting is damaged.
twinboat is offline   Reply With Quote
Old 09-20-2020, 11:14 AM   #4
Join Date: Dec 2013
Posts: 39
I had a weird fitting on my air supply on my '02 Bus. I just removed it and put the same type of fitting I used on all my other pneumatic tools. Everything matched now.
gorgeguy is offline   Reply With Quote
Old 09-20-2020, 03:35 PM   #5
Junior Member
Join Date: Sep 2020
Posts: 20
It is a female coupler fitting and I would love to replace it but it is seized on there after all these years and I am afraid I will break it getting it off.... Was really hoping I could find the correct fitting for it but if not I may cut it off...
PastorB is offline   Reply With Quote
Old 09-20-2020, 11:28 PM   #6
Join Date: Dec 2013
Posts: 39
I just looked at some old posts on the Tiffin forum and found the connector is an Milton type M, which apparently is an industrial type fitting, but is supposedly available. Good luck.
gorgeguy is offline   Reply With Quote
Old 09-25-2020, 09:28 AM   #7
BradS's Avatar
Tiffin Owners Club
Join Date: Feb 2014
Location: Elverta, CA
Posts: 93
Not too usuful for filling tires

I suspected a similar issue when we bought our new Tiffin. For me, when the tank pressure is low, I can insert my standard male fitting on my hose and everything works fine. At full tank pressure, I can't insert the same fitting (maybe I'm just a 98 lb weakling).

On doing some reading, the air suspension pressure is a little low for filling tires. You may need to run the engine to keep the pressure high enough. So I don't use the system.
Brad & Dianna
2017 Allegro Bus 37AP
2015 Jeep Cherokee
BradS is offline   Reply With Quote

air, allegro, tiffin

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

All times are GMT -6. The time now is 01:10 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.