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Old 09-24-2022, 11:08 PM   #1
Junior Member
Join Date: Aug 2014
Posts: 3
Freightliner towed air line connecter

Just picked up our new 2022 Ventana 3412 on a Freightliner chassis.... congrats accepted. There is an airline quick connect next to the hitch receiver that I do not recognize. I want to hook up my BrakeMaster (by Roadmaster) brake in my towed. Problem is that the female connector on the chassis does not work with the usual quick connect male fittings I can find at tool or auto part retailers. Does anyone know where I can get the male component to fit this female fitting? It has plastic surrounding the opening and the dealer said it was installed by the chassis builder.
Do I have to try to get it from Freightliner?
Thanks, Allen
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Old 09-25-2022, 04:07 AM   #2
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Newmar Owners Club
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Join Date: Aug 2021
Posts: 530
I have brake sync but use Air Force One and it was a direct fit. But you might call etrailer, they sell parts and their tech support is very knowledgable. If you email them it may take a couple days.

Or you could check with your Newmar Customer Care person who should be on a window sticker Drivers side.

Freightliner installed it so they are a third source.

I did find the part on etrailer and there is a video but you may need to call them to get the dimensions. Hope it helps

2022 Kountry Star 3412
Jeep Wrangler
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Old 09-25-2022, 08:00 PM   #3
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Join Date: Aug 2018
Location: Edmond OK
Posts: 278
Its amazing that after market braking systems (AF1), Spartan Chassis and Freightliner all use different size fittings. I know for certain that Demco has the airline that goes from Freightliner to 1/4. I believe that e trailer now has the airline you are looking for.
Gary and Dayna
Edmond, Oklahoma
2021 DSDP 4369 Freightliner
2012 JEEP Liberty 4WD,Demco Dominator, AF1
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Old 09-25-2022, 08:31 PM   #4
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Location: Naples, FL
Posts: 465
I ordered mine from e-trailer. Delivered fast. Freightliner and Newmar were out of stock. This was 6 weeks ago.
Paul & LeAnn Toth
The Doodles Kiki and Baxter
2022 Dutch Star 4369
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air, freightliner, tow, towed

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