How To Know If Your Tiffin Motorhome Has A Towed Air Brake Setup Or BrakeSync

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Question:

I have a 2023 Tiffin Allegro Bay 38AB on the Freightliner S2RV chassis has air brakes. I need a braking system for a 2022 Bronco Black Diamond without Adaptive Cruise Control. I have a Roadmaster Nighthawk all-terrain tow bar with the aftermarket bumper adaptor RM 035-1 to fit my Modular Bumper. Im thinking the Demco Air Force One is the best system but I see that some Tiffin Motorhomes with Freightliner Chassis come prepped for the Air Force One and that some Freightliner S2RV chassis come with Brakesync system. How can I tell what my S2RV chassis is equipped with and whether the Tiffin specific system will work? I am currently towing a 2014 Honda CRV with Stay-IN-Play Duo system our previous motorhome was a Class A gas with hydraulic brakes. Ive towed the CRV with the Stay-IN-Play with no apparent issues but concerned with the effects of the S2RV diesel engine braking affecting the TOAD brakes.

asked by: Bruce S

1

Helpful Expert Reply:

To determine if your motorhome has the Tiffin air brake setup or Freightliner BrakeSync you'll need to look at the rear and see if there's an quick disconnect fitting for your air line. The standard Tiffin air coupler fitting would look like a standard fitting, while the BrakeSync will have it's own proprietary coupler (pictured below). If you have the BrakeSync you'll want part # DM23MV, if you have the Tiffin air brake setup you'll want part # DM55MV.

If you find you have no air coupler in place then you most likely don't have an air tank either and would need the full kit # DM26VR to have both the towed vehicle and motorhome components.

If your motorhome has an engine brake that activates the tail lights then you would have issues using the Demco Stay-IN-Play DUO Supplemental Braking System # DM86VR since it activates the brakes in the towed vehicle when the light illuminate. This could cause your towed vehicle to brake unintentionally and would require you to swap over to the AFO since it only activates when the air brakes on the motorhome do.

expert reply by: Kevin C

1

BrakeSync Air Coupler
(click to enlarge)

Answer 1

Thanks for reaching out, Scott! The Blue Ox Base Plate Kit #BLU74FR on our site is actually the same thing as the Blue Ox part number BX2418 and I like that removable pin style much more than the etrailer Classic Base Plate Kit #e98945 with the…

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Answer 2

I do have an option for you but most factory motorhome trailer hitches have a maximum capacity of 5,000 lbs. If you have a larger vehicle that you need to tow, this will have to be replaced. I don't have a bolt-on option for you but still…

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Answer 3

The only difference between 7-Way Utility and 7-Way RV is the color of the wires. The pin outs are the exact same so either would work just fine with the other. If you check out the picture I attached you'll see that the functions are all the…

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Answer 4

The correct Blue Ox base plate for your 2019 Ram 1500 Laramie Longhorn is going to be determined by which truck you have. 2019 was a split model year for the Ram 1500 where they produced two very different models. The 1500 Classic which is…

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Answer 5

Actually, you need the Replacement Female Quick Disconnect for SMI Air Force One #SM99613. Installation is fairly straightforward, especially if the base is still intact enough to reuse and you only need to quick-disconnect end. If any of the rest of…

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Answer 6

They are not interchangeable but we do have a replacement jumper air hose for the SMI Air Force one with the part #SM99666 if you wanted a backup.

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Answer 7

I pulled up the owners manual of the 2022 GMC Yukon Denali and the only version that can be flat towed is the version that has 4 wheel drive with a two speed transfer case that has a neutral and 4 low setting. Any other setup cannot be flat towed.…

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Answer 8

Since your 2007 HR Neptune XL motorhome has air brakes you will want to use the Demco Air Force One Supplemental Braking System item #SM99243 with your 2021 Chevy Equinox. This system has been specifically designed to work with RVs equipped with air…

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Answer 9

Actually, I'd recommend the Roadmaster #RM-077-2 Dual Hitch Receiver you'd already looked at. This adapter is specifically designed for flat towing a vehicle, so it won't lower the capacity of your hitch. If the 2-1/4 inch drop will place…

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Answer 10

If you do not have a 7/8" pin and need a larger one, you will need the Blue Ox Aftermarket Bumper Adapter - 1" Pin #BX88358. This includes pins, clips, washers, and lock nuts and will get you the clearance needed to fit your Smittybilt XRC…

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Answer 11

The Coach Air Kit for Air Force One Supplemental Braking System part #SM99627 includes the motor home installation components that come with the full kit Air Force One system part #SM99243. Keep in mind the coach air kit is only half the kit of a…

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Answer 12

We have everything you need to pull your new GMC Terrain or Chevy Equinox behind your RV with all 4 wheels on the ground. To do this you will need a base plate kit, a tow bar, safety cables, a lighting solution, and a supplemental braking system.…

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How To Know If Your Tiffin Motorhome Has A Towed Air Brake Setup Or BrakeSync

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