Mounting Guidelines for the Roadmaster BreakAway Air Cylinder
Updated 11/17/2025 | Published 12/01/2024
Question:
Can you provide some suggestion or better yet - pictures of where I can have the Roadmaster Brake Away Air Reservoir installed on a 2021 JEEP Wrangler Unlimited Sahara 4xe ? I had a 2012 JEEP Wrangler Rubicon before and the canister placement was a no brainer - but with a I4 motor, turbo and all the PHEV electric items nothing is looking good... How about outside of the engine compartment? or ?????
asked by: Marc N
Expert Reply:
Marc, we don't have any pictures yet of the Replacement Roadmaster Breakaway Kit for BrakeMaster Flat Tow Brake Systems # RM-8600 installed in a 2021 Jeep Wrangler Unlimited Sahara 4xe but according to Roadmaster the air reservoir can be mounted anywhere within four feet of the existing air lines (from the motorhome and to the air cylinder), and where the drain valve at the bottom of the reservoir is easily accessible.
They also mention that the air reservoir must be mounted away from any moving parts, so that the air reservoir will not be damaged by, or interfere with, the proper operation of any components. You will need to choose a location that will allow the bottom of the air reservoir to be mounted lower than the top, so that any accumulated water can be drained from the tank. The reservoir cylinder does not have to be perfectly straight up and down, but the drain valve must be the lowest part of the reservoir.
Product Page this Question was Asked From
Replacement Roadmaster Breakaway Kit for BrakeMaster Flat Tow Brake Systems
- Accessories and Parts
- Flat Tow Brake System
- Breakaway Kit
- Roadmaster
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Jesse M.
11/17/2025
Hey Marc, were you able to find a good spot to mount the air reservoir on your Wrangler 4xe? Knowing what location worked best could really help others with the same setup. Your update could make it easier for the next person tackling this install.