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WABCO · Brakes & Wheel End
4006120050
In stock · ships from Knoxville
This is a genuine WABCO Roll Stability Support (RSS) retrofit kit for trailers.
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Intended for retrofitting roll stability to trailers already running a WABCO electronic braking system. Not for trailers with only pneumatic braking (air‑brake‑only) unless upgraded to full EBS.
Part data verified against 3 catalog sources
Numbers this part supersedes or interchanges with. Showing 1 of 1.
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It contains an EBS trailer modulator (12‑volt) that electronically controls braking when sensors detect a potential rollover, along with wiring cables, an air line filter, and installation labels. The kit allows you to add electronic stability control to an existing trailer braking system, helping prevent rollovers during sharp turns or sudden evasive maneuvers. It is designed for trailers that already use WABCO TEBS or EBS electronic braking platforms.
Part Number: 4006120050
RSS + RETRO KIT
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end
