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Did You Know?

WABCO is the first to the NA market with OnGuard. 90,000+ systems in the field and 32 billion highway miles.

Trailer Anti-lock Braking System

WABCO is focused on continuously developing integrated safety technology and efficient system solutions, delivered by the broadest and most experienced support network.


WABCO has been a trailer ABS technology leader since 1993 with more units in North American trailers than any other provider. Enhanced Easy-Stop™ ABS provides unparalleled trailer monitoring and control capabilities to fleet and owner-operators, with system configurations to meet virtually any trailer application – basic, standard, and premium.

2S/1M Basic
2-sensor/1-ABS relay valve system provides increased directional stability while meeting FMVSS-121 requirements. Recommended for converter dolly and semi-trailer applications.

2S/2M Standard
2-sensor/2-ABS relay valve system delivers extra control and directional stability with increased protection against tire flatspotting. Valves can be serviced individually. Recommended for single and tandem axle semi-trailers.

2M Premium
Choice of 2 or 4 sensors. A third relay valve is available on the 4-sensor model. Recommended for tandem axle semi-trailers, multi-axle or full trailers.