Automatic slack adjuster. Self-adjusting for consistent brake stroke. FMVSS-121.
Keeps moisture out of your brake lines. Replace every 300k mi.
Complete front-axle brake shoe kit. FMVSS-121 compliant.
Direct-replacement for Cascadia fleets on WABCO systems.
Pushes brake shoes against the drum. 30/30 = 30 sq in service + 30 sq in parking.