The 40020212 is a clearance-sensing (S‑ABA), self-adjusting automatic slack adjuster designed for 1½″ × 28-spline camshafts with a 6″ arm span, ideal for trailers with 16.5″ drum brakes.
Haldex 6 in Automatic Slack Adjuster, Straight Clevis
$176.31
Slack Adjuster, Clearance