Foreverunauto 1.5x10 Spline 6-Arm Automatic Slack Adjuster For Mack & Volvo Trucks

This is a heavy-duty automatic slack adjuster from Foreverunauto, made to keep your truck's brakes in perfect adjustment.

It's a brand new part, part number 571658, and it's built tough.

This specific model has a 1.5x10 spline and a 6-arm design, commonly found on Mack and Volvo trucks.

It's an AS1133 style adjuster, so it's a direct replacement for the original.

Having a properly working automatic slack adjuster is critical for safe braking and even wear.

It comes in its original packaging, ready to install and get your rig back on the road with confidence.

Keep those brakes happy and legal with this solid piece of gear.