Description

Overview

The Automatic Slack Adjuster 10 Spline 38mm supports correct brake stroke on general purpose truck and trailer S-cam brake systems. This helps keep braking response consistent as linings wear. Before you fit it, confirm spline size, arm length and clevis pin diameter against the existing hardware.

Features

The self-adjusting mechanism reduces the need for regular manual take-up. The two clevis positions suit either 140mm or 165mm arm length setups, which helps when matching different brake chambers or brackets. The 5/8in (16mm) clevis pin size also aligns with common heavy vehicle clevis hardware.

• Automatic adjustment to maintain stable pushrod stroke
• 10 spline input to suit 1 1/2in (38mm) camshafts
• Two-hole arm supports 140mm and 165mm positions
• 5/8in (16mm) clevis pin fitment

Specifications and Materials

This automatic slack adjuster suits truck and trailer applications that use a 10 spline, 1 1/2in (38mm) camshaft interface. It provides two arm length positions of 5 1/2in (140mm) and 6 1/2in (165mm) with a 5/8in (16mm) clevis pin diameter.

Part number: FB5016.

Refer to the Bendix slack adjuster technical overview for general automatic slack adjuster guidance

Compatibility and Fitment

Confirm camshaft spline count and diameter because similar arms can mount to different camshafts. This cross-reference listing means this part is a suitable replacement for the part numbers and applications shown, but some changes in installation may be required. WT5016AS, CWMK21102S, BP21102, MK21102S, T02-5016, ASC21102, 79AS004

Compliance and Safety

Treat slack adjuster installation and setup as safety-critical work. Check for free movement, secure fasteners, and correct pin retention after fitment. If brake stroke remains out of specification, inspect the foundation brakes and air system rather than relying on adjustment alone.

Trailer Applications

Automatic Slack Adjuster 10 Spline 38mm suits many heavy trailers and trucks that run S-cam foundation brakes. It can suit general purpose axle packages where 140mm or 165mm arm length options are used. For example, it fits setups that need a 10 spline, 38mm input and a 5/8in clevis connection.

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

Additionally, verify each equivalent against your axle build before ordering.

Why Choose ICS Trailers

Instead of guessing, you can match key dimensions and order with confidence. ICS Trailers focuses on heavy vehicle trailer parts, so you can bundle related brake service items in one checkout. To see related brake components, Browse Foundation Brakes parts at ICS Trailers for compatible hardware and consumables.