Description

Overview

Manual Slack Adjuster 10 Spline 38mm is designed for S-cam brake systems on general purpose trailers where consistent adjustment matters. Because a slack adjuster controls the relationship between pushrod travel and brake shoe movement, it plays a direct role in braking performance. Replacing a worn adjuster can help restore correct brake geometry and predictable pedal feel, especially on setups where routine inspections and periodic adjustments are standard practice.

Features

• 10 spline interface designed to suit a 38mm (1 1/2in) camshaft size
• 3-hole arm layout to support common clevis mounting positions
• Arm length options listed as A 127mm, B 152mm, and C 178mm
• Clevis pin suit listed as 12.7mm (1/2in) for typical trailer brake linkages

Specifications and Materials

This Manual Slack Adjuster 10 Spline 38mm suits cam brake linkages where you need a manual adjuster with a 3-hole arm and a 12.7mm clevis pin fit.

For slack adjuster setup guidance, refer to the industry slack adjuster setup and compliance guide which outlines common inspection points

Part number: FB5020.

• Spline: 10
• Spline size: 38mm (1 1/2in)
• No. of holes: 3
• Clevis pin diameter: 12.7mm (1/2in)

The three arm length positions help match common linkage geometry without needing non-standard hardware.

Compatibility and Fitment

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. BP5020, E-612, FL10.351, K131301002, WT5020, T02-5020

Confirm the spline count, camshaft size, and required arm position before ordering. Also check that your clevis pin size matches the listed 12.7mm specification.

Compliance and Safety

Braking components are safety-critical, so correct matching and installation matters. Inspect the full brake linkage during replacement rather than swapping one part in isolation. If you are unsure about fitment, seek advice before installation.

• Confirm free movement through full brake application and release
• Check for abnormal wear at clevis and pin interfaces
• Recheck adjustment after initial bedding and service use

Trailer Applications

Manual Slack Adjuster 10 Spline 38mm suits general purpose trailer brake setups that use S-cam foundation brakes and a 38mm camshaft interface.

• General freight and flat top trailers
• Tipper and tautliner style trailers with S-cam brakes
• Plant and equipment trailers using comparable cam brake hardware
• Other heavy trailer applications requiring a 3-hole manual adjuster

Cross-reference and Suitability

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

Consequently, you can use this list to speed up interchange checking, but always verify the physical specs first.

Why Choose ICS Trailers

ICS Trailers supplies foundation brake parts selected for heavy trailer service and practical workshop fitment. We focus on clear specifications so you can match spline size, arm layout, and linkage hardware confidently. As a result, you spend less time chasing compatibility and more time getting the trailer back into service.

Browse Foundation Brakes at ICS Trailers in our Foundation Brakes category