Description

Overview

Booster yoke and pin assembly 5/8in replaces a worn clevis joint in an air brake chamber or booster linkage so the pushrod connection stays tight and predictable. When there is slack, oval holes, or seized pins, you can get lost motion and uneven brake response. Using the correct pin size and thread size helps restore clean actuation and reduce premature wear in the linkage.

Features

Booster yoke and pin assembly 5/8in focuses on correct fitment rather than extra complexity. The yoke provides an adjustable threaded connection, while the clevis pin supports smooth articulation under load.

• 5/8in clevis pin suits common heavy duty brake linkages
• 5/8in threaded yoke for pushrod or linkage adjustment
• Compact design that suits service replacements
• Pin-only wear item can be replaced without changing major components

Specifications and Materials

Pin size: 5/8in. Thread size: 5/8in.

Part number: AB1178.

Confirm the thread form and any required locking method on your linkage before installation because applications vary.

Refer to Australian Design Rule 38 overview for braking system compliance context

Compatibility and Fitment

Booster yoke and pin assembly 5/8in suits air brake chamber and booster clevis linkages that use a 5/8in clevis pin and a 5/8in threaded yoke connection. Before ordering, check the clevis width, pin retention style, and pushrod thread form on the vehicle so you avoid cross-threading or binding through the full stroke. Then lubricate the pivot point where specified and confirm free movement after adjustment.

Compliance and Safety

Because this part sits in the brake actuation chain, follow the vehicle maker’s service instructions and any local roadworthiness requirements. Replace worn clevis holes, bent pins, or missing retainers at the same time so the joint cannot separate in service. Finally, perform a functional brake check after fitment and recheck linkage security after the first run-in period.

Trailer Applications

Booster yoke and pin assembly 5/8in commonly suits service work on heavy trailers that use air brake chambers and mechanical linkages, including semi-trailers, dog trailers, and drawbar combinations. It can also suit prime mover trailer interfaces where matching linkage hardware is required, but confirm the exact linkage geometry before ordering. Keeping the clevis joint tight helps maintain consistent braking feel across the fleet.

Cross-reference and Suitability

At this time, no verified interchange or cross-reference part numbers were confirmed for this item. Use the pin size and thread size as the primary selection checks when matching a replacement.

Why Choose ICS Trailers

We support workshop and fleet maintenance with practical parts that are easy to select and replace. Our team can help you match linkage hardware by application details so you avoid trial-and-error ordering.

To add related items, use Browse Air Brake Parts at ICS Trailers then confirm your pin and thread sizes before ordering