Description

Overview

The brake shoe anchor pin C spring BPW helps keep BPW drum brake shoes seated on the anchor pin during service. It also helps maintain consistent lining-to-drum contact, so heavy trailers stop predictably. Use this C spring when servicing BPW open end shoes and you need a like-for-like replacement. As a result, you can reduce the risk of shoe movement, uneven wear and nuisance brake noise.

Features

• Positive shoe retention on the anchor pin for BPW drum brakes
• Compact 9.7mm length that suits the specified BPW anchor pin pocket
• Matched 32mm internal and 37mm external diameters for correct spring preload on the shoe web
• Suitable for routine brake relines, minor repairs and full axle overhauls on compatible BPW drum axles

Specifications and Materials

This C spring suits BPW drum brake anchor pins that retain open end shoes. Key dimensions are 9.7mm length, 32mm internal diameter and 37mm external diameter for the spring coil. Part number: FB3223G. For broader guidance on servicing BPW drum brakes, refer to the manufacturer technical guide BPW operator’s manual for drum and disc brakes

Compatibility and Fitment

This spring fits BPW drum brakes that use an anchor pin and C spring to retain open end brake shoes. It suits workshop jobs where you replace worn BPW anchor pin hardware to restore correct shoe clamping. Confirm the spring dimensions match your removed part, then check that the anchor pin pocket accepts a 9.7mm long spring.

Compliance and Safety

Correct anchor pin springs help the brake assembly maintain even lining pressure, which supports roadworthiness and heavy vehicle safety checks. Replacing damaged or weakened springs during each brake reline also reduces the chance of shoes tilting or dragging. Follow BPW service instructions, chock wheels securely and isolate the trailer before you begin work. Finally, test the brakes at low speed in a safe area after any work on the foundation brake hardware.

Trailer Applications

Workshops typically use the brake shoe anchor pin C spring BPW on BPW-equipped semi-trailers, skel trailers and general freight trailers running BPW drum axles. Fleet maintenance teams can also keep a small stock of these springs ready for scheduled brake relines. The compact size suits on-vehicle work and bench relines, so you can refresh anchor hardware without modifying other components.

Cross-reference and Suitability

No additional manufacturer cross-reference or interchange part numbers appear in current BPW documentation for this C spring. Instead, base selection on the BPW brake family, a clear visual match and the stated dimensions.

Why Choose ICS Trailers

ICS Trailers focuses on practical heavy vehicle parts, so you can match small brake components with confidence. Our team also selects anchor pin hardware that suits common BPW trailer axles used across Australian fleets. You can pair this C spring with other BPW brake shoes, rollers and pins in our foundation brake range. For more compatible parts, browse Foundation Brakes at ICS Trailers