Description

Overview

Spring brake booster plug covers the release-tool access opening on compatible spring brake chambers when the caging tool is not in use. Its red tethered form keeps the cap attached during servicing, reducing the chance of it being misplaced.

Features

• Tethered red plug for spring brake release-tool access
• Removes for manual caging and refits after service
• Covers the chamber opening between caging procedures
• Visible red form makes the plug easy to spot during inspection

Specifications and Materials

This replacement plug suits spring brake applications with a removable cover over the release-tool keyhole. Match the cap profile, retaining loop and tether arrangement to the existing chamber.

Part number: AB6449.

See the Haldex spring brake actuator installation guide

Compatibility and Fitment

Compare the old plug and chamber opening before ordering. Release-tool plugs vary between chamber designs, so a similar appearance alone does not confirm fitment.

Compliance and Safety

Refit the plug after using the release-tool opening and make sure it seats securely around the keyhole. Spring brake chambers contain a powerful compression spring, so follow the correct caging procedure and never attempt chamber work on a damaged unit.

Trailer Applications

This spring brake booster plug suits heavy truck and trailer spring brake service when the original release-tool cover is missing, damaged or no longer securing the access opening.

Why Choose ICS Trailers

Small spring brake plugs can look similar even when the chamber opening or retaining arrangement differs. ICS Trailers can help compare the existing plug, spring brake photos and chamber details before you order.

• Replace a missing or damaged tethered cap without changing the complete chamber.
• Send a clear photo of the rear housing and old plug if fitment is uncertain.

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