Description

Overview

Caliper tappet and boot 69mm assemblies keep disc brake calipers sealed, aligned and responsive under heavy trailer loads. This kit suits popular Knorr and Bendix air disc brakes used on many highway semi trailers. As a result, it helps restore consistent pad movement, even wear and reliable brake response after service.

Features

This caliper tappet and boot 69mm kit includes a matching piston tappet and protective rubber boot. Additionally, the design focuses on sealing the caliper from road grime, moisture and fine brake dust. This helps maintain smooth adjuster travel, reduces corrosion risk and supports even contact between pads and rotor.

Specifications and Materials

The caliper tappet and boot 69mm assembly uses a 69mm piston interface to suit matching air disc calipers. Part number: FB2879. Manufacturers machine the tappet body from steel and mould the boot from oil resistant rubber for long service life. For broader background on air disc brake hardware and maintenance, review this manufacturer technical guide from Bendix.

Compatibility and Fitment

This cross-reference listing means this part is a suitable replacement for the part numbers and applications shown. Some changes in installation may be required. SN 6/7 Series, SK 6/7 Series, Bendix ADB22X.

Compliance and Safety

Correct caliper tappet and boot 69mm fitment supports even clamp force across the rotor, which helps the trailer meet braking performance requirements. In addition, keeping the boot intact limits water and dust ingress that can lead to sticking pistons or uneven pad wear. Always follow the brake manufacturer service data, torque settings and bedding procedures after replacing internal caliper components.

Trailer Applications

Fleets use this style of caliper tappet and boot 69mm kit on modern air braked semi trailers, dollies and rigid combinations that run disc brake axles. Furthermore, it suits workshops carrying out brake overhauls where the existing tappet has worn, corroded or lost correct movement. Technicians should replace damaged boots promptly to prevent further contamination inside the caliper.

Cross-reference and Suitability

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

Use these identifiers to match the caliper tappet and boot 69mm kit to existing fleet hardware during service planning.

Why Choose ICS Trailers

ICS Trailers focuses on proven foundation brake components that support reliable performance in Australian conditions. Additionally, our team can help match caliper hardware to your current axle and brake setup so you order the right parts the first time. You can therefore standardise consumables across your fleet and simplify future brake maintenance.

Browse Foundation Brakes at ICS Trailers in our Foundation Brakes category