Description

Overview

This caliper retainer cap SB SN is a small but important service part for Knorr air disc brake calipers on heavy trailers. It closes the access bore over the adjuster area, so dirt, road spray and moisture stay out of the caliper body. As a result, the adjuster mechanism can keep working smoothly and the pads stay correctly supported between inspections.

Features

• Compact cap that covers the adjuster access bore on SB and SN air disc brake calipers
• Positive push-in fit that helps keep dust, moisture and road grime away from internal hardware
• Simple to replace during brake overhaul or routine caliper service
• Suitable for workshop stock so you can swap damaged or missing caps quickly

Specifications and Materials

Part number: FB2858.

For general information on air disc brake hardware and performance, you can review the manufacturer brake system overview at manufacturer brake system overview

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. In practice it suits All SB.., SN.

Compliance and Safety

Correctly fitted caliper retainer caps help protect the adjuster and internal hardware from contamination, so the brake can keep operating as designed between services. However, you should always follow the vehicle or axle manufacturer service instructions and torque settings during any brake work. In addition, ensure a qualified technician checks pad condition, rotor wear and caliper slide movement whenever you replace a caliper retainer cap SB SN.

Trailer Applications

This caliper retainer cap SB SN suits heavy trailers, dollies and other combinations that run Knorr SB and SN air disc brake calipers. It is a practical spare to keep on hand in the workshop, because caps can be damaged or lost during caliper service. Consequently, replacing missing caps quickly helps reduce moisture ingress and supports reliable braking on linehaul, local distribution and tanker work.

Cross-reference and Suitability

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

Why Choose ICS Trailers

ICS Trailers focuses on carrying proven heavy vehicle brake and suspension parts that match common fleet combinations. You get parts selected for Australian conditions, plus support from a team that understands on-road downtime pressures. For related components, you can browse Foundation Brakes parts at ICS Trailers via Foundation Brakes parts