Description

Overview

16.5 x 7 brake drum carries the braking surface for GP trailer wheel ends that use 279.4mm PCD and 5 + 6 hole mounting.

This drum suits GP trailer and 5 spoke hub setups where the pilot, brake size and mount hole pattern match the existing assembly. Because brake drum fitment depends on the axle and hub setup, match the old drum before ordering.

Features

• 16.5 x 7 brake drum for GP trailer wheel-end braking applications
• 279.4mm PCD with 239.8mm drum pilot for supported 5 spoke hub setups
• 5 + 6 hole pattern with 20mm mount holes
• Single brake drum supplied for one wheel-end service position

Specifications and Materials

Brake size measures 16.5″ x 7″. The drum uses a 239.8mm pilot, 279.4mm PCD and 20mm mount holes.

Part number: AP0855C.

The 16.5 x 7 brake drum should be checked against the removed drum, axle type and hub pattern before installation.

For service context, read the HVIA heavy vehicle brake servicing guide

Compatibility and Fitment

Match the brake size, drum pilot, PCD, hole count and mount hole diameter before ordering. Also check the existing drum against the 5 spoke hub setup, especially where old trailer axles have been repaired or mixed over time.

Compliance and Safety

Inspect the hub, studs, shoes, linings and hardware before fitting a new drum. Replace worn or damaged brake components together when the wear pattern shows heat checking, scoring, cracking or uneven contact.

After fitting, confirm the wheel-end turns correctly and complete normal brake adjustment and workshop checks before returning the trailer to service.

Trailer Applications

Trailers use this style of drum on GP trailer axle setups with 16.5″ x 7″ foundation brakes. Workshops usually replace it when the braking surface has worn beyond service limits, suffered heat damage, or no longer matches the shoe contact cleanly.

Why Choose ICS Trailers

ICS Trailers keeps trailer brake parts focused around the measurements that matter at the parts counter: brake size, PCD, pilot, hole pattern and mount hole diameter.

View more foundation brakes