Description

Overview

The air brake test point valve gives a compact, repeatable point to connect pressure gauges to heavy-vehicle air brake circuits. It suits workshop diagnostics, periodic inspections and fault finding where quick access to line pressure is required.

Features

• M16 x 1.5 circuit thread with a 3/8 NPT outlet for common test adaptors.
• Shut-off design that seals cleanly when the test line is removed.
• Compact body that suits tight air line runs on trailers and dollies.

Specifications and Materials

This air brake test point valve has an M16 x 1.5 connection on one side and a 3/8 NPT threaded port on the other for standard test fittings. Part number: AB8405. The construction is rated for typical heavy-vehicle air brake pressures when used in a correctly maintained system. Further background on compressed-air brake pressure test connections is provided in this ISO pressure test connection standard overview

Compatibility and Fitment

Use this fitting in air brake lines when test access is needed. It suits many trailer and dolly air systems that use M16 x 1.5 and 3/8 NPT ports; however, installers should always confirm thread forms and sealing methods before installation. This cross-reference listing means this valve is a suitable replacement for the part numbers and applications shown. Some changes in air line plumbing may be required. ABF0010, HA318065001

Compliance and Safety

Always depressurise the air system and follow lockout procedures before removing or installing any air brake test point valve. Also mount the valve where accidental damage is unlikely and protect it from road debris. After installation, perform a leak test and confirm that it operates smoothly at normal system pressure.

Trailer Applications

This air brake test point valve suits prime mover and trailer combinations that require regular pressure checks, for example converter dollies and semi-trailers. It also helps workshops standardise where test gauges connect, which can shorten diagnostics.

Cross-reference and Suitability

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

Whenever you replace an existing test point with this unit, match the original position, verify port sizes and then perform a functional brake test so the vehicle remains compliant and safe.

Why Choose ICS Trailers

ICS Trailers focuses on proven air brake parts selected for compatibility with Australian heavy-vehicle fleets. In addition, the range is curated so workshops can source test fittings, valves and hardware that work together reliably. For more components like this, browse the Air Brake Parts range at ICS Trailers