Description

Overview

WABCO male DuoMatic coupling connects the trailer-side air brake lines to the corresponding towing vehicle coupling through a single quick connection. This drawbar trailer version has a lever-free design and two G 3/8″ air ports.

The male coupling forms the trailer half of the DuoMatic connection, allowing the brake air circuits to connect and disconnect together.

Features

• Male DuoMatic coupling for drawbar trailer air brake connections.
• Two G 3/8″ threaded air ports.
• Lever-free trailer-side coupling configuration.
• Maximum operating pressure of 10 bar.

Specifications and Materials

WABCO manufactures this coupling to OE specification for trailer pneumatic brake connections. Its operating temperature range extends from -40°C to +80°C, with a maximum operating pressure of 10 bar.

Both air connection ports use G 3/8″ threads.

Part number: 452-804-001-0.

Refer to the official WABCO DuoMatic technical specifications

Compatibility and Fitment

Match the male trailer-side coupling, G 3/8″ port threads and existing DuoMatic connection before ordering. In particular, do not confuse this lever-free trailer half with the lever-operated female towing vehicle half or alternative metric-thread versions.

The following cross-reference numbers identify verified equivalent or replacement parts for this exact application. Confirm the selection-critical fitment details against the part being replaced before fitting.

S4528040010

Related Parts

Check the related service parts below against the trailer setup before ordering.

Compliance and Safety

Inspect the coupling face, mating surfaces and seals for wear, contamination or damage before connecting. After installation, check both pneumatic connections for air leaks and confirm correct trailer brake operation before returning the combination to service.

Trailer Applications

Drawbar trailers and towing vehicles use DuoMatic connections to join their pneumatic brake circuits. This male half suits trailer-side replacement where the existing arrangement uses the same coupling profile and G 3/8″ air connections.

Cross-reference and Suitability

This part cross-references to the following verified equivalent or replacement part numbers:

Why Choose ICS Trailers

ICS Trailers supplies WABCO pneumatic connection components for heavy vehicle and trailer servicing. If you need help matching the male trailer coupling or its G 3/8″ connections, send through photos of the existing part and air line arrangement so our team can assist with your replacement.

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