Description

Overview

The 8mm air brake connector joins metric 8mm nylon tube to a 3/8 NPT female port in a trailer or heavy-vehicle pneumatic circuit. Its straight configuration suits installations where the air line approaches a valve, manifold, reservoir or control component in line with the threaded port.

Features

• Push-to-connect port suits 8mm outside-diameter nylon air brake tube.
• 3/8 NPT male thread connects to a matching tapered female port.
• Factory-applied thread sealant is included on the male thread.
• Reusable release collet allows tube removal during servicing.

Specifications and Materials

This straight fitting uses a brass hex body with an integrated tube support, gripping collet and internal seal. The complete connector accepts the tube without a separate nut, olive, ferrule or compression sleeve.

Part number: 88-M003-08N06.

Review the Alkon metric air brake fitting catalogue

Compatibility and Fitment

Confirm the tube measures 8mm across its outside diameter and the receiving port has a 3/8 NPT female thread. Do not substitute 5/16in imperial tube, BSP thread or a straight metric thread, as these connections can appear similar but seal differently. These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes. MDQ68DOT806, 35-M680806, 35M680806, MAQ68-DOT-8X6, MAQ68DOT8X6, M1868X8X6

Related Parts

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

Compliance and Safety

Depressurise the pneumatic circuit before removing or installing the connector. Cut the tube square and remove any scored, oval or damaged section before pushing it fully through the collet to the internal stop. Keep the factory thread coating clean, tighten through the brass hex and avoid forcing the tapered thread into an incompatible port. Restore pressure gradually and leak-test both connections.

Trailer Applications

Trailer workshops fit this connector where metric air line must terminate at a larger imperial threaded port. Typical service locations include brake valves, air suspension controls, pneumatic manifolds, air tanks and auxiliary equipment using 8mm tubing with a straight 3/8 NPT connection.

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 supplies metric and imperial pneumatic fittings for trailer brake, suspension and auxiliary air repairs. For identification help, send a clear photo and confirm the tube outside diameter, thread diameter and whether the receiving port uses NPT, BSP or metric thread.

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