QT Diesel Services began with a simple idea — to provide reliable, honest, and hassle-free mechanical support to the people who keep Australia moving.

Starting out as a mobile heavy-vehicle mechanic, we’ve grown into a full-scale workshop operating from our purpose-built facility in Colac West. Today, we support transport operators across the region with premium servicing, expert repairs, and fast response times when it matters most.

A major milestone in our journey was partnering with Kenworth and DAF as an authorised service, parts and warranty agent supported by PACCAR. This allows us to offer genuine parts, specialised servicing, and trusted workmanship backed by one of the world’s leading truck brands.