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Diesel Engines & Fuel Systems

Welcome to DEFS

DEFS (Diesel Engines & Fuel Systems) are specialists in providing and exporting diesel engine training materials throughout Australia and the world since 1970.

Our comprehensive range of training and assessment materials are designed to support both full institution rollouts as well as individual student learning requirements.

DEFS training packages are designed specifically for the Australian market and are tailored to institutional teaching requirements.

We have over four decades of experience supporting apprentices with the latest diesel engine technology for the heavy commercial vehicle and mobile plant/equipment sectors.

All our products are tailored to Australian institutions with local real time support.

I am currently using your DEFS textbook in Biloela to deliver MEM18026 and MEM18029 with the apprentices. It is a great book, easy to understand and a pleasure to teach with. As you know mine apprentices don’t get exposure to VE and in-line pumps and only the basics on common rail, this is where your book makes it easy for them to understand and grasp the concepts of how these fuel systems work without over complicating it.

Brendon Anderson
TAFE Teacher
Bundaberg May 2015