Heavy Diesel Mechanics: Reliable Repairs, Maintenance and DPF cleaning for diesel vehicles and machines

Heavy machinery is vital to your business. At Usad Heavy Diesel Services, we keep it reliable with expert diesel mechanic services. Our team ensures your equipment runs smoothly, reduces downtime, and improves performance.

Our Story

Founded in 2021, Usad Heavy Diesel Services brings years of hands-on expertise in diesel mechanics and heavy machinery repair.

Joel Usad, our lead mechanic, has worked with industry leaders like CAT, Komatsu, and Hitachi. His experience spans excavators, dump trucks, and other heavy machinery, helping businesses minimise downtime and keep equipment reliable.

Our Values

Trust

We understand how important it is to work with a team you can rely on. That’s why we’re open, honest, and clear in everything we do—from how we diagnose your equipment to the way we communicate with you. Our clients trust us because we do what we say we’ll do, and we stand by the quality of our work every time.

Reliability

You can count on us to get the job done right the first time. Our experienced technicians follow a clear, proven process to diagnose problems accurately and apply the right solutions. We focus on fixing the root cause, not just the symptoms, so your equipment stays dependable and productive after every service.

Customer Satisfaction

We build lasting partnerships by providing dependable services and expert solutions. When you work with us, you gain a team that genuinely cares about your success.

What We Do

We offer a full range of services to keep your heavy machinery in top condition:

Engine Repairs and Rebuilds
We service engines from top brands like CAT, Komatsu, and Hitachi. Whether troubleshooting or rebuilding, we ensure optimal performance.
DPF Cleaning
Our professional DPF cleaning restores optimal performance and ensures your vehicle complies with emission standards.
Transmission and Hydraulics
We diagnose, repair, and replace transmission and hydraulic components to keep systems reliable.
Machinery Maintenance and Repairs
From excavators to dump trucks, we handle routine maintenance and major repairs to extend equipment lifespan.
Welding and Structural Repairs
We fix structural issues and provide custom modifications with expert welding and fabrication services.

Our Commitment to Safety

Safety is our top priority. Since 2021, we’ve maintained zero lost time injuries (LTIs) by following strict OHSE standards. Our team regularly updates its training to stay compliant with the latest safety regulations, ensuring a safe working environment for everyone.

Our Expertise

Our services are backed by extensive qualifications, including:

Certificate III in Automotive Mechanical Technology (AUR30405)
Certificate III in Surface Extraction Operations (RII30115)
Heavy Rigid (HR) Class Driver’s License

Joel’s industry experience includes servicing CAT shovels, Komatsu trucks, and other machinery across mining and construction projects.

Need diesel DPF cleaning, repairs or maintenance?

Get in touch today for expert support.

Phone: 0418 168 983
Email: info@heavydieselmechanics.com
Address: 4/4 Belconnen Crescent, Brendale QLD