Breakdown, diagnostic and diesel engine rebuild services in Toowoomba

At Toowoomba Heavy Diesel, our team of qualified and skilled diesel mechanics aims to get your heavy vehicle back on the road. We offer dedicated service, repair, breakdown and diagnostic services for agricultural, earthmoving, mining and industrial vehicles? Additionally, our maintenance monitoring solutions are sure to prevent avoidable breakdowns in the future.

Can’t make it to our garage in Harristown? No stress, as we have a fully mobile service truck which travels throughout the Darling Downs to get you moving again.

Call us today at Toowoomba Heavy Diesel. We aim to keep your heavy vehicle in working order.

Breakdowns & Diagnostics

At Toowoomba Heavy Diesel, we offer an affordable and effective service to help you always remain fully operational. In the case of breakdowns, we offer a field service to allow diagnostics and repairs in most situations. We service most makes & models of machinery & equipment across all industries—including mining, transport, power generation, agriculture, industrial and earthmoving.

Our skilled mechanics are equipped with the latest tools and diagnostic equipment to identify, report & repair issues. From hydraulic systems, engine & power train system troubleshooting to resolving electrical faults, we provide a wide range of mobile services and are committed to minimising downtime.

Engine Of A Truck - Diesel Mechanic in Harristown, QLD
Fixing Truck Engine - Diesel Mechanic in Harristown, QLD

Engine Rebuilds

Toowoomba Heavy Diesel is a leading diesel engine rebuilder. We specialise in servicing Cummins Engines.

When rebuilding a diesel engine, we focus on replacing/reconditioning key parts including the engine block, crankshaft, connecting rods, cylinder head, camshaft, oil pump, coolant pump, fuel pumps, injectors, gaskets, seals, housings, clutch & drive units. We employ advanced techniques and use high-quality replacement parts to give optimal performance and durability. Our team ensures every rebuilt diesel engine receives meticulous attention to detail to make sure it meets & exceeds factory specifications.

On/Off Road Trucks & Industrial Machinery Repairs

Heavy vehicles & machinery downtime & breakdowns cost you more money & lost productivity. We provide diagnostics, maintenance, repair, servicing & scheduled maintenance at our Harristown workshop as well as a mobile servicing throughout Toowoomba and the Darling Downs.

Our technicians can service a wide range of heavy diesel equipment, including bulldozers, excavators, blast drills, tractors, generators, cotton module handlers, container handlers on and off-road trucks & heavy transport equipment. Whether you require routine maintenance, emergency repairs or specialised diagnostics, our team is ready to assist you promptly and professionally.

We rely on our handpicked parts supplier group to provide parts, lubes and more from local and imported suppliers at competitive prices.

Empty Container Handler - Diesel Mechanic in Harristown, QLD
Top Of Crane - Diesel Mechanic in Harristown, QLD

Scheduled Maintenance

Regularly having your diesel vehicle or heavy machinery serviced can ultimately save you time and money. Scheduled maintenance also helps prevent costly repairs and breakdowns.

At Toowoomba Heavy Diesel, we provide maintenance services for clients in the transport, mining, earthmoving, agricultural and industrial sectors. Our technicians perform thorough inspections, oil changes, filter replacements and more. With our proactive approach, we can help keep your vehicles and machinery in optimal condition, reducing the risk of unexpected downtime.