Service
Heavy Diesel & Plant Repairs
Diagnosed properly, fixed once. Engine, driveline, hydraulics, electrical, cooling, brakes and suspension — for cranes, trucks and heavy plant. On site when you need it, in the workshop when that's smarter.
- Standards
- AS 2550 / AS 1418
- Turnaround
- From 6 weeks
- Coverage
- QLD · PNG · Pacific
- Backed by
- Zero Downtime Guarantee
Who this is for
Anyone running heavy diesel machinery that has to work. When a fault is slowing a machine down or threatening a shutdown, you need a diagnosis that finds the actual problem and a repair that holds — not a parts-swap that has you back on the phone next week.
What we repair
We cover the full mechanical and electrical scope of heavy diesel equipment:
- Engine & fuel systems — diagnosis, repair and overhaul; injectors, pumps and fuel system faults.
- Driveline — clutches, transmissions, differentials, final drives and axles.
- Cooling systems — radiators, pumps, thermostats and overheating faults.
- Hydraulics — cylinders, motors, valving, accumulators, hoses and fittings; leak diagnosis and reseals.
- Electrical — batteries, charging, wiring, control modules and advanced diagnostics (see electrical, LMI and diagnostics for LMI and Liccon work).
- Brakes & suspension — brake faults, suspension components and steering.
- Plus general repairs — lights, locks, wipers and washers — and everything in between.
The KDI process
Diagnose
Advanced diagnostic equipment and manufacturer software to find the root cause.
Quote
A clear, itemised quote before the work starts.
Repair
Fixed in-house or on site, with parts drawn from our extensive on-hand inventory.
Test & return
Tested, documented, and back to work.
Assets and brands
Cranes of every type, trucks, prime movers and trailers, earthmoving and civil plant, telehandlers and specialised machinery. Brand-agnostic, including Caterpillar electronic diagnosis and repair.
Why KDI
Because we also inspect, rebuild and certify these machines, a repair here is done by people who understand the whole machine, not just the fault in front of them. And with parts on hand, the repair happens now — one client's catastrophic hydraulic leak was diagnosed, sourced and repaired with the machine back in operation within six hours.
Proof
513 jobs for 390 customers in 2025, across cranes, trucks and heavy plant, from the Sunshine Coast to the South Pacific.
Related services
For urgent faults, mobile and 24/7 breakdown response; for LMI and crane electronics, electrical, LMI and diagnostics; for ageing machines, rebuilds and refurbishment.
FAQ
Do you repair on site or only in the workshop?
Both — we run field-service units for on-site repairs and a fully equipped Yandina workshop for bigger jobs.
What machines do you work on?
Cranes, trucks, prime movers, trailers, earthmoving and civil plant, telehandlers and specialised machinery.
Do you keep parts on hand?
Yes — an extensive inventory, so most repairs don't wait on suppliers.
Can you diagnose electronic and control faults?
Yes — advanced diagnostics and manufacturer software, including Caterpillar and crane control systems.
Do you handle hydraulics?
Yes — cylinders, motors, valving, hoses and leak repairs are core work.
Based on the Sunshine Coast.
On site across Australia.
Sunshine Coast · Brisbane · Gold Coast · Bundaberg · Gladstone · Mackay
Plus remote, interstate and international mobilisation.
We put $500 a day behind the completion date we give you.
Every job is completed on or before the promised date or you receive $500 in service credits for every eligible working day of avoidable delay caused.
We're ready when you are.
We'll scope it, quote it fixed, and give you a date we'll stand behind.
Backed by our Zero Downtime Guarantee.