When things go wrong, THT is only a phone call away. We can help out with all breakdown and planned repairs including:

  • Diesel engine repairs including;
    • Cooling systems
    • Oil systems
    • Compression systems
    • Air systems inc Turbochargers
    • Exhaust systems
    • Tyres and driveline systems
  • Brake and clutch repairs
  • Gearbox and differential repairs
  • Electrical fault finding and repairs
  • Engine Diagnostics including CAN systems
  • Hydraulic system repairs

Our mobile service teams ensure if you can’t come to us, we can come to you!  We have NO CALL OUT FEES from Mandurah to Two Rocks. We only charge the time we are on the job.

Our ability to conduct repairs extends to all types and applications of diesel powered equipment including:

  • On-road
  • Marine
  • Power Generation and G-Drive (both industrial and marine)
  • Sprinkler and Fire Pump Engines
  • Industrial Stationary Engines
  • Construction Equipment including Forklifts, Skid Steer Loaders, Backhoes, Front End Loaders, Graders etc
  • Agricultural Equipment including Tractors, Balers, Harvesters etc

Not all repairs can be done mobile, so our fully equipped mechanical workshop allows for larger repairs to be completed in a timely manner. THT are members of MTAWA (Motor Trade Association of WA) and are a Fleetcare Authorized Repair Centre.

For all other maintenance and servicing please see the other pages, viewable from the menu to the right for all other services we can offer.

THT are a one stop diesel equipment management solution.


If it's broken and needs repair, Call THT.

Our highly trained technicians are available to conduct quality repairs to keep you moving

Call or complete the request form below and we'll be in touch.

Call (08) 9344 4844

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