Repairs, ECU remapping, performance upgrades, and 24/7 breakdown support for 4x4s, American trucks, heavy vehicles, and machinery across the Fraser Coast.
Or call us now: 07 4763 0287
From everyday repairs and logbook servicing to ECU remapping, engine rebuilds, and 24/7 mobile callouts. We handle it all in-house.
9 years of in-house Mainline Chassis Dyno tuning on the Fraser Coast. Custom tuning verified with real before-and-after data sheets.
LEARN MORE → 02Specialist servicing and repairs for RAM, Silverado, F-150, and GMC. Genuine parts, proper diagnostics, in Maryborough.
LEARN MORE → 03Diagnostics, logbook servicing, suspension lifts, and performance upgrades for 4x4s that actually get used.
LEARN MORE → 04Proper diagnosis using dealer-level scan tools. We find root causes, not just clear codes and send you on your way.
LEARN MORE → 0524/7 mobile breakdown response across the Fraser Coast. Purpose-built field service trucks, on-site repairs.
LEARN MORE → 06Three-stage intake and EGR clean system. Restore lost power and fuel economy without disassembly.
LEARN MORE →Looking for something else? We also offer Fleet Maintenance, Oil Catch Cans, Brake Test Shaker, Engine Rebuilds, Pre-Purchase Inspections, American Truck Upgrades, and ECU Remapping.
Callouts across the Fraser Coast, day or night. We come to you.
Every job is documented with photos and video reports so you know exactly what was found and what was done.
Fraser Coast's most trusted diesel workshop, with over 22,500 repairs completed in-house.
All repairs are backed by our workmanship warranty. No hidden costs, no unnecessary work recommended.



Core Diesel has been the Fraser Coast's go-to diesel workshop for over a decade. From logbook servicing and major engine rebuilds to ECU remapping and 24/7 mobile callouts, our team of experienced diesel technicians handles it all in-house, using the latest diagnostic tools and equipment, with a commitment to straight-talking service and zero unnecessary upselling.
"Took my 4WD to these guys when no one else could diagnose and fix it. Issue was found and fixed that day. These guys were recommended by a friend. Couldn't be happier."
Clinton Davis"Video progress the whole service and constant communication so you know what's going on. Seems like a bunch of genuine blokes who love working on cars."
Jordan Francis"Core Diesel have our entire fleet of trucks prioritised and professionally serviced. Always good advice on keeping things in tip-top shape."
Brett LukeSame-day bookings available. Call us or request a quote online.
Our team will confirm your booking within the hour during business hours. Mon–Thu 7am–4pm, Fri 7am–2pm.