Diesel Mechanic Maryborough
Trusted Local Experts at Core Diesel
Servicing. Diagnostics. Performance. All Under One Roof.
If you’re looking for a reliable diesel mechanic in Maryborough, you’ve found the right crew.
At Core Diesel, we do more than just tuning — we’re a full-service diesel workshop built for local drivers who expect honest advice, solid workmanship, and real results.
Whether it’s a fleet ute that needs servicing, a 4×4 that’s lost power, or an American truck due for a tune-up, we’ve got the tools and know-how to keep your rig performing at its best.
Why Choose Core Diesel for Diesel Repairs & Servicing
Most mechanics can change oil and filters. But modern diesel engines need more than that.
They rely on precise fuel delivery, clean airflow, and healthy electronics — and that’s where our experience makes the difference.
What Sets Core Diesel Apart?
Core diesel have been nothing but helpful over the years we have been dealing with them. Always willing to help both in work hours and after hours. Nothing seems to be a problem.
Mark M
What Our Diesel Mechanics Do
We handle all mechanical, electronic, and performance work in-house:
Routine Servicing & Maintenance
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Logbook servicing (all makes and models)
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Oil, filter, and fluid changes
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Cooling, brake, and driveline inspections
Diagnostics & Repairs
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Check-engine light and fault code scanning
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Injector testing, EGR and DPF checks
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Turbo, intercooler, and intake repairs
Performance & Tuning
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ECU remapping and custom dyno tuning
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Exhaust and intake upgrades
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Towing, touring, and off-road performance packages
Whether you need a simple service or want to make your diesel pull harder and run cleaner, Core Diesel does it all — safely, locally, and professionally.
How It Works
Step 1
Vehicle AssessmentStep 1
We start with a full diagnostic check and mechanical inspection.
Step 2
Service or RepairStep 2
Our team performs the required work using quality parts and fluids suited for Australian conditions.
Step 3
Dyno & Road Verification (if applicable)Step 3
For performance jobs, we back every tune with dyno-verified data.
You’ll leave knowing exactly what was done — and what your diesel’s ready for next.
FAQs
We’re based in Maryborough and service drivers across the Fraser Coast — including Hervey Bay, Howard, Tiaro, and nearby regional areas.
👉 Book Your Diesel Service in Maryborough
Call (07) 4763 7601 or request your free quote today.
Yes — in fact, it’s best done on a freshly serviced engine. Our dyno-verified tunes are designed for Aussie fuel and towing conditions, with reliability front of mind.
For fleet and heavy-vehicle customers, yes. We can arrange on-site maintenance or pre-trip inspections by appointment.
Absolutely. Every Core Diesel service includes a scan for injector balance, DPF health, and sensor performance. We can also carbon-clean if needed.
Everything from dual-cab utes and 4x4s to American trucks and work fleets. We handle all major brands — Toyota, Isuzu, Ford, RAM, Chevy, Mitsubishi, and Nissan.
Yes. We follow manufacturer guidelines and use approved parts and fluids, so your warranty stays intact.
Absolutely — our team is available 24/7 for urgent breakdowns and repairs.**
** Applies to Trucks, plant/ equipment/ machines only
Yes, as authorised agents for Mack, UD & Volvo, and by following manufacturer specifications, we maintain your warranty.
We use genuine or OEM-quality parts to ensure reliability and compliance with manufacturer standards.
Yes, we regularly service modern utes, 4WDs, and SUVs, as well as older models.
For most vehicles, every 7,500–10,000km is ideal. If you tow, drive off-road, or do short trips around town, service sooner — Queensland heat and dust are rough on oil and filters.
