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Diesel Mechanics in Australia

3,233 diesel mechanics★ 4.7 average from 3,971 reviews

About these results

Diesel mechanics by rating, then related trades.

A business is Featured only when it holds our Featured plan; Featured is a listing plan, not a rating.

3,233 diesel mechanics in Australia; listings updated 7 Oct 2026.

  1. Grafton Truck Sales & Spares

    Mechanics, Diesel Mechanics

    6 Induna St, South Grafton NSW 2460

    Directions View profile Est. 2000

    Truck and trailer parts and repairs in South Grafton, NSW, also supplying trays, tarps, bullbars, stock crates and batteries.

    • Truck Parts & Repairs
    • Trailer Parts & Repairs
    • Batteries

    6 Induna StSouth Grafton NSW 2460

    Open now · closes 6:00 pm

  2. Griffiths Truck & Trailer Fleet Maintenance

    Diesel Mechanics, Mechanics, Caravan Repairs

    18B Pendlebury Rd, Cardiff NSW 2285

    Directions View profile

    Truck and trailer fleet maintenance workshop in Cardiff, NSW, working on trucks, trailers and heavy vehicles.

    • Truck and bus repairs
    • Trailer servicing and repairs

    18B Pendlebury RdCardiff NSW 2285

    Open now · closes 5:00 pm

  3. Groundforce WA

    Diesel Mechanics, Mechanics, Auto Electricians

    1/21 Kewdale Rd, Welshpool WA 6106

    Directions View profile

    Diesel engine repair and servicing specialist in Welshpool, WA, looking after trucks, generators, mining plant and heavy machinery.

    • Diesel servicing and repairs
    • Car air conditioning

    1/21 Kewdale RdWelshpool WA 6106

    Open now · closes 5:00 pm

  4. Guttler Diesel

    Diesel Mechanics

    Unit 3/238 Schubach St, East Albury NSW 2640

    Directions View profile Est. 2022

    Diesel mechanic in East Albury, NSW for CAT engine work, fuel system reconditioning and machine repairs.

    • CAT Diesel Engine Specialist
    • CAT Fuel System Reconditioning
    • CAT Transmission & Drive Train

    Unit 3/238 Schubach StEast Albury NSW 2640

    Open now · closes 5:00 pm

  5. HD Diesel Repair Services

    Diesel Mechanics, Mechanics

    71 Clancy Rd, Gawler Belt SA 5118

    Directions View profile

    Diesel engine repair and servicing workshop in Gawler Belt, SA, covering the Gawler, Lewiston, Lyndoch and Mallala areas.

    71 Clancy RdGawler Belt SA 5118

    Open now · 24 hours

  6. Hdrs Services

    Diesel Mechanics, Mechanics, Auto Electricians

    251/253 Thompson Rd, North Geelong VIC 3215

    Directions View profile

    Diesel engine repair specialists in North Geelong, VIC, also handling air conditioning and auto electrical work for commercial vehicles.

    • Truck and bus repairs

    251/253 Thompson RdNorth Geelong VIC 3215

    Open now · closes 5:30 pm

  7. HFD Performance

    Diesel Mechanics

    30 Northern Link Cct, Shaw QLD 4818

    Directions View profile

    Diesel and petrol tuning workshop in Shaw, QLD for ECU remapping, turbo diesel tuning, diagnostics and performance upgrades.

    • Turbo diesel tuning
    • ECU remapping
    • Diagnostics

    30 Northern Link CctShaw QLD 4818

    Open now · closes 5:00 pm

  8. HM GEM Engines

    Diesel Mechanics, Mechanics

    5 Monterey Rd, Dandenong South VIC 3175

    Directions View profile

    Diesel engine repair and rebuilding specialist in Dandenong South, VIC, offering on-site servicing across the south-east suburbs.

    • Exhaust, cooling and engine repairs

    5 Monterey RdDandenong South VIC 3175

    Open now · closes 5:00 pm

  9. HM GEM Engines Brisbane

    Diesel Mechanics, Mechanics

    9 Wright Pl, Algester QLD 4115

    Directions View profile

    Engine reconditioner in Algester, QLD, rebuilding automotive and heavy-duty engines and cylinder heads.

    • Exhaust, cooling and engine repairs

    9 Wright PlAlgester QLD 4115

    Open now · closes 4:00 pm

  10. HM Transport Maintenance

    Diesel Mechanics, Mechanics, Auto Electricians, 4x4, Tyres

    21 Lockwood Rd, Shepparton VIC 3630

    Directions View profile Est. 1989

    Truck and transport maintenance business in Shepparton, VIC, covering truck repairs, brakes and suspension, diagnostics and clutch repairs.

    • Truck Repairs & Maintenanace
    • Computer Diagnostics
    • Clutch Repairs

    21 Lockwood RdShepparton VIC 3630

    Open now · closes 5:00 pm

  11. Hartwigs

    Mechanics, Diesel Mechanics, 4x4

    266 Hammond Ave, East Wagga Wagga NSW 2650

    Directions View profile Est. 1923

    Truck dealer in East Wagga Wagga, NSW, selling new and used trucks and supplying truck parts, with truck servicing.

    • New Trucks
    • Used Trucks
    • Truck Parts

    266 Hammond AveEast Wagga Wagga NSW 2650

    Open now · closes 5:00 pm

  12. Hawkdiesel

    Diesel Mechanics

    589 Bickley Rd, Maddington WA 6109

    Directions View profile

    Diesel mechanic in Maddington, WA, servicing and repairing US trucks and Detroit Diesel engines, including engine rebuilds and brake work.

    • Detroit Diesel engines
    • Brake repairs
    • Engine rebuilds

    589 Bickley RdMaddington WA 6109

    Open now · closes 5:00 pm

  13. Heavy Diesels Australia

    Diesel Mechanics, Mechanics

    9/11 Railway Terrace, Dry Creek SA 5094

    Directions View profile

    Diesel engine and truck repair specialist serving Dry Creek, SA and nearby northern Adelaide suburbs.

    • Truck and bus repairs

    9/11 Railway TerraceDry Creek SA 5094

    Open now · closes 5:00 pm

  14. Heavy Equipment Mechanical

    Diesel Mechanics

    13 Port Pirie St, Bibra Lake WA 6163

    Directions View profile

    Diesel engine repair and heavy machinery maintenance business in Bibra Lake, WA, servicing earthmoving, haulage and marine equipment.

    • Marine Services. Everything you need
    • Hydraulic Repairs
    • Inboard engine change outs

    13 Port Pirie StBibra Lake WA 6163

    Open now · closes 4:30 pm

  15. Heaydon Diesel Service

    Diesel Mechanics

    Unit 2/20 Kenworth Pl, Brendale QLD 4500

    Directions View profile

    Diesel and earthmoving machinery workshop in Brendale, QLD for breakdown repairs, diagnostics, servicing, welding and auto electrical work.

    • Breakdowns and Repairs
    • Diagnostic Services
    • Machinery Servicing

    Unit 2/20 Kenworth PlBrendale QLD 4500

    Open now · closes 5:00 pm

  16. Heights Automotive & Heavy Diesel

    Diesel Mechanics, Mechanics, 4x4

    Brisbane QLD 4000

    View profile

    Mobile mechanic in Brisbane, QLD for vehicle servicing, diagnostics and DPF regeneration, working across South East Queensland.

    • Vehicle servicing
    • Vehicle Diagnostics & Fault Finding
    • DPF Diagnostics & Regeneration

    Brisbane QLD 4000

    Open now · closes 5:00 pm

  17. Hempfield Small Motor Services

    Diesel Mechanics, Mechanics

    266 Welshpool Rd, Welshpool WA 6106

    Directions View profile

    Small motor and diesel engine repairer in Welshpool, WA, working on generators, lawn mowers and water pumps.

    • Diesel servicing and repairs

    266 Welshpool RdWelshpool WA 6106

    Open now · closes 5:00 pm

  18. Hewey's Diesel Maintenance

    Diesel Mechanics, Mechanics, Auto Electricians

    Taranganba QLD 4703

    View profile Est. 2021

    Mobile diesel maintenance business in Taranganba, QLD, attending to machinery and trucks on site, with scheduled servicing and shutdown support.

    • Mobile Breakdown Repairs
    • Mobile Truck Repairs
    • Scheduled Maintenance

    Taranganba QLD 4703

    Open now · 24 hours

  19. Hi Tech Diesel Injection

    Diesel Mechanics, Mechanics, Auto Electricians

    418 Churchill Rd, Kilburn SA 5084

    Directions View profile

    Diesel engine repair and automotive servicing workshop in Kilburn, SA, covering oil changes and diagnostics.

    • Oil change
    • Diesel servicing and repairs

    418 Churchill RdKilburn SA 5084

    Open now · closes 5:00 pm

No diesel mechanics on this page match all of these filters. Untick one, or clear the filters to see all 24 on this page.

Showing 361–384 of 3,233 diesel mechanics · filters apply to this page only

Not sure which diesel mechanic to call?

Tell us about the job and we'll match it with up to 3 diesel mechanics in Australia. Your contact details go only to businesses on a paid plan here, and after you send we tell you which businesses got them. Free, no obligation.

Get free quotes

Choosing diesel mechanics in Australia

Diesel mechanics for diesel servicing and repairs, injectors and fuel systems, DPF cleaning and truck repairs. Mechanics Directory lists 3,233 diesel mechanics in Australia. Listings show the services each business offers, and a rating where there is one.

What to check before you book

Getting started

  1. Describe the job. Your vehicle's make, model and year, what's wrong or what it needs, and when you need it done.
  2. Shortlist two or three. Use the filters above to narrow this page by website.
  3. Compare quotes. Or send one request and we'll match it with up to 3 diesel mechanics.
  4. Agree in writing. Confirm the price, what's included and when the vehicle will be ready before work begins.

Frequently asked questions

How do I choose between diesel mechanics in Australia?

Compare two or three. Ask whether they work on your make, and on light vehicles, trucks or machinery, whether they can come to you, and for a written quote for parts and labour. A business that is owner verified on Mechanics Directory has confirmed it runs the listing.

How much does a diesel service cost in Australia?

It depends on the vehicle or machine, the oil and filters it takes, and whether the injectors, turbo or DPF need work. Asking two or three local diesel mechanics for a written quote is the quickest way to see the going rate in Australia.

Do diesel mechanics need to be licensed?

Licensing depends on the work and the state. Modifications such as GVM upgrades need certifying under your state's rules, and outside Western Australia and the Northern Territory, modifications to heavy vehicles over 4.5 tonnes are regulated by the National Heavy Vehicle Regulator. Motor vehicle repair businesses must be licensed in New South Wales, Western Australia and the ACT. Elsewhere, ask the business which qualifications and licences apply to your job. Listings marked "Credentials listed" show a licence, accreditation or membership on the business's profile. We don't check it, so confirm it with whoever issued it.

What is DPF cleaning?

A diesel particulate filter (DPF) traps soot from the exhaust and burns it off on longer runs at highway speed. Lots of short trips can stop that happening, so the filter blocks and a warning light comes on. A diesel mechanic can check the filter and clean it or run a forced regeneration.

What does "serves this area" mean?

Some businesses are based in a nearby suburb but cover this area, including mobile mechanics and towing services that come to you. On suburb pages we list businesses based in the suburb first, then the ones that say they serve it.

How do free quotes work?

Tell us about the job once. We match your request with up to 3 diesel mechanics near you. A business on a paid plan here gets it with your name and contact details and can contact you directly. A business on the free plan sees the job and your suburb but not your details, so it can't contact you unless it upgrades. A business that hasn't claimed its listing sees your request only once it claims. After you send, we tell you which applies to each business. It's free and there's no obligation.