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Describe the job once and we'll match it with up to 3 diesel mechanics in New South Wales.

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Diesel Mechanics in New South Wales

953 diesel mechanics★ 4.7 average from 1,588 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.

953 diesel mechanics in New South Wales; listings updated 7 Oct 2026.

  1. Garage76 Automotive

    Mechanics, Diesel Mechanics

    126 Gilmore Rd, Queanbeyan NSW 2620

    Directions View profile

    4WD and diesel performance workshop in Queanbeyan, NSW, building, maintaining and repairing touring vehicles.

    126 Gilmore RdQueanbeyan NSW 2620

    Closed · opens 8:00 am

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  2. Genquip Power Products

    Diesel Mechanics

    45 Riverside Rd, Chipping Norton NSW 2170

    Directions View profile

    Genquip Power Products in Chipping Norton, NSW supplies diesel engines, generators and water pumps for industrial and agricultural use.

    • Industrial engines
    • Generators
    • Water pumps

    45 Riverside RdChipping Norton NSW 2170

    Closed · opens 9:00 am

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  3. Geoff Conley Automotive

    Mechanics, Tyres, Diesel Mechanics

    21 Weston St, Culburra Beach NSW 2540

    Directions View profile Est. 2000

    Mechanic in Culburra Beach, NSW for car servicing, mechanical repairs, tyre sales and wheel alignments.

    • Car Service & all mechanical repairs
    • Tyre Sales
    • Wheel Alignment

    21 Weston StCulburra Beach NSW 2540

    Closed · opens 8:00 am

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  4. Gilbert & Roach Trucks Gosford

    Mechanics, Diesel Mechanics

    Cnr Manns & 2 Yandina Rd, West Gosford NSW 2250

    Directions View profile

    Truck dealer and workshop in West Gosford, NSW, for new and used trucks, truck and bus repairs, and truck equipment and parts.

    • Truck and bus repairs

    Cnr Manns & 2 Yandina RdWest Gosford NSW 2250

    Closed · opens 8:00 am

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  5. Gilbert & Roach Trucks Huntingwood

    Mechanics, Diesel Mechanics

    8 Huntingwood Dr, Huntingwood NSW 2148

    Directions View profile

    Truck dealership in Huntingwood, NSW, selling new Isuzu, Kenworth and DAF trucks and used trucks, with truck equipment, parts and repairs.

    • Truck and bus repairs

    8 Huntingwood DrHuntingwood NSW 2148

    Closed · opens 7:30 am

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  6. Gilbert & Roach Trucks Narellan

    Mechanics, Diesel Mechanics

    7 Millwood Ave, Narellan NSW 2567

    Directions View profile

    Truck dealer and mechanic in Narellan, NSW, selling new and used Isuzu, Kenworth and DAF trucks and handling truck and bus repairs.

    • Truck and bus repairs

    7 Millwood AveNarellan NSW 2567

    Closed · opens 8:00 am

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  8. Gladesville Automotive

    Mechanics, Auto Electricians, Diesel Mechanics

    13/28 Buffalo Rd, Gladesville NSW 2111

    Directions View profile

    Car repair workshop in Gladesville, NSW for clutch and brake jobs, petrol and diesel mechanical work, auto electrical repairs and servicing.

    • Clutch Repair
    • Brake Repair
    • Auto Electrical Repair

    13/28 Buffalo RdGladesville NSW 2111

    Closed · opens 8:00 am

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  10. Glover Mechanical and Breakdown

    Mechanics, Diesel Mechanics, Caravan Repairs

    30 Silva Ave, Queanbeyan NSW 2620

    Directions View profile Est. 2009

    Mechanical workshop in Queanbeyan, NSW for heavy vehicle, earthmoving, plant and agricultural equipment repairs and servicing.

    • Truck repairs & maintenance
    • Heavy vehicle repairs & maintenance
    • Earthmoving machinery & equipment repair…

    30 Silva AveQueanbeyan NSW 2620

    Closed · opens 8:00 am

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  11. Go2 Automotive

    Mechanics, Auto Electricians, Tyres, Diesel Mechanics

    Unit 2/247 Princes Hwy, Unanderra NSW 2526

    Directions View profile Est. 2014

    Go2 Automotive is an auto repair workshop in Unanderra, NSW, covering logbook servicing, rego checks, engine repairs, diagnostics and tyres.

    • New Car Logbook Servicing
    • Vehicle Diagnostics
    • Tyres

    Unit 2/247 Princes HwyUnanderra NSW 2526

    Closed · opens 8:30 am

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  12. Goodwin 4x4 Parts and Service

    Mechanics, Diesel Mechanics

    25 Gulson St, Goulburn NSW 2580

    Directions View profile Est. 2017

    4x4 parts and service business in Goulburn, NSW, covering 4x4 mechanical work, transmission repairs, diesel engine repairs and car diagnostics.

    • 4x4 Mechanics
    • Transmission Repair
    • Diesel Engine Repair

    25 Gulson StGoulburn NSW 2580

    Closed · opens 9:00 am

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  13. Goodyear Autocare Wagga Wagga

    Mechanics, Auto Electricians, Tyres, Diesel Mechanics

    32 Hammond Ave, East Wagga Wagga NSW 2650

    Directions View profile Est. 1898

    Goodyear Autocare Wagga Wagga in East Wagga Wagga, NSW for logbook servicing, brakes, wheel alignments and tyres.

    • Wheel Alignments
    • Log Book Servicing
    • Brakes Repair & Replacement

    32 Hammond AveEast Wagga Wagga NSW 2650

    Closed · opens 8:00 am

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  14. Gordon Fernies Automotive Services

    Mechanics, Tyres, Diesel Mechanics

    Site 1 63 Blaxland Rd, Campbelltown NSW 2560

    Directions View profile Est. 1979

    Mechanic in Campbelltown, NSW for logbook servicing, brake repairs, tyres and wheel alignments, plus LPG work and rego inspections.

    • New Tyres & Wheel Alignments
    • New Car Log Book Servicing
    • Brake Repairs

    Site 1 63 Blaxland RdCampbelltown NSW 2560

    Closed · opens 8:00 am

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  15. Gradys Automotive

    Mechanics, Auto Electricians, Tyres, Diesel Mechanics, Caravan Repairs, Towing

    491 Banna Ave, Griffith NSW 2680

    Directions View profile Credentials listed Est. 2002

    Mechanic in Griffith, NSW for logbook servicing, brake and clutch work, wheel alignments and roadworthy inspections.

    • Wheel Alignments
    • Brake Servicing
    • Log Book Service

    491 Banna AveGriffith NSW 2680

    Closed · opens 8:00 am

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  16. Grafton Automotive

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

    39 Villiers St, Grafton NSW 2460

    Directions View profile Est. 2019

    Mechanic in Grafton, NSW for logbook servicing, brake repairs, wheel alignments and vehicle inspections.

    • Brake Repairs
    • Logbook Servicing
    • Wheel Alignments

    39 Villiers StGrafton NSW 2460

    Closed · opens 8:00 am

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  17. Grafton Diesel 4x4 and Mechanical

    Mechanics, Diesel Mechanics

    9 Electra Cres, South Grafton NSW 2460

    Directions View profile

    Mechanical workshop in South Grafton, NSW for diesel and petrol engine repair, diagnostics and log book servicing, serving Grafton and surrounds.

    • Oil change

    9 Electra CresSouth Grafton NSW 2460

    Closed · opens 8:00 am

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  18. Grafton Truck Sales & Spares Pty Ltd

    Tyres, Mechanics, Auto Electricians, Diesel Mechanics

    6 Induna St, South Grafton NSW 2460

    Directions View profile Est. 2022

    Truck and 4WD parts supplier in South Grafton, NSW, with truck and trailer repairs and a wide range of spares and accessories.

    • Batteries
    • Truck repairs
    • Supply of truck and 4x4 parts

    6 Induna StSouth Grafton NSW 2460

    Closed · opens 8:00 am

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  19. Grauls Mechanical

    Mechanics, Auto Electricians, Diesel Mechanics

    7 Resolution Dr, Unanderra NSW 2526

    Directions View profile Est. 2014

    Mechanic in Unanderra, NSW for brake repairs, engine diagnostics, oil changes, auto electrical work and Blue Slips.

    • Brake Repairs
    • Auto Engine Diagnostics
    • Blue Slips

    7 Resolution DrUnanderra NSW 2526

    Closed · opens 8:00 am

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  20. Griffith Almet Engineering

    4x4, Diesel Mechanics

    22 Lasscock Rd, Griffith NSW 2680

    Directions View profile Est. 2005

    Engineering and fabrication workshop in Griffith, NSW, making custom ute trays and working in aluminium, stainless and mild steel.

    • Aluminium Fabrications
    • General Engineering
    • Custom Tray Fabrications

    22 Lasscock RdGriffith NSW 2680

    Closed · opens 8:00 am

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  21. Griffith Auto Air & Electricial

    Auto Electricians, Mechanics, Diesel Mechanics, Caravan Repairs

    995 Rae Rd, Griffith NSW 2680

    Directions View profile Credentials listed Est. 2006

    Auto electrician and car air conditioning specialist in Griffith, NSW, also handling vehicle diagnostics, fuel injection and caravan wiring.

    • Providing Advanced Vehicle Diagnostics
    • Car Air Conditioning Service & Repair
    • Install & Repair All Automotive Electric…

    995 Rae RdGriffith NSW 2680

    Closed · opens 8:00 am

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  22. Griffith Automotive Repairs

    Mechanics, 4x4, Diesel Mechanics

    Unit 15/16-24 Whybrow St, Griffith NSW 2680

    Directions View profile

    Griffith Automotive Repairs is an automotive workshop in Griffith, NSW, covering logbook servicing, batteries, exhausts and suspension.

    • Logbook servicing
    • Car batteries
    • Exhaust, cooling and engine repairs

    Unit 15/16-24 Whybrow StGriffith NSW 2680

    Closed · opens 8:00 am

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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 673–696 of 953 diesel mechanics · filters apply to this page only

Diesel Mechanics by city in New South Wales

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Not sure which diesel mechanic to call?

Tell us about the job and we'll match it with up to 3 diesel mechanics in New South Wales. 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.

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Choosing diesel mechanics in New South Wales

Diesel mechanics for diesel servicing and repairs, injectors and fuel systems, DPF cleaning and truck repairs. Mechanics Directory lists 953 diesel mechanics in New South Wales. 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 listed credentials and 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 New South Wales?

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 New South Wales?

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 New South Wales.

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. In New South Wales, a business that repairs vehicles needs a motor vehicle repairer licence from NSW Fair Trading, and the people doing the work generally need a tradesperson certificate (some minor work is exempt). You can check a licence on the NSW Government's online licence check. In New South Wales, autogas (LPG) work is regulated under the Gas and Electricity (Consumer Safety) Regulation 2018; ask for the autogas licence. 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.