MechanicsDirectory Upgrade to Featured Get free quotes

Australia's directory of mechanics and motoring services

MechanicsDirectory
Get free quotesFree · up to 3 businesses

Get free quotes

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

Get free quotes

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. Harris Engine motorsports

    Mechanics, Diesel Mechanics

    2/80-84 Milperra Rd, Revesby NSW 2212

    Directions View profile

    Engine rebuilding and diesel repair specialists in Revesby, NSW, also handling diesel engine servicing and tune-ups.

    • Exhaust, cooling and engine repairs

    2/80-84 Milperra RdRevesby NSW 2212

    Closed · opens 8:30 am

  2. Hartrite

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

    285 Copland St, East Wagga Wagga NSW 2650

    Directions View profile Credentials listed Est. 2000

    Mechanic in East Wagga Wagga, NSW for logbook servicing, brake repairs, auto electrical work and roadworthy inspections.

    • Brake Service, Repair and Testing
    • Auto Electrical Service, Diagnostics and…
    • Full Car Service and Log Book Service

    285 Copland StEast Wagga Wagga NSW 2650

    Closed · opens 7:30 am

  3. Harts Automotive Services

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

    11/ 16-22 Cross St, Brookvale NSW 2100

    Directions View profile Est. 1928

    Mechanic in Brookvale, NSW for car, 4x4 and truck servicing, brakes and clutches, tyres and wheel alignments.

    • Brakes & Clutches Servicing
    • Car Servicing & Maintenance
    • 4×4 Suspension Upgrades

    11/ 16-22 Cross StBrookvale NSW 2100

    Closed · opens 7:30 am

  4. Heavy Mechanical Solutions

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

    4/ 5 Leo Lewis Close, Toronto NSW 2283

    Directions View profile Est. 2022

    Heavy diesel and plant mechanics in Toronto, NSW for heavy vehicle repairs, light vehicle servicing and roadside breakdown callouts.

    • Heavy Vehicle Repairs & Services
    • Roadside Breakdown Callouts
    • Heavy Diesel Mechanics

    4/ 5 Leo Lewis CloseToronto NSW 2283

    Closed · opens 7:00 am

  5. Helensburgh Car Services

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

    187 Parkes Street, Helensburgh NSW 2508

    Directions View profile Credentials listed Est. 1986

    Mechanic in Helensburgh, NSW for logbook servicing, brake work, auto electrical repairs and safety inspections.

    • Logbook Servicing
    • Brake Component Replacements
    • Auto Electrical Services

    187 Parkes StreetHelensburgh NSW 2508

    Closed · opens 8:00 am

  6. Heng’s Garage

    Mechanics, Diesel Mechanics

    239 Railway Pde, Cabramatta NSW 2166

    Directions View profile

    Heng's Garage in Cabramatta, NSW handles vehicle repairs, diesel engine work and vehicle inspections.

    • Vehicle and pre-purchase inspections

    239 Railway PdeCabramatta NSW 2166

    Closed · opens 9:00 am

  7. Hi-Tec Vehicle Management

    Mechanics, Diesel Mechanics

    11 Elwin Dr, Orange NSW 2800

    Directions View profile Credentials listed Est. 2018

    Mechanic in Orange, NSW for car servicing, brake and clutch repairs, transmission servicing and LPG work.

    • Car servicing
    • Brake & Clutch repairs
    • Full transmission servicing - New & Old

    11 Elwin DrOrange NSW 2800

    Closed · opens 8:00 am

  8. Highland Truck and Trailer Repairs

    Mechanics, Diesel Mechanics, Caravan Repairs

    Arina Rd, Bargo NSW 2574

    Directions View profile

    Truck and trailer repair business in Bargo, NSW, handling truck repairs, trailer servicing and metal fabrication.

    • Truck and bus repairs
    • Trailer servicing and repairs

    Arina RdBargo NSW 2574

    Closed · opens 8:00 am

  9. Highlands Automotive Services

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

    60 Hopson Street, Douglas Park NSW 2569

    Directions View profile Est. 2005

    Mechanic in Douglas Park, NSW for logbook servicing, brake and clutch repairs, tyres and wheel balancing.

    • Log Book Servicing
    • Brake & Clutch Repairs
    • Tyres & Wheel Balancing

    60 Hopson StreetDouglas Park NSW 2569

    Closed · opens 7:00 am

  10. Hornsby Service Centre

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

    81A Hunter St, Waitara NSW 2077

    Directions View profile Est. 1950

    Car servicing and repair workshop in Waitara, NSW, covering brakes, clutches, engine work, pink slips and vehicle inspections.

    • Vehicle Servicing
    • Brake Repairs
    • Roadworthy Certification

    81A Hunter StWaitara NSW 2077

    Closed · opens 7:30 am

  11. Hornsby Trucks

    Mechanics, Diesel Mechanics

    2B/21 King Rd, Hornsby NSW 2077

    Directions View profile

    Truck and car repair business in Hornsby, NSW, serving the surrounding suburbs.

    • Truck and bus repairs

    2B/21 King RdHornsby NSW 2077

    Closed · opens 8:00 am

  12. Hunter Automotive Solutions

    Mechanics, Auto Electricians, 4x4, Diesel Mechanics

    1517 Elderslie Rd, Mitchells Flat NSW 2330

    Directions View profile Credentials listed Est. 2016

    Mechanical workshop in Mitchells Flat, NSW for logbook servicing, diesel fault diagnostics, suspension work and DPF cleaning.

    • Diesel Fault Diagnostics & Repairs
    • Vehicle Suspension Repairs & Services
    • Minor Logbook Servicing

    1517 Elderslie RdMitchells Flat NSW 2330

    Closed · opens 8:00 am

  13. Hunter High Performance

    Mechanics, 4x4, Diesel Mechanics

    3315 Clarence Town Rd, Brookfield NSW 2420

    Directions View profile Est. 2020

    Diesel tuning and performance specialist in Brookfield, NSW, for dyno tuning, ECU remapping and 4WD upgrades.

    • Diesel Performance Upgrades
    • Turbo Fitment
    • Dyno Tuning

    3315 Clarence Town RdBrookfield NSW 2420

    Closed · opens 8:00 am

  14. Hybrida Marine

    Mechanics, Diesel Mechanics

    Red Rock NSW 2456

    View profile Est. 2022

    Mobile marine mechanic in Red Rock, NSW, handling outboards, inboards and petrol or diesel engine servicing around Coffs Harbour.

    • Diagnostics & Repairs
    • Petrol & Diesel Engine Servicing
    • 12/24V Electrical System Servicing

    Red Rock NSW 2456

    Closed · opens 7:00 am

  15. IVECO Sydney

    Mechanics, Diesel Mechanics

    Showroom 1 McCormack St, Arndell Park NSW 2148

    Directions View profile

    IVECO truck dealership in Arndell Park, NSW, for new and used truck sales, finance, servicing and genuine parts.

    • Genuine IVECO replacement parts

    Showroom 1 McCormack StArndell Park NSW 2148

    Closed · opens 8:00 am

  16. Illawarra Tuning & Mechanical

    Mechanics, Auto Electricians, Diesel Mechanics

    152B Industrial Rd, Oak Flats NSW 2529

    Directions View profile Est. 1995

    Mechanic in Oak Flats, NSW for logbook servicing, brake and clutch work, roadworthy inspections and vehicle diagnostics.

    • Logbook Servicing
    • Roadworthy Certificate Inspections
    • Vehicle Diagnostics

    152B Industrial RdOak Flats NSW 2529

    Closed · opens 7:30 am

  17. Illawarra's Automotive Specialists

    Mechanics, Auto Electricians, 4x4, Diesel Mechanics

    73 Hargraves Ave, Albion Park Rail NSW 2527

    Directions View profile Credentials listed Est. 2017

    High-performance mechanic in Albion Park Rail, NSW for dyno tuning, engine reconditioning, logbook servicing and custom car building.

    • Dyno Testing & Tuning
    • Engine Reconditioning
    • Logbook Servicing

    73 Hargraves AveAlbion Park Rail NSW 2527

    Closed · opens 8:00 am

  18. International Autohaus

    Mechanics, Auto Electricians, Diesel Mechanics

    3 Bermill St, Rockdale NSW 2216

    Directions View profile

    Mercedes-Benz and AMG specialist workshop in Rockdale, NSW for log book servicing, transmission overhauls and suspension rebuilds.

    • Transmission Overhauls
    • General Log Book Servicing
    • Suspension Rebuilds

    3 Bermill StRockdale NSW 2216

    Closed · opens 8:00 am

  19. Intune Mechanical Solutions

    Mechanics, 4x4, Tyres, Panel Beaters, Diesel Mechanics

    Unit 350 Keira St, Wollongong NSW 2500

    Directions View profile Est. 2002

    Mechanical workshop in Wollongong, NSW for logbook servicing, brake and clutch repairs, wheel alignments and rego inspections.

    • Major & Minor Logbook Services
    • Wheel Alignments
    • Brake Repairs

    Unit 350 Keira StWollongong NSW 2500

    Closed · opens 8:00 am

  20. Inverell Steering Specialists Mechanical Repairs

    Mechanics, Auto Electricians, Tyres, Diesel Mechanics

    56 Oliver St, Inverell NSW 2360

    Directions View profile

    Mechanical workshop in Inverell, NSW for oil changes, gearbox work, wheel alignments and air conditioning servicing.

    • Oil change
    • Transmission and gearbox repairs
    • Wheel alignment and balancing

    56 Oliver StInverell NSW 2360

    Closed · opens 8:00 am

  21. Inverell Truck & Diesel Repairs

    Mechanics, Diesel Mechanics

    103-105 Ring St, Inverell NSW 2360

    Directions View profile

    Truck and diesel mechanics in Inverell, NSW, handling truck repairs and diesel engine repairs.

    • Truck repairs
    • Diesel repairs
    • European and make specialist servicing

    103-105 Ring StInverell NSW 2360

    Closed · opens 8:00 am

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 697–720 of 953 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 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.

Get free quotes

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.