Australia's directory of mechanics and motoring services
Describe the job once and we'll match it with up to 3 diesel mechanics in New South Wales.
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.
Mechanics, Diesel Mechanics
1018 Canley Vale Rd, Wetherill Park NSW 2164
Diesel engine repairer and automotive parts supplier in Wetherill Park, NSW, serving trade and private customers.
1018 Canley Vale RdWetherill Park NSW 2164
European car specialist in Artarmon, NSW for servicing, oil changes, brake pads and rotors, modifications and restorations.
51 Sawyer LnArtarmon NSW 2064
Closed · opens 7:30 am
Cosgrove Truck Parts in Yagoona, NSW supplies car transmissions and truck equipment and parts.
43 Rookwood RdYagoona NSW 2199
Closed · opens 7:30 am
Mechanics, Auto Electricians, Diesel Mechanics
49C Spofforth St, Cremorne NSW 2090
Mechanic in Cremorne, NSW for oil changes, brake repairs, engine rebuilds, air conditioning servicing and electrical work.
49C Spofforth StCremorne NSW 2090
Closed · opens 7:30 am
Mechanics, Auto Electricians, 4x4, Diesel Mechanics
77 River St, Dubbo NSW 2830
Truck and car repair workshop in Dubbo, NSW for logbook servicing, brake and clutch repairs, truck servicing and rego inspections.
77 River StDubbo NSW 2830
Closed · opens 8:00 am
Performance and tuning workshop in Smithfield, NSW, doing dyno tuning, engine building and race car preparation.
6 Tarlington PlSmithfield NSW 2164
Closed · opens 8:00 am
Mechanic in Grafton, NSW, working on diesel engines and general mechanical repairs for drivers in Grafton and surrounds.
18/20 Induna StGrafton NSW 2460
Closed · opens 9:00 am
Cummins Wodonga in Wodonga, NSW supplies and services generators, fuel systems and turbochargers, with in-shop service and power systems work.
9-11 McKoy StreetWodonga NSW 3690
Closed · opens 9:00 am
Mobile diesel mechanic in Pembrooke, NSW servicing diesel vehicles and machinery, Cat machinery, fleet trucks and farm machinery.
113 Brookhouse RdPembrooke NSW 2446
Open now · 24 hours
Mobile diesel mechanic in Port Macquarie, NSW for diesel vehicle and machinery repairs, Cat machinery, fleet trucks and parts fabrication.
24 Geebung DrPort Macquarie NSW 2444
Open now · 24 hours
Parts supplier in Kempsey, NSW for new, used and reconditioned earthmoving and mining components, including Caterpillar, Hitachi, Komatsu and Liebherr.
476 Macleay Valley WayKempsey NSW 2440
Closed · opens 8:30 am
Mechanics, Auto Electricians, 4x4, Diesel Mechanics
1 Red Hill Rd, Kooringal NSW 2650
Mobile heavy vehicle mechanic in Kooringal, NSW for truck servicing and repairs, auto electrical work and truck air conditioning.
1 Red Hill RdKooringal NSW 2650
Closed · opens 7:00 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
18/62 Argyle St, South Windsor NSW 2756
Land Rover specialist in South Windsor, NSW for servicing, diagnostics, engine rebuilds and suspension upgrades.
18/62 Argyle StSouth Windsor NSW 2756
Closed · opens 8:00 am
Diesel and turbo specialists in Wagga Wagga, NSW, for turbocharger sales and repairs, fuel injection work and dyno diagnostics.
364 Edward StWagga Wagga NSW 2650
Closed · opens 8:00 am
Field service for farm machinery and truck equipment in Woolgoolga, NSW, serving Coramba, Nana Glen, Bucca, Grafton and Coffs Harbour surrounds.
1/4 Bosworth RdWoolgoolga NSW 2456
Closed · opens 7:30 am
Steel supply, fabrication and metal polishing in Llandilo, NSW, with truck and bus repairs and truck equipment and parts.
1234 Galvin RdLlandilo NSW 2747
Open now · 24 hours
Mechanics, Auto Electricians, Diesel Mechanics
Unit 2/176 Sunnyholt Rd, Blacktown NSW 2148
Mechanic and auto electrician in Blacktown, NSW, handling mechanical repairs, hybrid maintenance, battery replacements and vehicle inspections.
Unit 2/176 Sunnyholt RdBlacktown NSW 2148
Closed · opens 6:00 am
Diesel performance workshop in Ben Bullen, NSW, tuning 4x4s, fleets and farm vehicles for more power and better fuel use.
3076 Castlereagh HwyBen Bullen NSW 2790
Closed · opens 9:00 am
Mechanics, Auto Electricians, Diesel Mechanics, Caravan Repairs
40 Wakaden St, Griffith NSW 2680
Mechanic in Griffith, NSW for logbook servicing, brake and clutch work, roadworthy inspections and caravan and trailer servicing.
40 Wakaden StGriffith NSW 2680
Closed · opens 8:00 am
Mechanic in Ballina, NSW for rego inspections, logbook servicing, brake and clutch repairs and wheel alignments.
Shop 5/166 174 River StBallina NSW 2478
Closed · opens 8:00 am
Mechanical workshop in Dubbo, NSW for oil changes, driveshaft repairs and work on trucks, tractors and cars.
92 Fitzroy StDubbo NSW 2830
Closed · opens 8:00 am
Mechanics, 4x4, Diesel Mechanics
328 Blende St, Broken Hill NSW 2880
Driveline Services Australia in Broken Hill, NSW for underbody and transmission work, mechanical repairs, pink slips and exhaust work.
328 Blende StBroken Hill NSW 2880
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 625–648 of 953 diesel mechanics · filters apply to this page only
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.
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.
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.
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.
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.
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.
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.
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.
