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, Auto Electricians, 4x4, Tyres, Diesel Mechanics
118 Balgownie Rd, Balgownie NSW 2519
Mechanic in Balgownie, NSW for logbook servicing, brake repairs, diagnostics and safety checks.
118 Balgownie RdBalgownie NSW 2519
Closed · opens 8:00 am
Mechanics, Auto Electricians, Diesel Mechanics, Caravan Repairs
Mittagong NSW 2575
Mobile mechanic in Mittagong, NSW for mechanical and diesel repairs, pre-purchase inspections and mobile servicing across the Southern Highlands.
Mittagong NSW 2575
Open now · 24 hours
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
206 High St, Wauchope NSW 2446
4x4 performance centre in Wauchope, NSW for diesel tuning, performance upgrades, suspension work and GVM upgrades.
206 High StWauchope NSW 2446
Closed · opens 7:00 am
Mechanics, Auto Electricians, Diesel Mechanics
Koolpari 46R Durraween Ln, Dubbo NSW 2830
Mobile mechanic and workshop in Dubbo, NSW for heavy vehicle repairs, hydraulics, auto electrical work and welding.
Koolpari 46R Durraween LnDubbo NSW 2830
Closed · opens 8:00 am
1A/144 Lake RdPort Macquarie NSW 2444
Closed · opens 9:00 am
Mechanics, Auto Electricians, 4x4, Diesel Mechanics
129a Bridge St, West Tamworth NSW 2340
Mechanic in West Tamworth, NSW for logbook servicing, dyno tuning, suspension work and pink slip inspections on utes, 4WDs and cars.
129a Bridge StWest Tamworth NSW 2340
Closed · opens 8:00 am
Mechanic in Cooma, NSW for logbook servicing, brake and clutch repairs, and exhaust and cooling work.
54 Bombala StCooma NSW 2630
Closed · opens 8:30 am
Mechanics, Auto Electricians, Tyres, Diesel Mechanics
47 Fisher St, West Wollongong NSW 2500
Mechanic in West Wollongong, NSW for car servicing, brake and clutch repairs, rego checks and auto electrical work.
47 Fisher StWest Wollongong NSW 2500
Closed · opens 8:00 am
Auto Electricians, Mechanics, 4x4, Diesel Mechanics, Caravan Repairs
Nethercote NSW 2549
Mobile auto electrician and mechanic in Nethercote, NSW, covering battery replacements, custom wiring, fault testing and caravan repairs.
Nethercote NSW 2549
Closed · opens 9:00 am
Heavy machinery and truck parts and repair business in Cootamundra, NSW, covering diesel injectors, engine reconditioning and tractor repairs.
28 King DrCootamundra NSW 2590
Closed · opens 9:00 am
Tyres, Mechanics, 4x4, Diesel Mechanics
18 Pendlebury Rd, Cardiff NSW 2285
Suspension and wheel alignment specialist in Cardiff, NSW for trucks, buses, caravans, 4x4s, utes and vans.
18 Pendlebury RdCardiff NSW 2285
Closed · opens 8:00 am
36 McKay StMacksville NSW 2447
Closed · opens 7:30 am
Mechanic in Cardiff, NSW for logbook servicing, brake and clutch repairs, suspension work and pink and blue slip inspections.
Unit 8/28 Pendlebury RdCardiff NSW 2285
Closed · opens 8:00 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
61 Albatross Rd, Nowra NSW 2541
Mechanic in Nowra, NSW for logbook servicing, pink and blue slips, tyres and wheel alignments.
61 Albatross RdNowra NSW 2541
Closed · opens 8:30 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics, Caravan Repairs, Towing
17 Piper Dr, Ballina NSW 2478
Mechanic in Ballina, NSW for logbook servicing, brake and clutch repairs, auto electrical work and roadworthy inspections.
17 Piper DrBallina NSW 2478
By appointment
Mechanics, 4x4, Tyres, Diesel Mechanics, Caravan Repairs
4/ 522 High St, Maitland NSW 2320
Tyre and auto service workshop in Maitland, NSW for logbook servicing, mechanical repairs, rego inspections and wheel alignments.
4/ 522 High StMaitland NSW 2320
Closed · opens 8:00 am
Mechanics, Auto Electricians, Tyres, Diesel Mechanics
120 Pacific Hwy, Swansea NSW 2281
Mechanic in Swansea, NSW for servicing, brake and clutch repairs, diagnostics and pink and blue slips.
120 Pacific HwySwansea NSW 2281
Closed · opens 7:30 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics, Towing
1/ 9 Johnson Rd, Tuggerah NSW 2259
Mechanic in Tuggerah, NSW for logbook servicing, brake and clutch repairs, wheel alignments and roadworthy inspections.
1/ 9 Johnson RdTuggerah NSW 2259
Closed · opens 7:30 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics, Caravan Repairs
3/227 Old Hume Hwy, Mittagong NSW 2575
Mechanic in Mittagong, NSW for logbook servicing, brake and clutch repairs, auto electrical work and wheel alignments.
3/227 Old Hume HwyMittagong NSW 2575
Closed · opens 7:00 am
Auto Electricians, Mechanics, 4x4, Tyres, Diesel Mechanics
18 Victoria St, Taree NSW 2430
Auto mechanic and parts shop in Taree, NSW, covering car servicing, brakes, batteries and engine diagnostics.
18 Victoria StTaree NSW 2430
Closed · opens 8:30 am
Auto Electricians, Mechanics, 4x4, Diesel Mechanics, Caravan Repairs, Towing
70 Memorial Ave, Blackwall NSW 2256
Auto electrician in Blackwall, NSW for auto electrical repairs, car air conditioning and vehicle diagnostics.
70 Memorial AveBlackwall NSW 2256
Closed · opens 8:15 am
Tyres, Mechanics, Auto Electricians, 4x4, Diesel Mechanics
78 River St, Dubbo NSW 2830
Tyre and suspension shop in Dubbo, NSW, for tyre repairs, wheel alignments, truck and agricultural tyres, batteries and suspension work.
78 River StDubbo NSW 2830
Closed · opens 7:30 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
12 Young St, West Gosford NSW 2250
Mechanic and tyre service in West Gosford, NSW for logbook servicing, diesel repairs, rego checks and tyre fitting.
12 Young StWest Gosford NSW 2250
Closed · opens 8:00 am
Auto Electricians, Mechanics, 4x4, Diesel Mechanics, Towing
477 Pacific Hwy, Belmont NSW 2280
Auto electrician in Belmont, NSW for auto electrical repairs, air conditioning regas, alternators and dual battery systems.
477 Pacific HwyBelmont NSW 2280
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 409–432 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.
