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
Unit 2/49 Central Hills Dr, Gregory Hills NSW 2557
Truck repair and parts business in Gregory Hills, NSW, also offering crane services for heavier lifting work.
Unit 2/49 Central Hills DrGregory Hills NSW 2557
Closed · opens 7:00 am
Diesel mechanic in Forbes, NSW for diesel engine repair and rebuilding, truck servicing, auto electrical work and hydraulics.
2-6 Hereford StForbes NSW 2871
Closed · opens 7:00 am
Mobile diesel mechanic in Grafton, NSW for diesel and engine repairs, truck repairs and brake booster repairs.
Grafton NSW 2460
Open now · 24 hours
Truck and bus repairer in Marulan, NSW, handling heavy vehicle repairs, scheduled maintenance and truck parts.
Marulan NSW 2579
Closed · opens 8:30 am
Mechanics, Diesel Mechanics, Tyres
18 Modica Cres, Buronga NSW 2739
Truck repair, wheel alignment and parts business in Buronga, NSW, serving operators across the Mildura and Wentworth region.
18 Modica CresBuronga NSW 2739
Closed · opens 8:00 am
Diesel Mechanics, Mechanics, 4x4, Caravan Repairs
1 Turnbull Cl, Pemulwuy NSW 2145
Truck and bus parts supplier in Pemulwuy, NSW, covering drivetrain, braking, cooling and suspension components.
1 Turnbull ClPemulwuy NSW 2145
Closed · opens 7:30 am
Truck and bus repairer in Wagga Wagga, NSW, handling repairs, servicing, parts and accessories.
2 Say StWagga Wagga NSW 2650
Closed · opens 7:30 am
Diesel and hydraulic specialists in Emu Plains, NSW, repairing diesel engines and servicing hydraulics on trucks and heavy machinery.
1A/17 Pullman PlEmu Plains NSW 2750
Closed · opens 7:00 am
Diesel engine supplier in McDougalls Hill, NSW, offering diesel engines, parts, aftersales service and maintenance programs.
42 Enterprise CresMcDougalls Hill NSW 2330
Closed · opens 6:30 am
Truck repair shop in Smeaton Grange, NSW offering on-site repairs, auto electrical diagnostics and parts supply.
8 Waler CresSmeaton Grange NSW 2567
Closed · opens 6:00 am
Diesel engine specialists in Fairfield East, NSW, tuning and repairing diesel engines on-site across Sydney's south-west.
7 Malta StFairfield East NSW 2165
Closed · opens 12:00 pm
Mobile hydraulic hose and off-highway tyre service based in Culcairn, NSW, also covering breakdowns and batteries.
Culcairn NSW 2660
Closed · opens 9:00 am
Truck and heavy vehicle parts, service and repairs in Tamworth, NSW, plus an RTA inspection station.
21 Denison StTamworth NSW 2340
Closed · opens 8:30 am
Mobile diesel mechanic based in Henty, NSW, servicing Wagga Wagga, Albury and surrounds with on-site repairs, servicing and inspections.
Henty NSW 2658
Closed · opens 6:00 am
Heavy equipment repairer in Port Macquarie, NSW, doing on-site mobile plant repairs, hydraulic repairs and planned maintenance.
Port Macquarie NSW 2444
Open now · 24 hours
13546 Kamilaroi HwyBoggabri NSW 2382
Closed · opens 7:00 am
Diesel engine specialist in Mittagong, NSW for engine repairs, overhauls, diagnostics and generator servicing.
2/210 Old Hume HwyMittagong NSW 2575
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 121–144 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.
