Spray-on polyurethane coating and waterproofing specialist in Mayfield, NSW for truck beds, trailers, roofs, tanks and concrete.
- Roofing
- Box gutters
- Decking
Unit 11/17 Riverside DrMayfield NSW 2304
Closed · opens 7:00 am
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.
Spray-on polyurethane coating and waterproofing specialist in Mayfield, NSW for truck beds, trailers, roofs, tanks and concrete.
Unit 11/17 Riverside DrMayfield NSW 2304
Closed · opens 7:00 am
Mechanics, 4x4, Tyres, Diesel Mechanics
Unit 6/5 Nells Rd, West Gosford NSW 2250
Chassis tuning and suspension workshop in West Gosford, NSW, for wheel alignments, shock absorber work and brake repairs.
Unit 6/5 Nells RdWest Gosford NSW 2250
Temporarily closed
Mechanic in Bathurst, NSW for oil changes, diesel engine work and wheel alignments, serving Bathurst East, South, West and surrounds.
1 Vale RdBathurst NSW 2795
Closed · opens 8:00 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
35 Lake Albert Rd, Wagga Wagga NSW 2650
Mechanic in Wagga Wagga, NSW for logbook servicing, wheel alignments, brake servicing and pink slip inspections.
35 Lake Albert RdWagga Wagga NSW 2650
Closed · opens 8:00 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
459 Crown St, Wollongong NSW 2500
Car mechanic in Wollongong, NSW for logbook servicing, brake repairs, pre-purchase inspections and tyres.
459 Crown StWollongong NSW 2500
Closed · opens 8:00 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
95 Chapel St, Roselands NSW 2196
Car servicing and repairs in Roselands, NSW, covering oil changes, engine rebuilding and air conditioning work.
95 Chapel StRoselands NSW 2196
Closed · opens 7:00 am
Truck and commercial vehicle repairer and tow operator in East Wagga Wagga, NSW, covering accident repairs, towing and sandblasting.
340 Copland StEast Wagga Wagga NSW 2650
Closed · opens 8:00 am
Engine reconditioner and diesel repair specialist in Griffith, NSW, rebuilding engines for vehicles, diesel machinery and small equipment.
29b Collier StGriffith NSW 2680
Closed · opens 9:00 am
Mobile diesel mechanic in Wyee, NSW, doing truck repairs, mobile repairs and roadside breakdown service across the Central Coast and Lake Macquarie.
Wyee NSW 2259
Open now · 24 hours
Fabrication and welding workshop in South Windsor, NSW, doing vehicle and truck modifications, semi trailer repairs and diesel mechanic work.
Unit 2/6 Dowling PlSouth Windsor NSW 2756
Closed · opens 7:00 am
Mechanics, 4x4, Tyres, Diesel Mechanics
Unit 2/62 Sunnyholt Rd, Blacktown NSW 2148
Mechanic and tyre shop in Blacktown, NSW for brake and clutch repairs, radiators, suspension and vehicle inspections.
Unit 2/62 Sunnyholt RdBlacktown NSW 2148
Closed · opens 7:00 am
Mobile mechanic in Heathcote, NSW for logbook servicing, brake and clutch repairs and pre-purchase inspections.
Heathcote NSW 2233
Closed · opens 7:30 am
20-26 Dunn RdSmeaton Grange NSW 2567
Closed · opens 7:00 am
Mechanics, 4x4, Diesel Mechanics
19 Phelhampton Cres, Jennings NSW 2372
Mobile mechanic based in Jennings, NSW, servicing cars and motorcycles around Tenterfield and Stanthorpe.
19 Phelhampton CresJennings NSW 2372
Closed · opens 8:00 am
Van and caravan builder in Mullumbimby, NSW, creating custom van fitouts and personalised homes on wheels.
Unit 2/26 Towers DrMullumbimby NSW 2482
Closed · opens 9:00 am
Mechanics, Auto Electricians, 4x4, Diesel Mechanics
45 Minjungbal Dr, Tweed Heads South NSW 2486
Mechanic in Tweed Heads South, NSW for logbook servicing, brake repairs, suspension work and vehicle diagnostics.
45 Minjungbal DrTweed Heads South NSW 2486
Closed · opens 8:00 am
Engine builder in Croom, NSW for engine building, dyno testing and tuning, and performance modifications.
Croom NSW 2527
Open now · 24 hours
Tyres, Mechanics, 4x4, Diesel Mechanics, Caravan Repairs
2/6 Catamaran Rd, Fountaindale NSW 2258
Truck repair workshop in Fountaindale, NSW for truck servicing, maintenance, brake and clutch rebuilding and laser wheel alignments.
2/6 Catamaran RdFountaindale NSW 2258
Closed · opens 9:00 am
Mechanic in Kirrawee, NSW for logbook servicing, brake repairs, engine reconditioning and diesel work.
Unit 2/119 Bath RdKirrawee NSW 2232
Closed · opens 8:00 am
Castrol oil and filtration supplier in Bomaderry, NSW, serving the Shoalhaven with industrial oils, filters and spill safety products.
1 Gesham WayBomaderry NSW 2541
Closed · opens 8:00 am
Auto Electricians, Mechanics, 4x4, Tyres, Diesel Mechanics
71- 75 Sydenham Rd, Marrickville NSW 2204
Auto electrician and mechanic in Marrickville, NSW for auto electrical repairs, logbook servicing, brakes and wheel alignments.
71- 75 Sydenham RdMarrickville NSW 2204
Closed · opens 8:00 am
Mechanics, Auto Electricians, 4x4, Diesel Mechanics
45 Pringle Rd, Fernhill NSW 2519
Truck repair workshop in Fernhill, NSW for truck maintenance, diagnostics, electrical work and roadside assistance.
45 Pringle RdFernhill NSW 2519
Closed · opens 8:00 am
Caravan Repairs, Diesel Mechanics
232 Church St, Glen Innes NSW 2370
Trailer and canopy supplier in Glen Innes, NSW, building tipping, box, car, cattle and caged trailers, ute canopies, toolboxes and trays.
232 Church StGlen Innes NSW 2370
Closed · opens 8:30 am
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.