Australia's directory of mechanics and motoring services
Describe the job once and we'll match it with up to 3 diesel mechanics in Newcastle.
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.
83 diesel mechanics in Newcastle; listings updated 7 Oct 2026.
Auto repair shop in Edgeworth, NSW for logbook servicing, brake and clutch repairs, pink and blue slips, and windscreen replacement.
Unit 15/17 Aluminium ClEdgeworth NSW 2285
Closed · opens 9:00 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
48 Park Ave, Adamstown NSW 2289
Car mechanic in Adamstown, NSW for logbook servicing, pink slip inspections and wheel alignments.
48 Park AveAdamstown NSW 2289
Closed · opens 8:00 am
Tyres, Mechanics, Diesel Mechanics
15 Spit Island Cl, Mayfield West NSW 2304
Tyre shop in Mayfield West, NSW for car and truck tyres, wheel alignments, logbook servicing and rego inspections.
15 Spit Island ClMayfield West NSW 2304
Closed · opens 8:00 am
Mechanics, 4x4, Tyres, Diesel Mechanics
8 Metro Ct, Gateshead NSW 2290
Mechanic in Gateshead, NSW for steering and suspension repairs, brake and clutch work, and wheel alignments.
8 Metro CtGateshead NSW 2290
Closed · opens 8:00 am
Truck body and fabrication workshop in Maryville, NSW, building steel trays, custom canopies, toolboxes and tippers.
29-35 Harrison StMaryville NSW 2293
Closed · opens 7:30 am
Automotive and 4x4 shop in Cardiff, NSW for tyres, wheel alignment and balancing, suspension and shock absorbers, rims and auto parts.
Unit 1/31 Munibung RdCardiff NSW 2285
Closed · opens 8:00 am
Mechanics, Diesel Mechanics
2/10 Riverside Dr, Mayfield West NSW 2304
Mechanical and diesel repair workshop in Mayfield West, NSW, working on trucks and buses.
2/10 Riverside DrMayfield West NSW 2304
Closed · opens 8:00 am
Mechanics, 4x4, Panel Beaters, Diesel Mechanics
Unit 2/10 Yangan Dr, Beresfield NSW 2322
Custom garage in Beresfield, NSW for dyno tuning, engine performance upgrades, brake and suspension repairs, restorations and custom fabrication.
Unit 2/10 Yangan DrBeresfield NSW 2322
Closed · opens 8:00 am
Performance and mechanical workshop in Whitebridge, NSW for dyno tuning, engine rebuilds, power upgrades and transmission repairs.
6 Teran ClWhitebridge NSW 2290
Closed · opens 8:30 am
Truck and bus repairer in Hexham, NSW, also selling new and used trucks, equipment and parts.
320 Pacific HwyHexham NSW 2322
Closed · opens 7:30 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics, Caravan Repairs
4/ 5 Leo Lewis Close, Toronto NSW 2283
Heavy diesel and plant mechanics in Toronto, NSW for heavy vehicle repairs, light vehicle servicing and roadside breakdown callouts.
4/ 5 Leo Lewis CloseToronto NSW 2283
Closed · opens 7:00 am
Diesel mechanic in Bolton Point, NSW, specialising in diesel engine repairs and maintenance for diesel vehicles.
Wattle StBolton Point NSW 2283
Open now · 24 hours
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
47 Tudor St, Hamilton NSW 2303
Mitsubishi dealer in Hamilton, NSW for new and used vehicles, servicing, tyres and wheel alignments.
47 Tudor StHamilton NSW 2303
Closed · opens 8:30 am
Mechanics, Auto Electricians, Tyres, Diesel Mechanics, Caravan Repairs
56 Young Rd, Lambton NSW 2299
Mechanic in Lambton, NSW for logbook servicing, brake and clutch repairs, diagnostics and roadworthy inspections.
56 Young RdLambton NSW 2299
Closed · opens 8:00 am
Roof rack manufacturer and vehicle accessories fit-out shop in Mayfield West, NSW, supplying roof racks, canopies, bull bars and 4WD accessories.
40 Riverside DrMayfield West NSW 2304
Closed · opens 8:00 am
Mechanics, Auto Electricians, Tyres, Diesel Mechanics
6/3 Kullara Cl, Beresfield NSW 2322
Mobile mechanic in Beresfield, NSW for logbook servicing, brake pads, batteries and tyres, coming to your vehicle.
6/3 Kullara ClBeresfield NSW 2322
Closed · opens 8:00 am
Machinery repairer and diesel mechanic in Macquarie Hills, NSW for heavy plant repairs, machine rebuilds and engine repairs.
107 Lawson RdMacquarie Hills NSW 2285
Closed · opens 7:00 am
Mechanics, Tyres, Diesel Mechanics
Brushtail Pl, Belmont NSW 2280
Mobile mechanic in Belmont, NSW for oil changes, vehicle inspections and transmission work, coming to you across Lake Macquarie.
Brushtail PlBelmont NSW 2280
Closed · opens 7:00 am
Transport hydraulics supplier in Sandgate, NSW, for PTOs, pumps, hoists, cylinders, winches and tipper and crane hydraulic systems.
7 Jersey AveSandgate NSW 2304
Diesel engine parts and accessories supplier in Mayfield West, NSW, for marine and industrial engines, pumps and generators.
1/20 Spit Island ClMayfield West NSW 2304
Closed · opens 8:30 am
4x4 accessories and tyre shop in Cardiff, NSW, supplying car accessories and truck gear for local adventurers.
68 Munibung RdCardiff NSW 2285
Closed · opens 8:00 am
Auto Electricians, Mechanics, 4x4, Diesel Mechanics, Caravan Repairs
2/11 Kinta Dr, Beresfield NSW 2322
Parts supplier in Beresfield, NSW for truck parts, clutch, suspension and brake components.
2/11 Kinta DrBeresfield NSW 2322
Closed · opens 7:30 am
Mechanics, Auto Electricians, Diesel Mechanics
5 Tara Rd, Broadmeadow NSW 2292
Dyno tuning and mechanical workshop in Broadmeadow, NSW, for vehicle servicing, diagnostics, brake service and eSafety checks.
5 Tara RdBroadmeadow NSW 2292
Closed · opens 9:00 am
Mechanics, Diesel Mechanics, Caravan Repairs
Marmong St, Marmong Point NSW 2284
Diesel mechanic and caravan repairer in Marmong Point, NSW, also taking on hydraulic work and boat work.
Marmong StMarmong Point NSW 2284
Open now · 24 hours
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 49–72 of 83 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 Newcastle. 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 83 diesel mechanics in Newcastle. 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 Newcastle.
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.
