Australia's directory of mechanics and motoring services
Describe the job once and we'll match it with up to 3 diesel mechanics in Callaghan.
Based here first, then 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.
33 diesel mechanics based in or serving Callaghan; listings updated 7 Oct 2026.
These businesses aren't based in Callaghan but list it as a service area.
Roof rack manufacturer and vehicle accessories fit-out shop in Mayfield West, NSW, supplying roof racks, canopies, bull bars and 4WD accessories.
Based in Mayfield West NSWServes Callaghan
Closed · opens 8:00 am
Mechanics, Auto Electricians, Tyres, Diesel Mechanics
Based in Beresfield NSW · serves Callaghan
Mobile mechanic in Beresfield, NSW for logbook servicing, brake pads, batteries and tyres, coming to your vehicle.
Based in Beresfield NSWServes Callaghan
Closed · opens 8:00 am
Transport hydraulics supplier in Sandgate, NSW, for PTOs, pumps, hoists, cylinders, winches and tipper and crane hydraulic systems.
Based in Sandgate NSWServes Callaghan
Diesel engine parts and accessories supplier in Mayfield West, NSW, for marine and industrial engines, pumps and generators.
Based in Mayfield West NSWServes Callaghan
Closed · opens 8:30 am
Auto Electricians, Mechanics, 4x4, Diesel Mechanics, Caravan Repairs
Based in Beresfield NSW · serves Callaghan
Parts supplier in Beresfield, NSW for truck parts, clutch, suspension and brake components.
Based in Beresfield NSWServes Callaghan
Closed · opens 7:30 am
Spray-on polyurethane coating and waterproofing specialist in Mayfield, NSW for truck beds, trailers, roofs, tanks and concrete.
Based in Mayfield NSWServes Callaghan
Closed · opens 7:00 am
Performance parts and 4x4 upgrades in Beresfield, NSW, covering ECU remapping, exhausts and engine performance work.
Based in Beresfield NSWServes Callaghan
Closed · opens 8:00 am
Truck and fleet parts supplier in Hexham, NSW, stocking truck and trailer parts and accessories, including genuine and aftermarket components.
Based in Hexham NSWServes Callaghan
Closed · opens 8:00 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
Based in Beresfield NSW · serves Callaghan
Truck workshop in Beresfield, NSW for truck servicing, mechanical repairs, rego inspections and auto electrical work.
Based in Beresfield NSWServes Callaghan
Closed · opens 6:00 am
No diesel mechanics on this page match all of these filters. Untick one, or clear the filters to see all 9 on this page.
Showing 25–33 of 33 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 Callaghan. 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 33 diesel mechanics in Callaghan NSW. 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 Callaghan.
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.
