Australia's directory of mechanics and motoring services
Describe the job once and we'll match it with up to 3 diesel mechanics in Guildford.
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.
16 diesel mechanics based in or serving Guildford; listings updated 7 Oct 2026.
Diesel engine reconditioning specialist in Guildford, NSW, rebuilding engines and modifying injection pumps and injectors.
5 Yennora AveGuildford NSW 2161
Closed · opens tomorrow 8:00 am
Mechanics, Auto Electricians, 4x4, Tyres, Panel Beaters, Diesel Mechanics, Caravan Repairs
177 Military Rd, Guildford NSW 2161
Auto repair and smash repair workshop in Guildford, NSW, handling logbook servicing, brake repairs, transmissions and inspections.
177 Military RdGuildford NSW 2161
Closed · opens tomorrow 9:00 am
These businesses aren't based in Guildford but list it as a service area.
Mobile DPF cleaning service in Fairfield East, NSW, for DPF diagnostics, cleaning and regeneration on diesel vehicles.
Based in Fairfield East NSWServes Guildford
Open now · 24 hours
Diesel fuel injection specialist in Granville, NSW, handling injector testing and remanufacturing, diesel pump repairs and parts sales.
Based in Granville NSWServes Guildford
Closed · opens tomorrow 7:30 am
Truck parts and repair business in Fairfield East, NSW, reconditioning engines, transmissions and differentials for Japanese trucks.
Based in Fairfield East NSWServes Guildford
Closed · opens tomorrow 9:00 am
Diesel engine specialists in Fairfield East, NSW, tuning and repairing diesel engines on-site across Sydney's south-west.
Based in Fairfield East NSWServes Guildford
Closed · opens tomorrow 12:00 pm
Panel Beaters, Mechanics, Diesel Mechanics
Based in Yennora NSW · serves Guildford
Diesel mechanic in Yennora, NSW for oil changes, diesel engine work and car bodywork repairs.
Based in Yennora NSWServes Guildford
Closed · opens tomorrow 8:00 am
Diesel mechanics in Auburn, NSW providing fuel injection services, diagnostics, repairs and maintenance.
Based in Auburn NSWServes Guildford
Closed · opens tomorrow 8:30 am
Truck parts and tyre supplier in Fairfield East, NSW, for Japanese truck panels, lamps, mirrors, filters and rims.
Based in Fairfield East NSWServes Guildford
Closed · opens tomorrow 9:00 am
Mechanics, Tyres, Diesel Mechanics
Based in Fairfield East NSW · serves Guildford
Mechanic in Fairfield East, NSW for brake systems, wheel alignment and truck repairs, with parts supply.
Based in Fairfield East NSWServes Guildford
Closed · opens tomorrow 7:30 am
Mechanics, 4x4, Diesel Mechanics
Based in Smithfield NSW · serves Guildford
Performance and tuning workshop in Smithfield, NSW, doing dyno tuning, engine building and race car preparation.
Based in Smithfield NSWServes Guildford
Closed · opens tomorrow 8:00 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
Based in Granville NSW · serves Guildford
Suspension and brake specialist in Granville, NSW, for brake repairs, suspension work, wheel alignments and towbar fitting.
Based in Granville NSWServes Guildford
Closed · opens tomorrow 7:30 am
Auto centre in South Granville, NSW working on diesel and petrol vehicles, car batteries and air conditioning.
Based in South Granville NSWServes Guildford
Closed · opens tomorrow 8:00 am
Caravan Repairs, Diesel Mechanics
Based in Smithfield NSW · serves Guildford
Trailer parts and accessories supplier in Smithfield, NSW, also covering caravan and trailer suspension and jockey wheels.
Based in Smithfield NSWServes Guildford
Closed · opens tomorrow 8:30 am
Diesel workshop in Smithfield, NSW for diesel pump and injector calibration, plus oil changes and automotive servicing.
Based in Smithfield NSWServes Guildford
Closed · opens tomorrow 7:30 am
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Showing 1–16 of 16 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 Guildford. 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 16 diesel mechanics in Guildford 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 Guildford.
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.
