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Describe the job once and we'll match it with up to 3 diesel mechanics in Sefton.

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Diesel Mechanics in Sefton NSW

10 diesel mechanics

About these results

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.

10 diesel mechanics based in or serving Sefton; listings updated 7 Oct 2026.

  1. Based nearby, serving Sefton

    These businesses aren't based in Sefton but list it as a service area.

  2. Carbon Jet

    Diesel Mechanics

    Based in Fairfield East NSW · serves Sefton

    Directions View profile Serves this area Est. 2024

    Mobile DPF cleaning service in Fairfield East, NSW, for DPF diagnostics, cleaning and regeneration on diesel vehicles.

    • DPF Cleaning
    • Mobile DPF Cleaning
    • DPF Diagnostics

    Based in Fairfield East NSWServes Sefton

    Open now · 24 hours

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  3. Jap Truck Spares Pty Ltd

    Diesel Mechanics, Mechanics

    Based in Fairfield East NSW · serves Sefton

    Directions View profile Serves this area

    Truck parts and repair business in Fairfield East, NSW, reconditioning engines, transmissions and differentials for Japanese trucks.

    • Transmission and gearbox repairs

    Based in Fairfield East NSWServes Sefton

    Closed · opens 9:00 am

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  4. Quantum Diesel Tuner

    Diesel Mechanics, Mechanics

    Based in Fairfield East NSW · serves Sefton

    Directions View profile Serves this area

    Diesel engine specialists in Fairfield East, NSW, tuning and repairing diesel engines on-site across Sydney's south-west.

    Based in Fairfield East NSWServes Sefton

    Closed · opens 12:00 pm

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  5. Ami Diesel Mechanic

    Panel Beaters, Mechanics, Diesel Mechanics

    Based in Yennora NSW · serves Sefton

    Directions View profile Serves this area

    Diesel mechanic in Yennora, NSW for oil changes, diesel engine work and car bodywork repairs.

    • Oil change

    Based in Yennora NSWServes Sefton

    Closed · opens 8:00 am

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  6. B & M Fuel Injection Pty Ltd

    Mechanics, Diesel Mechanics

    Based in Auburn NSW · serves Sefton

    Directions View profile Serves this area

    Diesel mechanics in Auburn, NSW providing fuel injection services, diagnostics, repairs and maintenance.

    Based in Auburn NSWServes Sefton

    Closed · opens 8:30 am

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  7. BL Japanese Truck Spares

    Tyres, Diesel Mechanics

    Based in Fairfield East NSW · serves Sefton

    Directions View profile Serves this area

    Truck parts and tyre supplier in Fairfield East, NSW, for Japanese truck panels, lamps, mirrors, filters and rims.

    • Bumper bars and grilles
    • Door shells and door glasses
    • Head lamps and corner lamps

    Based in Fairfield East NSWServes Sefton

    Closed · opens 9:00 am

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  8. Boltorque Automotive

    Mechanics, Diesel Mechanics

    Based in Regents Park NSW · serves Sefton

    Directions View profile Serves this area

    Mechanic in Regents Park, NSW for brake and clutch repairs, dyno tuning and vehicle inspections.

    • Brake and clutch repairs
    • Vehicle and pre-purchase inspections
    • Dyno tuning and performance

    Based in Regents Park NSWServes Sefton

    Closed · opens 8:00 am

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  9. Burt Brothers Automotive Services

    Mechanics, Tyres, Diesel Mechanics

    Based in Fairfield East NSW · serves Sefton

    Directions View profile Serves this area

    Mechanic in Fairfield East, NSW for brake systems, wheel alignment and truck repairs, with parts supply.

    • Brake and clutch repairs
    • Truck and bus repairs
    • Wheel alignment and balancing

    Based in Fairfield East NSWServes Sefton

    Closed · opens 7:30 am

    Get a quote

  10. Speedy Auto Centre

    Mechanics, Diesel Mechanics

    Based in South Granville NSW · serves Sefton

    Directions View profile Serves this area

    Auto centre in South Granville, NSW working on diesel and petrol vehicles, car batteries and air conditioning.

    • Car batteries

    Based in South Granville NSWServes Sefton

    Closed · opens 8:00 am

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No diesel mechanics on this page match all of these filters. Untick one, or clear the filters to see all 10 on this page.

Showing 1–10 of 10 diesel mechanics · filters apply to this page only

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Tell us about the job and we'll match it with up to 3 diesel mechanics in Sefton. 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.

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Choosing diesel mechanics in Sefton

Diesel mechanics for diesel servicing and repairs, injectors and fuel systems, DPF cleaning and truck repairs. Mechanics Directory lists 10 diesel mechanics in Sefton NSW. Listings show the services each business offers, and a rating where there is one.

What to check before you book

Getting started

  1. Describe the job. Your vehicle's make, model and year, what's wrong or what it needs, and when you need it done.
  2. Shortlist two or three. Use the filters above to narrow this page by website.
  3. Compare quotes. Or send one request and we'll match it with up to 3 diesel mechanics.
  4. Agree in writing. Confirm the price, what's included and when the vehicle will be ready before work begins.

Frequently asked questions

How do I choose between diesel mechanics in Sefton?

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.

How much does a diesel service cost in Sefton?

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 Sefton.

Do diesel mechanics need to be licensed?

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.

What is DPF cleaning?

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.

What does "serves this area" mean?

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.

How do free quotes work?

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.