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

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Diesel Mechanics in Mount Vernon NSW

15 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.

15 diesel mechanics based in or serving Mount Vernon; listings updated 7 Oct 2026.

  1. Based nearby, serving Mount Vernon

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

  4. Torque N Diesel

    Mechanics, Diesel Mechanics, Caravan Repairs

    Based in Arndell Park NSW · serves Mount Vernon

    Directions View profile Serves this area

    Diesel truck repair specialists in Arndell Park, NSW, doing on-site servicing, engine diagnostics and trailer work.

    • Truck and bus repairs
    • Trailer servicing and repairs

    Based in Arndell Park NSWServes Mount Vernon

    Closed · opens 7:00 am

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  5. Truck Mechanic

    Mechanics, Diesel Mechanics, 4x4, Tyres, Caravan Repairs

    Based in Rossmore NSW · serves Mount Vernon

    View profile Serves this area Est. 2013

    Truck mechanic in Rossmore, NSW for heavy truck servicing and repairs, diesel engine work, diagnostics and mobile breakdown help.

    • Truck Services
    • Diesel Engine Services
    • On-The-Spot Diagnostics

    Based in Rossmore NSWServes Mount Vernon

    Open now · 24 hours

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  6. City Hino

    Mechanics, Diesel Mechanics

    Based in Arndell Park NSW · serves Mount Vernon

    Directions View profile Serves this area

    Truck dealer in Arndell Park, NSW, selling new and used trucks with servicing, parts and accessories.

    • Trucks
    • Parts & Accessories

    Based in Arndell Park NSWServes Mount Vernon

    Closed · opens 8:00 am

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  7. Cornell Diesel Systems (NSW)

    Mechanics, Diesel Mechanics

    Based in Wetherill Park NSW · serves Mount Vernon

    Directions View profile Serves this area

    Diesel engine repairer and automotive parts supplier in Wetherill Park, NSW, serving trade and private customers.

    Based in Wetherill Park NSWServes Mount Vernon

    Get a quote

  8. E Auto Group

    Mechanics, Diesel Mechanics, Caravan Repairs

    Based in Wetherill Park NSW · serves Mount Vernon

    Directions View profile Serves this area

    Truck, trailer and construction equipment manufacturer in Wetherill Park, NSW, also offering on-site repair services.

    • On-site services
    • Caravan, RV and trailer sales and hire

    Based in Wetherill Park NSWServes Mount Vernon

    Closed · opens 8:00 am

    Get a quote

  9. Gilbert & Roach Trucks Huntingwood

    Mechanics, Diesel Mechanics

    Based in Huntingwood NSW · serves Mount Vernon

    Directions View profile Serves this area

    Truck dealership in Huntingwood, NSW, selling new Isuzu, Kenworth and DAF trucks and used trucks, with truck equipment, parts and repairs.

    • Truck and bus repairs

    Based in Huntingwood NSWServes Mount Vernon

    Closed · opens 7:30 am

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  11. IVECO Sydney

    Mechanics, Diesel Mechanics

    Based in Arndell Park NSW · serves Mount Vernon

    Directions View profile Serves this area

    IVECO truck dealership in Arndell Park, NSW, for new and used truck sales, finance, servicing and genuine parts.

    • Genuine IVECO replacement parts

    Based in Arndell Park NSWServes Mount Vernon

    Closed · opens 8:00 am

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  12. Loadmass - Complete On-Board Weighing Solutions

    Diesel Mechanics

    Based in Arndell Park NSW · serves Mount Vernon

    Directions View profile Serves this area

    Loadmass in Arndell Park, NSW supplies and installs on-board weighing systems for rigid trucks and multi-combination vehicles.

    • Loadmass - OBM Solution Experts
    • Rigid Vehicles
    • Multi-Combination

    Based in Arndell Park NSWServes Mount Vernon

    Closed · opens 7:30 am

    Get a quote

  13. Pacific Bodyworks

    Diesel Mechanics

    Based in Wetherill Park NSW · serves Mount Vernon

    Directions View profile Serves this area

    Aluminium service body builder in Wetherill Park, NSW, making custom ute and small truck bodies, tray bodies and canopies for trades.

    • CUSTOMISE YOUR SERVICE BODY
    • Custom aluminium service bodies
    • Truck bodies

    Based in Wetherill Park NSWServes Mount Vernon

    Closed · opens 7:00 am

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  14. Qwikfit-Tyres and Mechanics

    Mechanics, Tyres, Diesel Mechanics, Caravan Repairs

    Based in Horsley Park NSW · serves Mount Vernon

    Directions View profile Serves this area

    Automotive workshop in Horsley Park, NSW for oil changes, tyre fitting, batteries and truck repairs.

    • Oil change
    • Car batteries
    • Truck and bus repairs

    Based in Horsley Park NSWServes Mount Vernon

    Closed · opens 7:00 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 15 on this page.

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

Diesel mechanics for diesel servicing and repairs, injectors and fuel systems, DPF cleaning and truck repairs. Mechanics Directory lists 15 diesel mechanics in Mount Vernon 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 Mount Vernon?

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 Mount Vernon?

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 Mount Vernon.

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.