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

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Diesel Mechanics in Gloucester NSW

8 diesel mechanics1 based here · 7 serve the area★ 4.7 average from 27 reviews

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.

8 diesel mechanics based in or serving Gloucester; listings updated 7 Oct 2026.

  2. Based nearby, serving Gloucester

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

  3. North Coast Heavy Diesel

    Mechanics, Diesel Mechanics, Auto Electricians, 4x4, Tyres

    Based in Thrumster NSW · serves Gloucester

    5.0 (12 reviews) View profile Credentials listed Serves this area Est. 2025

    Mobile diesel mechanic in Thrumster, NSW servicing heavy vehicles, plant machinery and light vehicles, with auto electrical repairs and tyre work.

    • Heavy Vehicle Servicing
    • Heavy Vehicle Repairs
    • Auto Electrical Repairs

    Based in Thrumster NSWServes Gloucester

    Open now · 24 hours

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  4. Mid Coast Auto & Diesel Centre

    Diesel Mechanics, Mechanics, 4x4

    Based in Taree NSW · serves Gloucester

    5.0 (3 reviews) Directions View profile Credentials listed Serves this area Est. 2020

    Diesel and 4x4 mechanic in Taree, NSW for diesel fuel injection, turbo repairs, logbook servicing and roadworthy checks.

    • Diesel Fuel Injection Services
    • Logbook Servicing
    • Roadworthy & Safety Certificates

    Based in Taree NSWServes Gloucester

    Closed · opens 7:30 am

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  5. 365 Towing Taree

    Towing, Mechanics, Tyres, Panel Beaters, Diesel Mechanics

    Based in Wingham NSW · serves Gloucester

    5.0 (2 reviews) Directions View profile Credentials listed Serves this area Est. 2024

    Towing business in Wingham, NSW for car, accident and long distance towing, roadside assistance and machinery transport.

    • Car Towing
    • Roadside Assistance
    • Accident Towing

    Based in Wingham NSWServes Gloucester

    Open now · 24 hours

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  6. Autopro Taree

    Auto Electricians, Mechanics, 4x4, Tyres, Diesel Mechanics

    Based in Taree NSW · serves Gloucester

    4.2 (6 reviews) Directions View profile Serves this area Est. 1982

    Auto mechanic and parts shop in Taree, NSW, covering car servicing, brakes, batteries and engine diagnostics.

    • Logbook Servicing
    • Brake & Clutch Repairs
    • Vehicle Diagnostics

    Based in Taree NSWServes Gloucester

    Closed · opens 8:30 am

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  7. Manning Smash & Auto Repairs

    Mechanics, Auto Electricians, 4x4, Tyres, Panel Beaters, Diesel Mechanics, Towing

    Based in Wingham NSW · serves Gloucester

    4.0 (4 reviews) Directions View profile Credentials listed Serves this area Est. 1991

    Smash repairer and mechanic in Wingham, NSW for panel and smash repairs, logbook servicing and brake and clutch repairs.

    • New Car Logbook & Major Servicing
    • Brake & Clutch Repairs
    • Panel & Smash Repairs

    Based in Wingham NSWServes Gloucester

    Closed · opens 8:00 am

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  8. Platinum Truck & Plant Repairs

    Mechanics, 4x4, Diesel Mechanics, Caravan Repairs, Towing

    Based in Tamworth NSW · serves Gloucester

    View profile Serves this area Est. 2022

    Truck and heavy machinery mechanic in Tamworth, NSW for truck repairs, trailer repairs, diesel engine diagnostics and mobile breakdowns.

    • Truck Repairs
    • Trailer Repairs
    • Engine Diagnostic & Repairs

    Based in Tamworth NSWServes Gloucester

    Open now · 24 hours

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  9. Hunter High Performance

    Mechanics, 4x4, Diesel Mechanics

    Based in Brookfield NSW · serves Gloucester

    Directions View profile Serves this area Est. 2020

    Diesel tuning and performance specialist in Brookfield, NSW, for dyno tuning, ECU remapping and 4WD upgrades.

    • Diesel Performance Upgrades
    • Turbo Fitment
    • Dyno Tuning

    Based in Brookfield NSWServes Gloucester

    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 8 on this page.

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

Diesel mechanics for diesel servicing and repairs, injectors and fuel systems, DPF cleaning and truck repairs. Mechanics Directory lists 8 diesel mechanics in Gloucester 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 rating, listed credentials and 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 Gloucester?

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 Gloucester?

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 Gloucester.

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.