Keeping your fleet moving.

Based in Kurri Kurri 2327

McCarthy Diesel & Plant provides services to Heavy Vehicles, Plant and Machinery across NSW. We are a family owned and operated business that has a core focus on good client relationships.

Our services

Heavy Vehicle & Plant Repair

Plant repairs, field service, diagnostics, servicing, maintenance and component overhauls for heavy vehicles and machinery.

Welding Repairs & Fabrication

Custom fabrication, repairs, modifications and durable welding work for heavy equipment and attachments.

Line Boring

Mobile line boring and onsite machining solutions for worn bores plus heavy machinery repairs and restoration work.

Small but experienced, agile but dependable.

McCarthy repairs
Workshop repairs
McCarthy field service
Field service
McCarthy welding
Fabrication

Why choose McCarthy Diesel & Plant?

We have both workshop and field service support.
Repair, fabrication and line boring all in one business.
Family owned and operated.
Highly experienced team with a culture built on continuous improvement.
A safe, professional team committed to getting the job done right.

Our Core Services

Welding repairs, modifications and custom fabrication

From repairing complex heavy equipment components to designing and constructing custom plant equipment, our mechanics bring the experience and skill to handle it all. Every custom part and component we produce is built to exact specifications, so you can trust that it will fit perfectly, perform optimally, and stand up to the demands of the job — all delivered with the precision and quality assurance we are known for.

Repair and maintenance for heavy vehicles, machinery and plant

Our experienced team of mechanics offer a complete range of Maintenance & Repair Services across a variety of equipment ranging from small pumps through to agricultural, construction and mining equipment. These services include:

  • Plant Repairs
  • Field Service
  • Heavy Vehicle Repairs
  • Diagnostics
  • Servicing & Maintenance
  • Component Overhauls

Line Boring & Machining

With fully mobile line boring capabilities, our team can attend your site and deliver precision on-site machining across a broad range of applications. Whether it's repairing worn bores on heavy machinery, carrying out industrial equipment maintenance, or supporting custom fabrication projects, we have the equipment and expertise to get the job done where it's needed most — reducing transport costs and minimising downtime across your operations.

Authorised NSW DOZCO Dealer

DOZCO rock breaker
DOZCO undercarriage parts
DOZCO product range

Product Categories

We can provide quality DOZCO product solutions across three core categories:

Rock Breakers

Hydraulic breakers for demolition, quarrying, trenching and civil works. Range suited from compact machines to larger carriers.

Rock Breaker Tools

Moil points, blunt tools, wedges and conical chisels for multiple applications and demanding work environments.

Undercarriage Parts

Track chains, rollers, idlers, sprockets, segments, guards and more for excavators and dozers.

Why buy through McCarthy Diesel & Plant?

NSW local point of contact.
Advice on correct part selection.
Fast response and quoting.
Support from a real workshop team.
Supply backed by trusted manufacturer.
We can pair parts supply with repairs and install support.

What Industries can we serve?

Mining & Quarrying
Construction & Demolition
Civil / Roadworks
Earthmoving Contractors
Transport / Fleet Support

Our Story...



From our start as Hunter Rail & Civil, we evolved into McCarthy Diesel & Plant and have since grown into one of the Hunter's preferred providers for Heavy Vehicle & Plant Repairs and Fabrication & Maintenance. Led by Managing Director Nathan Parfoot — who brings over 15 years of industry experience — we have continued to grow and evolve since our founding in 2016.

Our strength lies in our people. Our family of Plant Mechanics, Heavy Vehicle Mechanics, Boilermakers, Plant Operators and Administrative staff each bring a unique skillset; working together to deliver consistently high quality across every job. We're small but growing, experienced but agile, and fully equipped with the skills, resources and management to handle projects of all types and sizes. We invest in creating a positive workplace because we know that a happy, motivated team is what drives great outcomes for our clients.

Safety is at the heart of everything we do. We treat our staff, contractors and members of the public like family, and we are fiercely determined to maintain a safe, professional culture across all of our work. Reducing and preventing incidents isn't just a priority — it's how we protect our people and deliver work efficiently, every time.

About McCarthy Diesel and Plant

Reach out!

Contact Details

Phone
02 9145 5175
Email
info@mccarthygroups.com
Location
47 Wermol St, Kurri Kurri NSW 2327

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