Heavy vehicle & plant repair
Diagnostics, servicing, maintenance and component overhauls for heavy vehicles and machinery, in our workshop or at your site.
Heavy vehicle & plant specialists
Built to keep you moving.
Responsive field service, workshop repairs, precision line boring and heavy fabrication across Newcastle, the Central Coast and the Upper and Lower Hunter. One experienced team, ready for the hard jobs.
Hunter + CoastService region
2016Established
MobileField support
What we do.
Welding & fabrication
Complex equipment repairs, modifications and custom-built components made to fit, perform and stand up to demanding work.
Mobile line boring
Precision onsite machining for worn bores and heavy machinery, reducing transport costs and getting equipment back into service sooner.
Field service & support
Responsive site attendance backed by skilled trades, purpose-built service vehicles and the practical experience to solve problems fast.
Experience you can see.
Why choose McCarthy Diesel & Plant?
We combine the responsiveness and accountability of a family business with the systems, equipment and experience to take on demanding work.
Workshop + field support
Bring the job to us or let us bring the capability to you. Our workshop and mobile teams work together to minimise downtime.
Multiple trades, one call
Mechanical repair, heavy fabrication and precision line boring under one roof means fewer suppliers and a cleaner path to completion.
Experienced people
Plant mechanics, heavy vehicle mechanics, boilermakers and operators working as one practical, highly skilled crew.
Safety by default
A professional culture built around protecting our people, our clients and the public while delivering work efficiently.
Authorised NSW DOZCO dealer
01
02
03
DOZCO parts, backed locally.
McCarthy Diesel & Plant supplies DOZCO products across NSW, including rock breakers, breaker tools and undercarriage parts for heavy machinery working in construction, demolition, quarrying and mining. The real advantage? We can supply the parts and fit them too. You get trusted DOZCO gear installed by experienced plant mechanics, all through one workshop.
Rock breakers
Hydraulic breakers suited to demanding site conditions and heavy-duty applications.
Breaker tools
Durable tools built for reliable performance and efficient operation.
Undercarriage parts
Parts to suit major OEM machinery, with a focus on fit, reliability and service life.
Our story
Family owned. Hunter built.
Founded in 2016 as Hunter Rail & Civil, McCarthy Diesel & Plant has grown into one of the Hunter's preferred providers for heavy vehicle and plant repairs, fabrication and maintenance.
Our strength is our people: a close, capable team committed to good relationships, continuous improvement and getting every job done right.
Ready when you are