Location: Mt Thorley, NSW, AU, 2330

About The Opportunity

WesTrac's Mt Thorley Rebuilds Workshop is seeking experienced Heavy Diesel Mechanics and Mobile Plant Mechanics to join our highly skilled team delivering complete Caterpillar machine rebuilds. This is a unique opportunity to work in a modern workshop environment where you'll be involved in the full rebuild lifecycle of some of the mining industry's largest and most advanced equipment.

Whether you're already working in mining or looking to transition your heavy diesel skills into the resources sector, this is your chance to develop your career with an industry leader.

- From $60.55/hr+ (incl. allowances) + OT from $90.83/hr
- 12.5hr day & night shifts | 5 weeks annual leave – work only half the year on a Lifestyle roster!
- Workshop-based CAT rebuilds | modern facility | stable, experienced team

What You’ll Do

- Perform major rebuilds and overhauls on Caterpillar mining and construction equipment
- Diagnose and repair mechanical, hydraulic and powertrain systems
- Remove, inspect, repair and refit major machine components
- Conduct fault finding and troubleshooting throughout the rebuild process
- Complete quality inspections and testing to OEM standards
- Maintain a safe, clean and organised workshop setting
- Collaborate with supervisors and fellow tradespeople to achieve production targets and delivery schedules

What You’ll Bring

Australian recognised Trade Qualification in:

- Heavy Diesel Fitting
- Mobile Plant Technology
- Plant Mechanics
- Heavy Vehicle Mechanics
- Or equivalent mechanical trade

- Strong diagnostic and fault-finding skills
- Experience working on heavy mobile equipment, mining equipment, earthmoving machinery or heavy vehicles




- Commitment to safety, quality and teamwork
- Current unrestricted Australian Driver's Licence

Highly Regarded

- CAT equipment experience
- Previous rebuild or overhaul experience
- Mining industry exposure
- Hydraulic and powertrain troubleshooting capability

Why Join WesTrac?

- 12 weeks paid parental leave + income protection
- Strong job security with long‑term career pathways
- Flexitime, RDOs & purchased leave (up to 5 weeks p.a.)
- Training & career progression via the WesTrac Institute
- Fitness Passport (family included) + health & wellbeing support
- 600+ retail, travel & lifestyle discounts + CAT tool discounts
- Refer a mate & earn up to $3,000
- Free parking, onsite café & extra perks at select sites
- Relocation assistance for eligible candidates

We invest heavily in your development, offering access to our in‑house RTO(50737), dedicated learning pathways, and hands‑on experience with the latest Cat® technology and future‑focused capabilities. As one of the world’s largest authorised Cat® dealers, you’ll be part of an industry leader shaping what’s next in mining and construction.

Successful applicants will be required to complete a satisfactory National Criminal History Check and a Pre-Employment Medical as part of the Recruitment Process.

At WesTrac, our primary focus is our people. As we look to the future, we’re focused on harnessing the best talent and providing them with the support they need to achieve success. WesTrac is a member of the Diversity Council of Australia and recognise the value of and strongly support the principles of equal employment opportunities in the workplace and are committed to continue to build our workplace culture.

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