Reliable, professional servicing for all machinery needs.

Expert Diesel Fitting & Repairs in Toowoomba and the Darling Downs

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Welcome to SMITH Diesel Fitting

We're your trusted partner for agricultural, earthmoving, and transport businesses,
proudly serving Toowoomba and the Surrounds since 2013.

We understand that downtime costs you money.

That's why we offer a comprehensive range of professional ON-SITE SERVICING & REPAIRS

or welcome your machinery into our fully equipped workshop.

Our expert services keep your operation running smoothly:

Agricultural Machinery
Earthmoving Machinery
Road Transport (trucks and trailers)
Specialised Diagnostics with John Deere Service Advisor, CNH EST, and Universal Diagnostic Scan Tools
Pre-Season Maintenance
ECM Tuning
Hydraulic Cylinder Repairs
Air Conditioning and Auto Electrical Services

Let our skilled team take care of all your diesel fitting needs with professionalism and care.

Our Services

Agricultural Machinery

Comprehensive servicing and repairs for tractors, hay machinery, harvesters, and general farm equipment.

Brand specific scan tools for fast diagnostics, John Deere Service Advisor, CASE IH EST and multi-fleet scan tool. Hydraulic cylinder reseals & repairs, clutch replacements, and scheduled servicing to major repairs.

Earthmoving Machinery

CAT Electronic Tool (ET), CAT SIS (Service Information System).

Servicing and repairs for dozers, excavators, loaders, skid steers, and backhoes. Hydraulic cylinder reseals, component rebuilds, scheduled servicing to major repairs.

Road Transport
(Trucks & Trailers)

Maintenance and repairs for trucks and trailers. Pre-roadworthy inspections, brake and wheel bearing maintenance, scheduled servicing to major repairs.

Multi fleet scan tool and EBS braking diagnostics.

ECM Tuning

Our ECM tuning service recalibrates your vehicle’s Engine Control Module to unlock better performance, fuel efficiency, and throttle response.

By fine-tuning settings like fuel delivery, ignition timing, and boost, we help your engine run at its full potential.

In-house Auto Electrician Services

Our in-house auto electrician handles everything from wiring and diagnostics to complex electrical repairs.

With expert skills on site, we’ll keep your vehicles running safely and reliably.

Air Conditioning Repairs

We diagnose and repair air conditioning faults to keep your cab cool and comfortable.

From re-gassing to full system repairs, we’ll get your A/C back to peak performance.

Hydraulic Cylinder Repairs

We repair and rebuild hydraulic cylinders to restore strength, reliability, and performance.

From resealing to full overhauls, our team ensures your equipment is back working hard with minimal downtime.

Universal Diagnostic Scan Tool

The Jaltest diagnostic scan tool takes the guesswork out of fault finding across ag machinery, off-highway, and on-highway commercial vehicles.

Backed by our skilled diesel fitters and auto electrician, it delivers fast, accurate diagnostics to save you time and money.

Pre-season Inspections and Repairs

We carry out thorough pre-season inspections to identify issues before they cause costly breakdowns.

From servicing to essential repairs, we’ll make sure your machinery is ready to perform when you need it most.

Meet the Team

Jason Smith

Director / Diesel Fitter

Mikaela Smith

Business Manager

Brooke Rich

Office Manager

Charles

2IC / Diesel Fitter

Bayley

Diesel Fitter

Mitch

Diesel Fitter

Lachlan L

Diesel Fitter

Lachlan R

Diesel Fitter

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