01
Trucks & trailers
Heavy vehicle servicing, steer axle relining, brake diagnostics, suspension airbag replacements, and roadworthy prep to keep your fleet rolling.
Enquire about heavy vehicles
ON SITE. ON THE TOOLS.
ADELAIDE & REGIONAL SA
ADELAIDE’S 24/7 MOBILE DIESEL MECHANIC
DIESEL REPAIRS.
WHERE YOU ARE.
Mobile diesel servicing and roadside repairs for trucks, heavy equipment, cars and 4WDs across Adelaide and regional South Australia.
20+ YEARS ON THE TOOLS
24/7 BREAKDOWN CALLOUTS
MOBILE FULL WORKSHOP DISPATCH
LOCAL DIRECT WITH YOUR MECHANIC
// MOBILE SERVICE, MADE SIMPLE
Whether you need urgent roadside help or scheduled fleet maintenance, start with a direct call to the mechanic.
Talk to DunstallCall with your location, vehicle or machinery make and model, and symptom details. We’ll discuss the job and give you a realistic ETA.
No call centre dispatchers. Discuss the job directly with the experienced diesel mechanic who will carry out the work.
The mobile service truck brings air, 240V power, welding equipment and diagnostic tools to your site or roadside location.
// WHAT WE WORK ON
Routine servicing, preventive maintenance, or an emergency mechanical failure. Reliable diesel support wherever the job takes you.
02
Earthmoving & plant
Excavator track replacements, bucket swivel pin & bushing rebuilds, mobile crane hydraulics, and agricultural machinery fault finding on site.
Enquire about earthmoving
03
Cars, 4WDs & fleets
Manufacturer-compliant logbook servicing, fuel system upgrades, water pump replacements, and trade van fleet maintenance with zero shop downtime.
Enquire about your vehicle
One mechanic. A direct line. Genuine trade knowledge.
24/7 EMERGENCY BREAKDOWN ASSISTANCE
STOPPED? LET’S GET YOU GOING.
Blown airbag, fuel derate, brake failure, or hydraulic leak? We provide rapid on-site roadside breakdown service across Adelaide and South Australian transport corridors.
20+
YEARS ON
THE TOOLS.
DUNSTALL DIESEL SERVICES / SOUTH AUSTRALIA
THE TOOLS.
// OWNER-OPERATED • ADELAIDE & SA
YOUR MECHANIC.
You deal directly with the tradesman turning the wrenches on your gear.
Owner-operated and backed by more than 20 years of hands-on diesel mechanical trade experience, Dunstall Diesel Services keeps prime movers, trailers, civil machinery, and fleet utilities working efficiently across Greater Adelaide and regional South Australia.
01
We bring the full workshop to you.
Our purpose-built mobile unit carries heavy lifting jacks, on-board air supply, 240V generator, welding gear, and diagnostic scan tooling directly to your pad, paddock, or road shoulder.
02
Experience where it counts.
Deep diagnostic knowledge across Japanese, American, and European commercial platforms (UD, Fuso, Isuzu, Freightliner, Kenworth, CAT, Kubota, Case IH) means issues get diagnosed right the first time.
03
Direct accountability.
No intermediaries, no service advisors, no surprise charges. You speak directly with the mechanic who diagnoses, quotes, and completes the work.
// LIFE ON THE TOOLS • AUTHENTIC CASE STUDIES
REAL WORK.
EVERY DAY.
A selection of mobile servicing, repairs and field work across Adelaide and South Australia.
Roadside Callout
South Road Corridor
Heavy Truck Emergency Callout
Rapid response on-site air line restoration and diagnostic scan on commercial Freightliner tipper.
Inspect Case Study
24/7 Breakdown
Northern Expressway
Roadside Airbag Blowout Recovery
Highway shoulder replacement of ruptured trailer air suspension spring, preventing load and axle damage.
Inspect Case Study
Earthmoving Rebuild
Adelaide Hills Quarry
CAT 303E Pin & Bushing Overhaul
Complete removal of worn bucket swivel pins and hydraulic pressing of new hardened bushings.
Inspect Case Study
Civil Plant
Civil Subdivision Site
Kubota KX080-3 Track Replacement
On-site recovery and installation of heavy-duty rubber track on stranded 8-tonne excavator.
Inspect Case Study
Agricultural Plant
Mid North Grain Belt
Harvester Electrical & Hydraulic Scan
In-field harvest breakdown diagnostics, sensor harness repair, and hydraulic valve calibration.
Inspect Case Study
Heavy Plant
Industrial Yard, Wingfield
Mobile Crane Hydraulic & Engine Service
Full mechanical and hydraulic preventative servicing on all-terrain mobile crane fleet.
Inspect Case Study
Brakes & Steering
Fleet Depot, Pooraka
Steer Axle & Heavy Brake Relining
Commercial steer axle teardown, caliper servicing, and heavy-duty disc brake pad replacement.
Inspect Case Study
Custom Fabrication
Fabrication Bay
High-Capacity Dual Fuel Tank Setup
Custom secondary aluminium diesel tank installation, chassis brackets, and auxiliary transfer pump.
Inspect Case Study
Fleet Servicing
SA Truck Licences Depot
Driver Training Fleet Maintenance
Scheduled transmission servicing, clutch adjustments, and safety compliance for training trucks.
Inspect Case Study
Material Handling
Logistics Hub, Regency Park
Warehouse Forklift Fleet Servicing
On-site mast chain adjustment, hydraulic filtration service, and SafeWork compliance testing.
Inspect Case Study
Engine Mechanical
Commercial Depot, Gepps Cross
Engine Water Pump & Coolant Flush
Teardown of failed commercial engine water pump, cooling flush, and new pump installation.
Inspect Case Study
Specialised Plant
Hope Valley Cricket Club
Sports Turf Roller Overhaul
Drive chain overhaul, hydrostatic seal replacement, and journal bearing rebuild on heavy turf roller.
Inspect Case Study
Mobile Workshop
Newtons Landscape Depot
On-Site Commercial Tipper Servicing
Dunstall fully-equipped service body attending commercial tipper fleet during depot turnaround.
Inspect Case Study
Fleet & Tradie
Client Office, North Adelaide
Commercial Tradie Van Maintenance
On-site logbook maintenance, brake inspection, and electronic service reset for business van fleet.
Inspect Case Study
Heavy Powertrain
Hardstand, Adelaide North
UD Quon In-Chassis Major Service
Full filter suite replacement, valve clearance inspection, and boost leak test on UD prime mover.
Inspect Case Study
Fuel Systems
Mobile Fabrication Bay
Fuel Filtration & Plumbing Fabrication
High-efficiency water trap and pre-filter installation to safeguard common-rail diesel injectors.
Inspect Case Study
THE VEHICLES. THE MACHINERY. THE WORK.
EXPERIENCED FIELD SERVICE ACROSS ADELAIDE & SOUTH AUSTRALIA
A FEW THINGS TO KNOW
STRAIGHT
ANSWERS.
Do you come directly to my job site or breakdown location?
Yes. Dunstall operates a fully self-contained mobile workshop carrying its own air supply, generator, welding plant, and computer diagnostics. We service vehicles and equipment on building sites, farm paddocks, transport yards, or roadside shoulders anywhere in Greater Adelaide and regional SA.
Can I call for emergency roadside assistance outside business hours?
Yes. For urgent breakdowns, call 0487 253 242 at any time day or night. Standard scheduled maintenance hours are Monday to Friday, 7am–5pm, with Saturdays by prior appointment.
What types of machinery and heavy transport do you service?
We work across prime movers, trailers, tippers, excavators, skid steers, mobile cranes, forklifts, combine harvesters, tradie vans, and 4WDs. Share your make, model, and symptoms when you call.
How do I book a scheduled service or request a quote?
Call directly on 0487 253 242 or submit the enquiry form below. Provide your equipment details and location, and we will get back to you promptly to confirm availability.
// LET’S GET YOU SORTED
BOOK A
SERVICE
Tell us what you’re working with.
We’ll get in touch to discuss the job.
SERVICE HOURS
- Monday–Friday
- 7:00am–5:00pm
- Saturday
- By appointment
- Sunday
- Emergency breakdown only