Maitland’s Heavy Vehicle Auto Electrical Experts

Mobile diagnostics, repairs, and emergency service when you need it most

Whether you’re running a single truck or managing a full fleet, we bring workshop-level expertise straight to your site — saving you time, towing costs, and downtime.

✔ Fully qualified auto electricians
✔ Diesel engine diagnostics & electrical repairs
✔ 24/7 mobile breakdown response across Maitland & Hunter region

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Providing the Central Coast with mobile Auto Electrical Services

At East Coast Diesel & Performance, we specialise in keeping trucks, machinery, and diesel vehicles performing at their best.
Founded by qualified auto electrician Dillon James, our Maitland-based team offers on-site repairs, diagnostics, and emergency callouts for heavy vehicles across Central Coast NSW.

With over 15 years of hands-on industry experience, Dillon and his team understand the critical role uptime plays for transport, civil, and agricultural operators. From ECU faults to failed alternators, no-start diesel engines, or air-conditioning breakdowns, we diagnose and fix issues quickly — right where your vehicle stands.

Our mission is simple: minimise downtime, maximise reliability, and deliver honest, professional service backed by real results.

We work with:

  • Local transport and freight companies

  • Civil and earthmoving operators

  • Agricultural and farming fleets

  • Owner-drivers and independent tradies

Every job is completed with transparency, attention to detail, and the same care we’d expect for our own vehicles.

An Overview of Services We Offer

At East Coast Diesel & Electrical, we specialise in keeping heavy vehicles and machinery working at full capacity. We offer full-service mobile diagnostics, repairs, installations, and emergency callouts for:

Take a Closer Look at Our Services

White East Coast Diesel & Electrical service truck with a mounted red crane parked on a suburban street under clear blue skies.

From complete rewires to lighting faults and ECU programming, we cover all aspects of heavy-vehicle auto electrical work.
We repair and install:

  • Wiring looms, relays, and switches

  • Engine management and sensor systems

  • Work lights, beacons, and trailer wiring

  • Dual battery setups and accessories

All repairs are carried out with durable, weather-rated components designed for heavy-duty conditions.

We diagnose and repair electrical and refrigerant faults in heavy-vehicle A/C systems.

Our services include:

  • Regassing and leak detection

  • Sensor and actuator testing

  • Cabin control module and blower repairs

  • Full HVAC electrical diagnostics

From long-haul trucks to excavators and tractors, we keep your cab cool and your crew comfortable year-round.

East Coast Diesel service truck parked on grass under tall gum trees during golden hour.
East Coast Diesel service truck assisting a semi-trailer on-site, parked on a dirt lot under tall trees in afternoon sunlight.

Breakdown on site or roadside? We’re equipped for rapid response anywhere in Maitland, Cessnock, or the Hunter region.
Our mobile team can:

  • Diagnose electrical and diesel faults

  • Replace failed batteries and starter motors

  • Repair wiring or lighting failures on the spot

  • Get trucks, tractors, and utes running again quickly

When downtime costs you money, our fast, professional callouts keep your business moving.

If your truck or plant won’t start, our team provides complete on-site testing and repairs.
We service:

  • Alternators and starter motors

  • Battery testing, replacements, and isolators

  • Heavy-duty charging system evaluations

We carry replacement parts on-board to get you back to work faster.

Our advanced scan tools and dealer-level software allow us to pinpoint complex electrical and fuel-system faults fast.
We handle:

  • Injector and glow-plug wiring faults

  • Diesel intake and fuel-rail sensors

  • ECU, ABS, and transmission module diagnostics

  • On-site diesel fault scanning and system resets

This precision approach means fewer guesswork repairs and faster turnaround.

Why Choose East Coast Diesel & Electrical?

We’re not your average auto electricians — we’re heavy-vehicle specialists who understand the pressure of keeping machinery operational.

Here’s why local operators choose East Coast Diesel & Auto Electrical:

  • Heavy-Vehicle Expertise: We service trucks, excavators, loaders, tractors, and diesel utes over 3 tonnes.

  • Fully Mobile Service: We come to you anywhere in Maitland and surrounding suburbs.

  • Advanced Diagnostics: Our scan tools rival dealer systems for accuracy.

  • Owner-Operated: Deal directly with Dillon — no subcontractors, no middlemen.

  • Honest Advice: Clear communication, upfront estimates, and transparent pricing.

  • Fast Response: We prioritise downtime-critical jobs to get you running sooner.

Our reputation is built on reliability, professionalism, and results that last.

How We Work

Call or Enquire Online

Tell us what’s happening with your vehicle.

Receive a Callback & Estimate

We’ll confirm details and provide a quote.

We Travel to You

Our van arrives equipped with diagnostic tools and parts.

On-Site Repairs

Most issues are resolved in one visit.

Follow-Up Support

We stand by our workmanship and provide maintenance advice to prevent future faults.

Every step of our process is designed for reliability and transparency. When you call, you’ll speak directly with a qualified tradesman — not a call centre.

We’ll assess your issue, provide a clear estimate, and arrive on-site with the tools and parts needed to get the job done right the first time.

Whether it’s a breakdown, an ongoing fault, or preventative servicing, you can count on us for professional workmanship and honest communication from start to finish.

Benefits of Using East Coast Diesel

We understand the cost of vehicle downtime — that’s why every aspect of our mobile service is built around speed, precision, and accountability.

East Coast Diesel & Auto Electrical is fully licensed and insured, offering fleet servicing options, after-hours callouts, and mobile coverage across Maitland and the wider Central Coast region.

Our goal is simple: minimise disruption, maximise uptime, and keep your operations running efficiently.

Our Story

Founded by local tradesman Dillon James, East Coast Diesel & Auto Electrical was built on one core value — doing the job right, no shortcuts. With over 15 years of hands-on experience in diesel mechanics and auto electrical work, Dillon has worked across transport, civil construction, and agricultural industries throughout the Hunter region.

After years sub-contracting for major fleets, he saw the need for an honest, mobile service that puts reliability ahead of profit. East Coast Diesel was born from that principle — a business that shows up, fixes what others can’t, and gives straight answers without jargon. Every repair is handled by a qualified heavy-vehicle electrician with a genuine commitment to keeping your trucks, utes, and machinery safe, compliant, and dependable.

A man in a high-visibility orange shirt stands beside an East Coast Diesel service truck parked on a grassy field under tall eucalyptus trees during golden hour.

Industries We Work With

We support a wide range of industries that rely on reliable diesel and electrical systems to operate efficiently.

Whether you’re running delivery trucks between Newcastle and the Central Coast or operating earthmoving equipment on-site, our technicians understand the demands of commercial fleets and off-road machinery.

We work closely with business owners, site managers, and contractors to deliver flexible, on-site solutions that meet operational schedules and compliance requirements.

Areas We Service

At East Coast Diesel & Electrical, we provide reliable, on-the-go auto electrical and mechanical services across Maitland and the wider Central Coast region. As a fully mobile mechanic, we come to you—whether you’re stuck roadside, on-site with heavy machinery, or managing a fleet from your depot.

We proudly service a wide range of suburbs, including Rutherford, East Maitland, Thornton, Gillieston Heights, Metford, Ashtonfield, Chisholm, Woodberry, Tenambit, Bolwarra Heights, Telarah, and Raworth.

Our mobile team is also active in Largs, Maitland, Lorn, Bolwarra, Lochinvar, Windella, Louth Park, and Farley, offering diagnostics, repairs, and installations right where you need them.

For clients in South Maitland, Horseshoe Bend, Millers Forest, Luskintyre, Berry Park, Oakhampton, and Oakhampton Heights, we deliver the same high-quality service—without the hassle of towing or workshop delays.

We also cover Melville, Windermere, Anambah, Allandale, Mindaribba, Oswald, Phoenix Park, Rosebrook, Duckenfield, Gosforth, Pitnacree, and Mount Dee. Need support in Cessnock, Kurri Kurri, or Abermain? We’ve got you covered there too.

Our Core Regions

Maitland Region:
We’re proud to be based right here in Maitland, providing same-day service across suburbs like Rutherford, East Maitland, and Thornton. Our fast local response times make us the go-to mobile diesel mechanic for transport operators and tradies who can’t afford long workshop delays.

Hunter Valley:
From vineyards and civil works to mining support and agricultural properties, we offer heavy vehicle repairs and diagnostics across the wider Hunter region — including Cessnock, Abermain, and Kurri Kurri. Our team understands the conditions of regional worksites and tailors our service for off-road and heavy-duty environments.

Central Coast:
Our mobile setup also services the Central Coast and surrounding areas, bringing diesel diagnostics, air conditioning, and electrical fault repairs directly to your site. Whether you’re managing a fleet near Gosford or operating plant equipment in Morisset, we deliver the same quality, reliability, and attention to detail wherever you are.

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Frequently Asked Questions

Do you handle fleet servicing?

Yes. We provide ongoing maintenance and fault diagnostics for multiple fleets, including transport and earthmoving operators.

Trucks, buses, tractors, excavators, loaders, utes over 3 tonnes, and other diesel-powered machinery.

Absolutely. We’ll give you an initial estimate based on your description and confirm on site before work begins.

Yes — we offer 24-hour emergency breakdown support for critical machinery and heavy-vehicle operators.

Yes. All parts and workmanship come with a standard warranty for your peace of mind. We only use reliable components suited to Australian conditions.

Our primary expertise is in diesel engines and heavy vehicles, but we also handle electrical and A/C repairs for light commercial vehicles and utes.

Our lead auto electrician holds a Certificate III in Heavy Commercial Vehicle Mechanical Technology, Certificate III in Automotive Electrical Technology, and ARCtick air-conditioning accreditation — ensuring every repair meets professional standards.

Ready to Get Back on the Road?

Need a reliable mobile diesel mechanic in Maitland or the Central Coast?
Call Dillon and the team at East Coast Diesel & Auto Electrical today on 0403 400517, or send an enquiry through our Contact Us page.

We’ll respond quickly, schedule a time that suits you, and arrive fully equipped to get your vehicle or equipment back in action.

Whether it’s electrical, air conditioning, or full diesel diagnostics — you can trust East Coast Diesel to get the job done right, first time.