Heavy Diesel Mechanic

Willys Workshop is a specialist heavy diesel mechanic serving Brisbane from our Oxley workshop and the Sunshine Coast from Warana. We diagnose, service, repair and rebuild heavy diesel engines and machinery, from trucks and trailers to earthmoving and agricultural gear. Every repair is backed by genuine parts, dealer-level diagnostic scan tools and a focus on minimising downtime, so your equipment keeps performing at its best.

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What makes Willy’s the go-to for heavy machinery repairs?

We get it. There’s nothing worse than dealing with a mechanic who takes forever to diagnose the problem and then drags their feet on the repairs. Time is money, and when your machinery’s down, you’re losing both. That’s where we step in at Willy’s Workshop.

Skilled team. Top-of-the-line tools.
Our skilled technicians know heavy machinery inside and out, and we get straight to the root of the problem with top-of-the-line diagnostic tools.
OEM parts or better.
We use genuine OEM parts, or equivalent high-quality parts if OEM is unavailable, ensuring reliable performance.
Lasting solutions and advice you can trust.
We’re committed to delivering long-lasting solutions, getting your machinery back on track faster, and never cutting corners on quality.

The benefits of routine servicing for heavy machinery

When you choose Willy’s for your heavy machinery repairs, you’re getting reliable solutions that are built for long-term performance, from engine rebuilds to transmission repairs and rebuilds. Here’s what you can expect when you choose us:

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Increased efficiency

When you bring your machinery to Willy’s, you’re setting your gear up for peak performance. We get straight to the root cause with the latest aftermarket and dealer diagnostic tools, so repairs are faster and more accurate. This means less time spent in the workshop and more time on the job, boosting your overall productivity.

Prolonged lifespan

At Willy’s, we don’t just fix the issue – we focus on keeping your machinery running longer. With preventative maintenance repairs and genuine OEM parts, we help extend the life of your equipment. By addressing potential issues before they become costly problems, your machinery will run smoother for longer, saving you from expensive replacements down the line. You’ll get the most out of every machine you own, maximising its value over time.

Improved safety

We know that safety is non-negotiable when it comes to heavy machinery. That’s why our repairs focus on not just performance, but making sure everything runs safely. By fixing issues that could lead to breakdowns or accidents, we help you protect your team and your equipment, reducing the risk of expensive repairs or dangerous situations down the line.

Heavy Diesel Performance Tuning

Get the most out of your equipment with a performance tune from our diesel tuning Brisbane or diesel tuning Sunshine Coast workshop.

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Tips for maintaining your heavy machinery

Keeping your heavy machinery in top condition takes a bit of effort and know-how. To make sure your gear runs smoother for longer and avoids costly breakdowns, follow these simple yet effective maintenance tips:

Regular Inspections

A small issue can turn into a costly breakdown if left unchecked. Make it a habit to inspect your machinery for leaks, wear and loose components. Catching problems early means fewer surprises and less downtime.

Frequent Lubrication

Friction is the enemy of moving parts. Keep everything well-lubed to prevent excessive wear, overheating and breakdowns. Use the right grease and oil for your equipment, and don’t skip on quality.

Keep it clean

Dirt, dust and grime aren’t just cosmetic issues – they can clog filters, damage components, and reduce efficiency. Regularly clean your machinery, especially air filters, cooling systems, and moving parts, to keep it performing at its best.

Stick to maintenance schedules

Manufacturers set service schedules for a reason. Whether it’s oil changes, filter replacements, or full inspections, sticking to a proper maintenance routine keeps your machinery running longer and stronger. Don’t wait for a problem to force you into the workshop – stay ahead of the game.

Why Willy’s Workshop?

Frustrated with sluggish performance or machinery that can’t keep up? Our diesel mechanic Brisbane workshop in Oxley and diesel mechanic Sunshine Coast workshop in Warana are ready to fix it right the first time.

At Willy’s Workshop, we don’t cut corners. From overhauling engines to solving tough hydraulic or electrical issues, we dig deep to find the root cause and fix it right the first time.

With skilled technicians, top-quality parts, and a focus on lasting results, we’ll get your trucks, 4WDs, and heavy machinery back in action – and keep them running stronger for longer. More uptime, less stress, and a job well done every time – that’s what you get with Willy’s.

Testimonials

What our customers have to say

Sorted out issues with my Ford Everest

The guys at Willy's sorted out issues with my Ford Everest. Friendly staff and fast turnaround, couldn't recommend them enough

L Luke Madden

Couldn’t be more impressed with the workmanship from the guys.

New to the coast and chose Willys workshop to do a tune and service on my Range Rover Evoke. Couldn't be more impressed with the workmanship from the guys. More power and better fuel economy, great staff and will continue to use. Highly recommend

J Jarrod Humm

Would happily recommend this workshop.

Willys did a great job in diagnosing and fixing the problems with my Mercedes-Benz ML 350. Would happily recommend this workshop.

L Luke

What an awesome place to have work done to your car. Excellent.

Anthony you’re such a knowledgeable person and ever so helpful and informative. Highly appreciated and recommend Willys to anyone wanting work done on cars etc. Well done.

G Glenn Dunstan

Don’t let your diesel slow you down. Reach out to Willy’s Workshop today and we’ll take care of the rest

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Got questions about keeping your heavy diesel in top shape? We’ve got answers! Check out our FAQ section to learn more about how our expert services can keep your trucks, 4WDs and machinery in excellent condition.

FAQ

Frequently asked questions

What types of heavy diesel vehicles and machinery do you service?

We service and repair the full range of heavy diesel, from highway trucks and prime movers to earthmoving and agricultural machinery, marine engines and heavy 4WDs. That covers makes like Kenworth, Iveco, Hino and Isuzu, along with excavators, loaders, tractors and generator sets. Whether it’s a Kenworth 909 needing a top-end rebuild, an Iveco Stralis throwing fault codes, or a fleet of utes due for routine servicing, our technicians have the dealer-level diagnostic tools and heavy-duty experience to handle it. If you’re not sure whether we cover your machine, call our Oxley or Warana workshop and we’ll let you know straight away.

How often should I bring my diesel in for a service?

It depends on how hard the machine works. As a general guide, most heavy diesels are due for a service every 10,000 to 20,000 kilometres or every 6 to 12 months, whichever comes first. Equipment that idles for long stretches, works in dust and heat, tows heavy or runs short trips needs attention more often, because oil and filters break down faster under load. The smarter approach is a schedule built around your duty cycle rather than a fixed number, so you catch wear before it becomes a breakdown. Bring your logbook to our Oxley or Warana workshop and we’ll set a servicing interval that suits how you actually use the vehicle.

Does Willy's use OEM parts for repairs?

Yes. We fit genuine OEM parts wherever they’re available, because they’re made to the exact tolerances your engine and driveline were designed around, which protects reliability and keeps your warranty intact. Where a genuine part is on long backorder or no longer made, we use high-quality equivalent parts from reputable suppliers and tell you exactly what’s going in and why. We won’t fit cheap no-name parts to cut corners, because on a heavy diesel that’s how a small repair turns into a major one. If you have a preference on parts, let us know and we’ll work to it.

How fast can you get my gear back on the job?

We know every hour of downtime costs you, so we work to turn jobs around quickly without cutting corners. The first step is fast, accurate diagnosis with dealer-level scan tools, so we fix the actual fault the first time instead of chasing symptoms. Straightforward servicing and common repairs are often same-day or next-day, while larger jobs like engine or transmission rebuilds take longer because they’re done properly and tested before they leave. We’ll give you a realistic timeframe up front and keep you posted, and where it helps we’ll prioritise the work that gets your truck or machine earning again soonest.

What are the signs my heavy diesel needs attention?

A few warning signs are worth acting on early. Excessive or unusual exhaust smoke, a clear drop in power or fuel economy, hard starting, knocking or rattling, oil or coolant leaks, and any dashboard or fault-code warning all point to something that needs checking. On heavy machinery, also watch for rising operating temperatures, low power under load and longer cranking. The sooner these are diagnosed, the cheaper and simpler the fix usually is, because catching a failing injector, turbo or seal early stops it taking other components with it. If your truck or machine is doing any of these, book it in at our Brisbane or Sunshine Coast workshop for a proper diagnosis.