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Diesel Generators

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Tough job, power out, or off-grid adventure? Whatever’s thrown your way, diesel generators keep the lights on and the tools running. At Generators Australia, we’ve got reliable, fuel-smart options built for the Aussie way of life — ready to power your site, your home, or your next big trip.

Heavy-duty industrial diesel generator on steel frame for commercial and standby power applications

Shop by Power Rating: Industrial & Commercial Generator Diesel

Portable Diesel Generators & Small Diesel Generators (Up to 100 kVA)

Compact, efficient, and easy to move — portable diesel generators are ideal for tradies, campers, and off-grid setups. If you need dependable backup without the bulk, small diesel generators under 100 kVA strike the right balance between power and portability. They’re fuel-efficient, low maintenance, and built tough to handle the Aussie climate.

High-Capacity and Industrial Standby Diesel Generators (100+ kVA)

For commercial, mining, or agricultural operations, our industrial diesel generators deliver serious grunt. Designed for long run times and heavy loads, these units are the backbone of critical power supply systems. Whether you’re keeping a site running or protecting assets during outages, these high-capacity diesel generators have you covered.

Compact portable diesel generator with yellow tank ideal for small jobs and off-grid power

Choosing the Best Diesel Generators for Your Needs

Diesel Generators Price List and Value Factors

When checking the diesel generators price list, you’ll notice price often reflects quality, run time, and load capacity. Entry-level models suit occasional use, while premium units offer enhanced control systems and longer service life. Think of it as an investment in uptime — not just a purchase.

Key Buying Factors: Noise, Run Time, and Australian Conditions

Noise levels, fuel efficiency, and endurance matter — especially in Australia’s heat and dust. Look for diesel generators for sale Australia that feature soundproofing, robust cooling systems, and service accessibility. A quieter, efficient generator saves fuel and keeps operations smoother, day or night.

Diesel Generators for Sale Australia: Local Service

Diesel Generators Perth (or specific location if applicable)

Based in WA? Check out our range of diesel generators Perth customers trust for reliable off-grid and backup power. With local service and support, we make sure your setup runs smoothly from delivery to maintenance.

FAQs

What is a downside of using diesel generators?

They can be noisier and heavier than petrol units.

What size diesel generator to run a house?

Typically between 10–20 kVA, depending on your load.

Which is better, a diesel or a petrol generator?

Diesel — more fuel-efficient and durable for longer use.

What is the 20/20/20 rule for generators?

Run for 20 minutes, rest 20 minutes, inspect every 20 hours.

Diesel Generators FAQs

What are diesel generators used for in Australia?

Diesel generators are a go-to power source for worksites, remote properties, caravans, and anywhere the grid can't reach. They run harder and longer than petrol alternatives, making them popular with tradies, farmers, and serious campers who need reliable power day in, day out. True Gear stocks diesel generators suited to everything from RV touring to three-phase worksite power.

How much does a diesel generator cost in Australia?

Prices vary a fair bit depending on output and features. At True Gear, diesel generators range from around $6,900 for a quality single-phase unit like the Gentech Yanmar 6.8kVA, up to $20,999 for an 8kVA inverter-grade machine from Macfarlane. The right size for your needs will have the biggest impact on cost - don't overbuy if you don't need it.

What size diesel generator do I need for a caravan or RV?

For a caravan or RV, a 6kVA diesel inverter generator is usually the sweet spot - enough grunt to run air con, the fridge, and charge your devices without wasting fuel. True Gear stocks the Macfarlane 6kVA USR Diesel Inverter, which is purpose-built for RV use. Inverter models are worth the extra spend if noise is a concern on a campsite.

What brands of diesel generators does True Gear stock?

True Gear carries diesel generators from Gentech and Macfarlane Generators. Gentech runs Yanmar engines - a name trusted on worksites worldwide for durability and fuel efficiency. Macfarlane's USR range is built specifically for Australian conditions, covering both inverter and AVR models. More brands may be added as the range grows, so it's worth checking back.

What's the difference between a single-phase and three-phase diesel generator?

Single-phase generators cover most domestic and light commercial needs - tools, appliances, lighting. Three-phase is what you need if you're running heavy industrial equipment, large motors, or professional machinery on a worksite. True Gear stocks both options in the Gentech Yanmar 6.8kVA range, so you can pick the right one for the job without overspending.