Pre-owned Alternators

Pre-owned Alternators
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Australia’s trusted generator supplier

75+ Years Experience

Australia's longest-running generator specialists. We've powered businesses and homes since 1949.

Australian Owned

100% Australian owned and operated. Your purchase supports local workers and the national economy.

Ready-to-Use Delivery

Every generator is pre-tested and set up so you can start using it the moment it arrives.

Trusted by Thousands

Join thousands of satisfied customers across Australia who rely on our generators daily.

How to find what power generator you need

The Macfarlane Generators Power Calculator helps you estimate the generator size required for your application by calculating power demand, motor starting loads, and electrical conversions such as kVA, kW, amps, and horsepower. Designed for homeowners, tradies, and industrial operators, it provides practical tools and power consumption guides to help you select the right generator with confidence. Whether you're planning backup power, construction site equipment, or large-scale operations, the calculator simplifies generator sizing and power planning.

Power Calculator Questions? Call us on 1300 622 436