For more than 60 years, Leith Engineering has been manufacturing high-quality agricultural equipment for farmers and contractors across Australia. Our trailers are designed and built locally using Australian-sourced materials and quality components to ensure strength, safety, and long-term reliability.
As draper fronts continue to evolve and increase in size and weight, our trailers are engineered to safely carry the additional load, providing confidence and peace of mind during transport.

About us
Leith Engineering was officially registered as a manufacturer of agricultural machinery and provider of general repairs in 1980. However, the foundations of the business were laid decades earlier. Wally Leith began building and selling side trailers in 1960, followed by the introduction of the “drop spreader” in 1963. This innovative machine was designed and manufactured to enable the fast and efficient application of gypsum as a soil improver, addressing the practical needs of Australian farmers.
By the mid-1970s, the business had expanded significantly, employing local staff and increasing its manufacturing capacity. As demand grew, so did the product range. The original drop spreader was redeveloped into a trailing model, produced in multiple sizes and available with either hydraulic or power take-off (PTO) drive systems. Alongside this growth, Leith Engineering also manufactured custom items to meet specific client requirements and established a dedicated farm machinery maintenance and repair service…
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