Meet Leigh Southwick – Director of Heavy Duty Engines & Transmissions Pty Ltd
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With over two decades of dedicated experience in heavy-duty engine and transmission repairs, Leigh Southwick is your trusted expert in keeping powerful machinery operating at peak performance.
Factory-trained in market-leading brands including Deutz, MTU, Detroit Diesel engines, and Allison Transmissions, Leigh has built a solid reputation for his exceptional diagnostic skills, comprehensive repairs, and meticulous unit overhauls.
In August 2018, Leigh founded Heavy Duty Engines & Transmissions Pty Ltd in Central Queensland. Since then, he has successfully grown the business, continuously enhancing his expertise and expanding service capabilities.
Now proudly based in North Brisbane, Leigh offers extensive coverage stretching from Brisbane to the Gladstone region, committed to delivering unmatched quality workmanship. He prides himself on rapid, reliable repairs that minimize downtime and consistently outperform major repair facilities.
Specializing in fleet servicing, mobile crane vehicles, refuse vehicles, and extensive fleet maintenance for high-profile clients such as JJ’s Waste & Recycling, Cross Cranes, and McCraw Transport, Leigh’s business utilizes advanced diagnostic tools including Allison DOC and Detroit Diesel Diagnostic Link to ensure precision in troubleshooting and repairs.
Leigh's services include expert diagnostic troubleshooting, breakdown assistance, regular fleet inspections, tailored labour hire for short or long-term needs, comprehensive servicing and repairs, and meticulous engine and transmission overhauls using manufacturer-specific tooling for optimal results.
Leigh's commitment is clear: transparent pricing, no hidden costs, and competitive rates combined with superior service standards. Choose Heavy Duty Engines & Transmissions for excellence you can rely on.
