In 1935 Mercedes-Benz put the Gaggenau-built L 6500 heavy-duty truck on the market. It was equipped with a powerful six-cylinder diesel engine and specially designed for long-haul transportation work. The three-axle version with a payload capacity of ten tons was sold as the L 10000.

• Cylinders 6
• Displacement 764 cu in
• Output 150 hp (110 kW)
• at engine speed 1700/min
• Top speed 35 mph
• Payload capacity 14330 lbs
• Production period 1935-1940
• Units produced 2137