Unimog 425
Motor vehicle
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Key Takeaways
- The Unimog 425 is the first series production heavy duty Unimog series, made by Daimler-Benz AG from 1975 to 1988 in the Mercedes-Benz Gaggenau plant, alongside the long-wheelbase model Unimog 435.
- However, series production models were equipped with 125 PS (92 kW; 123 hp) or 150 PS (110 kW; 148 hp) engines, and therefore called U 1300 and U 1500 .
- The 425 was the first Unimog to feature the "edgy cab", which is still used in the Unimog today.
- Front-wheel drive can be manually enabled.
- All four wheels have the same size; the braking system is a pneumatic, dual-circuit system with disc brakes on all wheels.
The Unimog 425 is the first series production heavy duty Unimog series, made by Daimler-Benz AG from 1975 to 1988 in the Mercedes-Benz Gaggenau plant, alongside the long-wheelbase model Unimog 435. It was first presented to the public on the 1974 DLG show in Frankfurt, then named Unimog U 120, indicating a power output of 120 PS (88.3 kW; 118.4 hp). However, series production models were equipped with 125 PS (92 kW; 123 hp) or 150 PS (110 kW; 148 hp) engines, and therefore called U 1300 and U 1500. Daimler-Benz made three types of the Unimog 425, and a total number of 3135 were built, making the 425 much rarer compared to the longer wheelbase, but otherwise similar Unimog 435, of which more than 30,000 were built. The 425 was the first Unimog to feature the "edgy cab", which is still used in the Unimog today.
Technical description
The Unimog 425 is a two-axle lorry with a downswept ladder frame and rear-wheel drive. Front-wheel drive can be manually enabled. Both axles are coil-sprung, live, portal axles, with panhard rods, torque tubes, and hydraulic shock absorbers. All four wheels have the same size; the braking system is a pneumatic, dual-circuit system with disc brakes on all wheels. A trailer braking system was available as a factory option. For powering (farm) implements, the 425 has two switchable (540 and 1000/min) PTO shafts, and a hydraulic rear three-point linkage. The steering is hydraulically power-assisted. Daimler-Benz offered only one engine, the turbocharged Mercedes-Benz OM 352 diesel engine.
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