Fwd / Aec Other models
1 model in this series
FWD/AEC 850: heavy towing machine with a six-cylinder AEC A136 petrol engine, a gearbox with transfer box, and a weight of 8,840 kg
This series' name combines two commercial-vehicle makers: FWD (Four Wheel Drive Auto Company) of the United States, an early specialist in four-wheel-drive trucks, and AEC (Associated Equipment Company) of Britain, known for buses, trucks and its own engines. This register page groups the manufacturer's models that fall outside its named series.
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The AEC 850 is powered by a six-cylinder petrol engine of the AEC A136 type. Power runs through a four-speed constant-mesh gearbox with dog-clutch selection and an additional two-speed transfer box, the fuel tank holds 48 gallons; the machine weighs 8,840 kg.
An additional two-speed transfer box alongside the main gearbox is typical of heavy, off-road-capable towing machines with several driven axles, built for hauling large trailer loads over unmade ground. At a weight of 8,840 kg and with a six-cylinder petrol engine of this type, this is a considerably heavier and more powerful class than most agricultural tractors, built for drawbar work rather than tillage with mounted implements.
When buying such an old and rare heavy towing machine secondhand, the condition of the main and transfer gearboxes matters most, as both units carry heavy loads in this weight class. Also worth checking are the engine for compression and oil leaks, the fuel tank for tightness and corrosion, and the frame and axles for rust; spare parts for this combination of an American chassis and a British engine can now only be sourced through specialist collectors.
Sources: SpecCodex-Register: Kennwerte des Modells FWD/AEC 850
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