The Caterpillar D4D is an industrial crawler tractor produced from 1963 to 1977. It features a Caterpillar D330 5.7L 4-cylinder diesel engine producing 65 hp (48.5 kW) net power. The tractor has a 5-speed gear transmission with 5 forward and reverse gears. It is equipped with 13-inch wide tracks and weighs 13,000 lbs (5896 kg). The D4D has an open operator station and uses spur gear final drives. Attachments include front-mount blades Caterpillar 4S and 4A, with the 4A blade capable of angling 25° and hydraulic lift.
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