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Caterpillar D3B

Caterpillar D3B tractor
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The Caterpillar D3B is a bulldozer manufactured by Caterpillar from 1979 to 1987. It features a 65 hp (48.5 kW) Caterpillar 3204 5.2L 4-cylinder diesel engine with direct injection and a 3-speed power shift transmission. The D3B is a crawler-type tractor with spur gear final drives and a four-post ROPS, with an optional cab featuring heat and air-conditioning. It has a fuel capacity of 30 gallons and a hydraulic system capacity of 15 gallons, operating at 2500 psi pressure with a pump flow of 14.5 gpm. The tractor weighs between 11,300 and 15,160 pounds and rides on 12-inch wide tracks. The D3B can be equipped with a 95-inch wide Caterpillar 3P front-mount blade with hydraulic lift and optional hydraulic angle control.
Caterpillar D3Bbulldozertractor specsCaterpillar 3204 enginepower shift transmissioncrawler tractor65 hp tractor
Power-
Founded-
ModelD3B

Technical Specifications

Detailed specifications and technical data for Caterpillar D3B

Power

Engine power:65 hp (48.5 kW)

Engine

Type:diesel
Model:Caterpillar 3204
Power:65 hp (48.5 kW)
Cooling:liquid-cooled inline
Starter:electric
Cylinders:4-cylinder
Rated RPM:2400
Bore/Stroke:4.50x5.00 inches (114 x 127 mm)
Fuel system:direct injection
Displacement:318 ci (5.2 L)
Oil capacity:12.7 qts (12.0 L)
Starter volts:12
Coolant capacity:21.1 qts (20.0 L)

Height

Hood:66.9 inches (169 cm)
ROPS:105 inches (266 cm)
Exhaust:94.9 inches (241 cm)

Tracks

Width:12 inches (30 cm)
Area on ground:1723 in² (1.1 m²)
Length on ground:71.8 inches (182 cm)

Capacity

Fuel:30 gal (113.6 L)
Hydraulic system:15 gal (56.8 L)

Dimensions

Gauge:56 inches (142 cm)
Width:70.1 inches (178 cm)
Length:109.1 inches (277 cm)
3P dozer length:145 inches (368 cm)
Shipping weight:11300 lbs (5125 kg)
Operating weight:15160 lbs (6876 kg)

Electrical

Battery volts:12
Charging amps:40
Charging system:alternator

Hydraulics

Type:open center
Capacity:15 gal (56.8 L)
Pressure:2500 psi (172.4 bar)
Pump flow:14.5 gpm (54.9 lpm)

Mechanical

ROPS:Four-post ROPS. Cab available with heat and air-conditioning.
Drive:crawler
Final drives:spur gear

Production

Type:Bulldozer
Years made:1979 - 1987
Manufacturer:Caterpillar
Original price:$28,630 in 1985

Attachments

Cut:14.6 inches (37 cm)
Lift:33.3 inches (84 cm)
Tilt:14 inches (35 cm)
Type:Caterpillar 3P
Angle:manual-angle, hydraulic-angle (Optional)
Blade:95" Blade
Mount:front-mount
Width:95 inches (241 cm)
Height:33.1 inches (84 cm)
Weight:2187 lbs (992 kg)
Lift type:hydraulic-lift

Transmission

Type:power shift
Gears:3 forward and 1 reverse
Oil capacity:29.6 qts (28.0 L)

Related Models

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Model:D3