Caterpillar industrial tractors

Caterpillar D7H

The Caterpillar D7H is a bulldozer produced from 1985 to 1995 by Caterpillar. It features a powerful 231 hp (gross) Caterpillar 3306 turbocharged diesel engine with 6 cylinders and a displacement of 10.5 liters. The tractor offers two transmission options: a 6-speed direct drive and a 3-speed power shift. It is a crawler-type tractor with double-reduction planetary final drives and an optional cab with air-conditioning. The D7H has a fuel capacity of 126 gallons and a hydraulic system capacity of 17.5 gallons. Its dimensions include a length of 182 inches, width of 113 inches, and operating weight up to 50,426 lbs with the 7S bulldozer attachment. Track widths vary from 20 to 26 inches. The tractor's electrical system includes a 12-volt battery and a 35-amp alternator with an optional 50-amp charging system. Available attachments include various front-mount blades with hydraulic lift and tilting capabilities.

Power-

Founded-

ModelD7H

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Technical Specifications

Detailed specifications and technical data for Caterpillar D7H

Power

Engine (net)	215 hp (160.3 kW)
Engine (gross)	231 hp (172.3 kW)

Engine

Type	turbocharged diesel
Model	Caterpillar 3306
Cooling	liquid-cooled inline
Starter	electric
Cylinders	6-cylinder
Rated RPM	2100
Bore/Stroke	4.75x6.00 inches (121 x 152 mm)
Fuel system	direct injection
Power (net)	215 hp (160.3 kW)
Displacement	638 ci (10.5 L)
Oil capacity	28.8 qts (27.3 L)
Power (gross)	231 hp (172.3 kW)
Starter volts	24
Coolant capacity	54.4 qts (51.5 L)

Height

Hood	90.5 inches (229 cm)
ROPS	135 inches (342 cm)
Exhaust	130 inches (330 cm)

Tracks

Width options	20 inches (50 cm), 22 inches (55 cm), 24 inches (60 cm), 26 inches (66 cm)
Area on ground	4560 in² (2.9 m²)
Length on ground	114 inches (289 cm)

Capacity

Fuel	126 gal (476.9 L)
Hydraulic system	17.5 gal (66.2 L)

Dimensions

Gauge	78 inches (198 cm)
Width	113 inches (287 cm)
Length	182 inches (462 cm)
Shipping weight	39663 lbs (17991 kg)
Operating weight	50426 lbs (22873 kg) Weight of D7H with 7S bulldozer.

Electrical

Battery volts	12
Charging amps	35 (50 Optional)
Charging system	alternator

Hydraulics

Type	open center
Capacity	17.5 gal (66.2 L)
Pressure	3300 psi (227.5 bar)
Pump flow	46.2 gpm (174.9 lpm)

Mechanical

ROPS	Cab available with air-conditioning
Drive	crawler
Final drives	double-reduction planetary

Production

Type	Bulldozer
Manufacturer	Caterpillar
Years produced	1985 - 1995

Attachments

150" Blade	Caterpillar 7S, front-mount, 150 inches width (381 cm), 50 inches height (127 cm), 46 inches lift (116 cm), 31.7 inches tilt (80 cm), 19.6 inches cut (49 cm), 7535 lbs (3417 kg), hydraulic-lift
155" Blade	Caterpillar 7U, front-mount, 155 inches width (393 cm), 50 inches height (127 cm), 46 inches lift (116 cm), 34.1 inches tilt (86 cm), 19.6 inches cut (49 cm), 8236 lbs (3735 kg), hydraulic-lift
174" Blade	Caterpillar 7A, front-mount, 174 inches width (441 cm), 44 inches height (111 cm), 44 inches lift (111 cm), 33.2 inches tilt (84 cm), Angling 25°, 26.3 inches cut (66 cm), 6784 lbs (3077 kg), hydraulic-lift

Transmission

Power shift type	power shift
Direct drive type	direct drive
Power shift gears	3 forward and reverse
Direct drive gears	6 forward and reverse
Transmission options	6-speed direct drive, 3-speed power shift
Power shift oil capacity	128 qts (121.1 L)
Direct drive oil capacity	128 qts (121.1 L)