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Caterpillar D7H

Caterpillar D7H tractor
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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.
Caterpillar D7Hbulldozertractorspecificationsenginetransmissiondimensionshydraulicsattachments
Power-
Founded-
ModelD7H

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)

Related Models

Caterpillar D7G

Model:D7G