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Caterpillar D8K

Caterpillar D8K tractor
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The Caterpillar D8K is a bulldozer produced from 1974 to 1982 by Caterpillar. It features a 300 hp turbocharged aftercooled diesel engine, a choice of 6-speed direct drive or 3-speed power shift transmissions, and a crawler drive. The machine includes a four-post ROPS with optional cab heating and air-conditioning. It has a fuel capacity of 170 gallons and hydraulic system capacity of 18.5 gallons. The D8K's dimensions include a length of 207 inches, width of 120 inches, and operating weight up to 70,500 lbs. Various front-mount blades are available as attachments, including 159", 167", and 184" widths with hydraulic lift and tilt capabilities.
Caterpillar D8Kbulldozertractor specsCaterpillar bulldozerD8K engineD8K transmissionD8K dimensionsD8K attachments
Power-
Founded-
ModelD8K

Technical Specifications

Detailed specifications and technical data for Caterpillar D8K

Power

Engine (net):300 hp (223.7 kW)

Engine

Type:turbocharged aftercooled diesel
Model:Caterpillar D342
Cooling:liquid-cooled inline
Starter:electric
Cylinders:6-cylinder
Rated RPM:1330
Bore/Stroke:5.75x8.00 inches (146 x 203 mm)
Power (net):300 hp (223.7 kW)
Displacement:1246 ci (20.4 L)
Oil capacity:34.8 qts (32.9 L)
Starter volts:24
Coolant capacity:128 qts (121.1 L)

Height

Cab:137 inches (347 cm)
Hood:92 inches (233 cm)
ROPS:134 inches (340 cm)
Exhaust:123 inches (312 cm)

Tracks

Width:22 inches (55 cm)
Area on ground:5437 in² (3.5 m²)
Length on ground:124 inches (314 cm)

Capacity

Fuel:170 gal (643.5 L)
Hydraulic system:18.5 gal (70.0 L)

Dimensions

Gauge:84 inches (213 cm)
Width:120 inches (304 cm)
Length:207 inches (525 cm)
8A dozer length:260 inches (660 cm)
8S dozer length:259 inches (657 cm)
8U dozer length:272 inches (690 cm)
Shipping weight:54700 lbs (24811 kg) *Power shift bare D8K without ROPS or cab.
Operating weight:70500 lbs (31978 kg) *Weight with ROPS and 8S bulldozer.

Electrical

Charging amps:35 (50 Optional)
Charging system:alternator

Hydraulics

Capacity:18.5 gal (70.0 L)
Pressure:2500 psi (172.4 bar)
Pump flow:78 gpm (295.2 lpm)

Mechanical

ROPS:Four-post ROPS. Cab available with heat and air-conditioning.
Drive:crawler

Production

Type:Bulldozer
Years made:1974 - 1982
Original price:$195,110 in 1983

Attachments

Blade 159"

Cut:20 inches (50 cm)
Lift:55 inches (139 cm)
Tilt:40 inches (101 cm)
Model:Caterpillar 8S
Mount:front-mount
Width:159 inches (403 cm)
Height:60 inches (152 cm)
Weight:12080 lbs (5479 kg)
Lift type:hydraulic-lift

Blade 167"

Cut:20 inches (50 cm)
Lift:55 inches (139 cm)
Tilt:41.7 inches (105 cm)
Model:Caterpillar 8U
Mount:front-mount
Width:167 inches (424 cm)
Height:60 inches (152 cm)
Weight:13310 lbs (6037 kg)
Lift type:hydraulic-lift

Blade 184"

Cut:24.2 inches (61 cm)
Lift:52 inches (132 cm)
Tilt:13 inches (33 cm)
Model:Caterpillar 8A
Mount:front-mount
Width:184 inches (467 cm)
Height:44 inches (111 cm)
Weight:11590 lbs (5257 kg)
Angling:25°
Lift type:hydraulic-lift

Transmission

Options:6-speed direct drive, 3-speed power shift
Power shift type:power shift
Direct drive type:direct drive
Power shift gears:3 forward and reverse
Direct drive gears:6 forward and reverse
Power shift oil capacity:124 qts (117.4 L)
Direct drive oil capacity:140 qts (132.5 L)

Related Models

Caterpillar D8L

Model:D8L

Caterpillar D8H

Model:D8H