Caterpillar D6

The Caterpillar D6 is a tractor produced by Caterpillar. It is equipped with a 525 ci 8.6 L engine. Transmission: 5 forward and 4 reverse. Drive type: crawler. Operating weight: 16695 to 17330 pounds.

Overview

	1941 - 1947 Agricultural Crawler tractor

Production
Manufacturer	Caterpillar
Agricultural Crawler tractor
Built in Peoria, Illinois, USA

Caterpillar D6 Transmission
5-speed gear
Transmission details ...

Caterpillar D6 Power
Drawbar (tested)	74.82 hp 55.8 kW
Belt (tested)	92.52 hp 69.0 kW
Performance test details ...

Mechanical
Drive	crawler
Steering	manual clutch
Contracting band brakes
Open operator station.

Dimensions & Tracks
Wheelbase	85.625 inches 217 cm
Weight	16695 to 17330 pounds
16-inch tracks
Full dimensions and tracks ...

Belt Pulley
Diameter	13 inches 33 cm
Width	13 inches 33 cm
RPM	913
Speed	3200 ft/min 975.36 meters/min

References
Product Line published in 1953, by Caterpillar
Farming on the contour published in 1954, by Caterpillar

Engine

Engine options
Caterpillar 7.7L 6-cyl diesel
Caterpillar 8.6L 6-cyl diesel

Engine Detail — 468 ci / 7.7 L Diesel

Manufacturer	Caterpillar
Fuel Type	Diesel
Configuration	6-cylinder, liquid-cooled
Displacement	468 ci 7.7 L
Bore/Stroke	4.25x5.50 inches 108 x 140 mm
Air cleaner	oil bath
Rated RPM	1800
Starter type	2-cylinder pony engine
Oil capacity	19 qts 18.0 L
Coolant capacity	49 qts 46.4 L

Engine Detail — 525 ci / 8.6 L Diesel

Manufacturer	Caterpillar
Fuel Type	Diesel
Configuration	6-cylinder, liquid-cooled
Displacement	525 ci 8.6 L
Bore/Stroke	4.50x5.50 inches 114 x 140 mm
Air cleaner	oil bath
Rated RPM	1600
Starter type	2-cylinder pony engine

Transmission

Transmission — 5 forward and 4 reverse gear

Type	gear
Gears	5 forward and 4 reverse
Clutch	dry disc
Oil capacity	38 qts 36.0 L

Transmission — 5 forward and 4 reverse gear

Type	gear
Gears	5 forward and 4 reverse
Clutch	dry disc
Oil capacity	38 qts 36.0 L

Dimensions

Caterpillar D6 Tracks
Width	16 inches 40 cm

Dimensions
Wheelbase	85.625 inches 217 cm
Length	149.2 inches 378 cm
Width	80.5 inches (60" gauge) 204 cm
	94.5 inches (74" gauge) 240 cm
Height (hood)	75.25 inches 191 cm
Shipping weight	16,695 lbs (60" gauge) 7572 kg
	17,330 lbs (74" gauge) 7860 kg
Ground clearance	12.5 inches 31 cm
Clearance (drawbar)	14 inches 35 cm
Gauge	60 inches 152 cm
Gauge	74 inches 187 cm

Tests

Tractor Tests
NTTL 374: 468 diesel 5-speed crawler
NTTL 416: 525 diesel 5-speed crawler
NTTL 555: 525 diesel 5-speed crawler
NTTL 747: diesel 5-speed crawler

Nebraska Tractor Test 374
468 diesel 5-speed crawler September 6 - 13, 1941 Link: Nebraska Tractor Test 374 file
Belt power (max)	78.03 hp 58.2 kW
Belt fuel use (max)	5.7 gal/hour 21.6 l/hour
Drawbar performance
Max power	63.34 hp 47.2 kW
Gear 2 used for power test.
Max pull	16,674 lbs 7563 kg
Gear 1 used for pull test.

Nebraska Tractor Test 416
525 diesel 5-speed crawler July 11 - 23, 1949 Link: Nebraska Tractor Test 416 file
Belt power (max)	76.90 hp 57.3 kW
Belt fuel use (max)	5.5 gal/hour 20.8 l/hour
Drawbar performance
Max power	61.76 hp 46.1 kW
Gear 2 used for power test.
Max pull	16,222 lbs 7358 kg
Gear 1 used for pull test.

Nebraska Tractor Test 555
525 diesel 5-speed crawler July 25 - August 12, 1955 Link: Nebraska Tractor Test 555 file
Belt power (max)	92.52 hp 69.0 kW
Belt fuel use (max)	6.7 gal/hour 25.4 l/hour
Drawbar performance
Max power	73.34 hp 54.7 kW
Gear 2 used for power test.
Max pull	17,486 lbs 7931 kg
Gear 1 used for pull test.

Nebraska Tractor Test 747
Diesel 5-speed crawler 1960 Link: Nebraska Tractor Test 747 file
Drawbar performance
Max power	74.82 hp 55.8 kW
Fuel use	6.1 gal/hour 23.1 l/hour
Gear 2 used for power test.
Max pull	17,687 lbs 8022 kg
Gear 1 used for pull test.

Photos

Caterpilar D6, right side.

Caterpilar D6 with cab, left side.