Caterpillar D4 tractor specifications

1938 - 1959

1938 - 1959 Model year 1938-19471947-1959 Agricultural Crawler tractor

Production

Production Manufacturer:Caterpillar
Type:Agricultural Crawler tractor
Factory:Peoria, Illinois, USA

Caterpillar D4 Power

Caterpillar D4 Power Drawbar (tested):35.06 hp
26.1 kW
Belt (tested):39.82 hp
29.7 kW
power test details ...

1938 - 1959

Model year 1938-19471947-1959

Agricultural Crawler tractor

Nebraska Tractor Test 273

Nebraska Tractor Test 273
Diesel 5-speed crawler October 14 - 28, 1936 Link: Nebraska Tractor Test 273 file
Belt power (max):	39.82 hp 29.7 kW
Belt fuel use (max):	2.9 gal/hour 11.0 l/hour
Drawbar performance
Max power:	35.06 hp 26.1 kW
Gear 2 used for power test.
Max pull:	7852 lbs 3561 kg
Gear 1 used for pull test.

Caterpillar D4 Engine

Caterpillar D4 Engine Caterpillar 5.1L 4-cyl diesel Fuel tank:20 gal
75.7 L
Engine details ...

1938 - 1959

Model year 1938-19471947-1959

Agricultural Crawler tractor

Engine Detail

Engine Detail
Caterpillar D4400
diesel
4-cylinder
liquid-cooled
The D4400 was used on the RD4/D4 tractors through the 5T series.
Displacement:	312 ci 5.1 L
Bore/Stroke:	4.25x5.50 inches 108 x 140 mm
Air cleaner:	oil bath
Compression:	17.3:1
Rated RPM:	1400
Torque:	421 lb-ft 570.9 Nm
Torque RPM:	1000
Oil capacity:	16 qts 15.1 L
Coolant capacity:	44 qts 41.6 L

Mechanical

Mechanical Chassis:crawler
Steering:manual clutches
Cab:Open operator station.
Transmission:5-speed gear
Transmission details ...

1938 - 1959

Model year 1938-19471947-1959

Agricultural Crawler tractor

Transmission

Transmission
Type:	gear
Gears:	5 forward and 1 reverse
Clutch:	dry disc
Oil capacity:	20 qts 18.9 L

Speeds

Speeds

Dimensions & Tracks

Dimensions & Tracks Wheelbase:61.125 inches
155 cm
Weight:9970 to 10250 pounds
13-inch tracks Full dimensions and tracks ...

1938 - 1959

Model year 1938-19471947-1959

Agricultural Crawler tractor

Caterpillar D4 Tracks

Caterpillar D4 Tracks
Size:	13-inch tracks

Dimensions

Dimensions
Wheelbase:	61.125 inches 155 cm
Length:	120.7 inches 306 cm
Width:	62 inches 157 cm (44" gauge)
	78 inches 198 cm (60" gauge)
Height (hood):	60.625 inches 153 cm
Weight:	9970 lbs 4522 kg (44" gauge)
	10250 lbs 4649 kg (60" gauge)
Ground clearance:	11.125 inches 28 cm
Clearance (drawbar):	14.25 inches 36 cm
Gauge:	44 inches 111 cm
Gauge:	60 inches 152 cm

D4 Serial Numbers

D4 Serial Numbers 1936:4G1
1937:4G3663
1938:4G8858
1939:4G9912
1939:7J1
1940:7J1758
1941:7J4119
1942:7J7544
1943:7J2T1
1944:2T3306
1945:2T8224
1945:5T1
1946:5T3524
1947:5T6780

how to read serial numbers...