Caterpillar D7 Specs ( 1940-1954 )
Overview
The Caterpillar D7 is an agricultural crawler tractor manufactured in Peoria, Illinois, between 1940 and 1954. It is equipped with a 13.6L four-cylinder diesel engine and 20-inch tracks, featuring a shipping weight of 24,330 lbs and a five-speed gear transmission.
Ideal Applications
Verified Drawbar Capacity:
During Nebraska Tractor Test 358, the D7 achieved a maximum pull of 21,351 lbs and a tested drawbar power of 78.48 hp while operating in second gear.
Engine Configuration and Starting:
The liquid-cooled 831 ci diesel engine operates at a rated 1050 RPM and utilizes a 2-cylinder pony engine as its starting mechanism.
Mechanical and Ground Specifications:
This crawler tractor features manual clutch steering, contracting band brakes, and provides a ground clearance of 15.5 inches with a 74-inch gauge.
Production
| Description | Agricultural Crawler tractor / Built in Peoria, Illinois, USA |
|---|---|
| Manufacturer | Caterpillar |
Engine
| Engine type | Caterpillar 13.6L 4-cyl diesel |
|---|---|
| Fuel tank | 65 gal (246.0 L) |
| Air cleaner | oil bath |
| Bore/Stroke | 5.75x8.00 inches (146 x 203 mm) |
| Coolant capacity | 72 qts (68.1 L) |
| Description | Caterpillar / diesel / 4-cylinder / liquid-cooled |
| Displacement | 831 ci (13.6 L) |
| Oil capacity | 22 qts (20.8 L) |
| Rated RPM | 1050 |
| Starter type | 2-cylinder pony engine |
| Belt (claimed) | 92 hp (68.6 kW) |
| Belt (tested) | 89.10 hp (66.4 kW) |
| Drawbar (claimed) | 80 hp (59.7 kW) |
| Drawbar (tested) | 78.48 hp (58.5 kW) |
Transmission
| Clutch | dry metallic disc / dry metallic disc |
|---|---|
| Gears | 5 forward and 4 reverse / 5 forward and 4 reverse |
| Oil capacity | 40 qts (37.9 L) / 40 qts (37.9 L) |
| Transmission type | 5-speed gear |
| Type | gear / gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Contracting band brakes |
| Drive | crawler |
| Steering | manual clutches |
Dimensions & Tires
| Clearance (drawbar) | 17.25 inches (43 cm) |
|---|---|
| Gauge | 74 inches (187 cm) |
| Ground clearance | 15.5 inches (39 cm) |
| Height (hood) | 80 inches (203 cm) |
| Length | 162.25 inches (412 cm) |
| Shipping weight | 24,330 lbs (11036 kg) |
| Width | 97 inches (246 cm) |
Caterpillar D7 Tracks
| Width | 20 inches (50 cm) |
|---|
Dimensions & Tracks
| Description | 20-inch tracks |
|---|---|
| Weight | 24,330 lbs (11036 kg) |
Nebraska Tractor Test 358
| Belt fuel use (max) | 6.0 gal/hour (22.7 l/hour) |
|---|---|
| Belt power (max) | 89.10 hp (66.4 kW) |
| Description | Diesel 5-speed crawlerOctober 2 - 11, 1940Link: Nebraska Tractor Test 358 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 78.48 hp (58.5 kW) |
| Max pull | 21351 lbs (9684 kg) |
References
| Description | Product Line published in 1953, by Caterpillar / Farming on the contour published in 1954, by Caterpillar / Diesel D7 Tractor published in 1952, by Caterpillar |
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