Caterpillar D9
The Caterpillar D9 is a tractor produced by Caterpillar. It is equipped with a 1473 ci 24.1 L engine. The listed engine power is Diesel (net): 286 hp / 213.3 kW. Transmission: 3 forward and 2 reverse. Drive type: crawler. Operating weight: 66025 lbs 29948 kg.
Engine Power
Diesel (net): 286 hp / 213.3 kW
Drive & Traction
crawler
Transmission
3 forward and 2 reverse
Operating Weight
66025 lbs
29948 kg
Overview
 | 1955 - 1959
Model year 1955-19561956-1959
Agricultural Crawler tractor |
|---|
Production | |
|---|---|
Manufacturer | Caterpillar |
Agricultural Crawler tractor | |
Built in Peoria, Illinois, USA | |
Caterpillar D9 Engine | |
|---|---|
Caterpillar 24.1L 6-cyl diesel | |
Engine details ...  |
Caterpillar D9 Power | |
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Engine (net) | 286 hp
213.3 kW |
Drawbar (claimed) | 230 hp
171.5 kW |
Drawbar (tested) | 252.2 hp
188.1 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Drive | crawler |
Open operator station. | |
Dimensions & Tracks | |
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Weight | 66025 lbs
29948 kg |
Tracks | |
Full dimensions and tracks ...  | |
References | |
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 | |
Farming on the contour published in 1954, by Caterpillar |
Engine
Engine Detail — 1473 ci / 24.1 L Diesel
Manufacturer | Caterpillar D353 |
Configuration | turbocharged diesel, 6-cylinder, liquid-cooled |
Displacement | 1473 ci
24.1 L |
Bore/Stroke | 6.25x8.00 inches
159 x 203 mm |
Power (net) | 286 hp
213.3 kW |
Compression | 15.5:1 |
Rated RPM | 1240 |
Starter | 2-cylinder gas pony engine |
Starter volts | 6 *Electric starter for pony engine |
Transmission
Transmission options | |
|---|---|
6-speed gear | |
3-speed torque converter |
Transmission — 6 forward and reverse gear
Type | gear |
Gears | 6 forward and reverse |
Clutch | wet disc |
 | |
Transmission — 3 forward and 2 reverse torque converter
Type | torque converter |
Gears | 3 forward and 2 reverse |
 | |
Dimensions
Caterpillar D9 Tracks |
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Dimensions | |
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Length | 215 inches
546 cm |
Width | 120 inches
304 cm |
Height | 105 inches
266 cm |
Operating weight | 66025 lbs
29948 kg |
Gauge | 90 inches
228 cm |
Tests
Nebraska Tractor Test 584 | |
|---|---|
Diesel 6-speed crawler
July 31 - August 4, 1956
Link: Nebraska Tractor Test 584 file | |
Drawbar performance | |
Max power | 252.2 hp
188.1 kW |
Gear 3 used for power test. | |
Max pull | 56724 lbs
25730 kg |
Gear 1 used for pull test. | |
Photos
Caterpillar D9 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Caterpillar D9 based on its 286 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁 | Commercial / Field Scale | High horsepower articulated/4WD field plowing. |
Rotary Cutter / MowerMowing & Clearing | 15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼 | Commercial / Field Scale | Large commercial field and roadside mowing operations. |
Rotary TillerSeedbed Prep | 90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机 | Commercial / Field Scale | Deep intensive seedbed preparation for commercial row crops. |
Disc HarrowSecondary Tillage | 24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙 | Commercial / Field Scale | Broad-acre grain tillage for high-drawbar tractors. |
Hay BalerHay & Forage | Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m) | Commercial / Field Scale | High-capacity commercial forage harvesting (1000 RPM PTO). |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Caterpillar D9.
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Caterpillar D9 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Caterpillar D9.
Converted Equivalents:
Horsepower (HP)286 hp
Kilowatts (kW)213.3 kW
Metric Horsepower (PS / CV)290 PS
Direct Competitor Comparison
Compare Caterpillar D9 against same-era industry alternatives in the same horsepower class.
Current Model
Caterpillar
Caterpillar D9
Engine Power:Diesel (net): 286 hp / 213.3 kW
★ Baseline Reference
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