Caterpillar D9
The Caterpillar D9 is a powerful and large tractor built for heavy-duty work. It's made by Caterpillar, a well-known company that makes big machines for construction and farming. This tractor is 215 inches long, 120 inches wide, and 105 inches tall, making it a very big machine. The D9 has a strong Caterpillar D353 engine with 6 cylinders. It's a diesel engine that uses a turbocharger to make more power. The engine is liquid-cooled, which helps it run smoothly even when working hard. It has 6 forward gears, allowing the driver to choose the right speed for different jobs. The tractor weighs 66,025 pounds, which helps it push and pull heavy loads. One unique feature is its starter, which uses a small 2-cylinder gas engine to get the big diesel engine going.
Quick specs
- Category
- Crawler
- Operating Weight
- 66,025 lb
- Transmission
- Gear / Torque Converter
Overview
About the Caterpillar D9
The Caterpillar D9 is a powerful and large tractor built for heavy-duty work. It's made by Caterpillar, a well-known company that makes big machines for construction and farming. This tractor is 215 inches long, 120 inches wide, and 105 inches tall, making it a very big machine. The D9 has a strong Caterpillar D353 engine with 6 cylinders. It's a diesel engine that uses a turbocharger to make more power. The engine is liquid-cooled, which helps it run smoothly even when working hard. It has 6 forward gears, allowing the driver to choose the right speed for different jobs. The tractor weighs 66,025 pounds, which helps it push and pull heavy loads. One unique feature is its starter, which uses a small 2-cylinder gas engine to get the big diesel engine going.
Full specifications
Every recorded spec
General
| Manufacturer | Caterpillar |
|---|---|
| Model | D9 |
| Category | Crawler tractor |
| Operating weight | 66,025lb |
Engine
| Make | Caterpillar |
|---|---|
| Model | D353 |
| Cylinders | 6 |
| Displacement | 1,473ci |
| Bore | 6.25in |
| Stroke | 8in |
Transmission
| Type | Gear / Torque Converter |
|---|---|
| Forward gears | 6 |
Dimensions
| Length | 215in |
|---|---|
| Width | 120in |
| Height | 105in |
| Operating weight | 66,025lb |
Head to head
D9 vs. Crawler median
How the Caterpillar D9 compares to other Crawler tractors
| Spec | This model | Crawler median | Difference | Percentile |
|---|---|---|---|---|
| Engine Displacement | 1,473 ci | 468 ci | +215% | 99th |
| Cylinders | 6 | 6 | at median | 50th |
| Forward Gears | 6 | 10 | -40% | 34th |
| Operating Weight | 66,025 lb | 23,320 lb | +183% | 99th |
| Length | 215 in | 146 in | +47% | 79th |
| Width | 120 in | 79.5 in | +51% | 88th |
| Height | 105 in | 90.6 in | +16% | 61st |
Medians and percentiles are computed from the crawler tractors in our database with a recorded value for each spec (sample sizes 134–192 models).
Compare to tractors with similar specs
Commonly compared Caterpillar tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Caterpillar D3B SA Special Application | — | 13,846 lb | — | Compare → |
| Caterpillar D4D SA Special Application | 74 hp | 15,200 lb | — | Compare → |
| Caterpillar D4E SA Special Application | — | 19,050 lb | — | Compare → |
| Caterpillar D5B SA Special Application | — | 23,320 lb | — | Compare → |
| Caterpillar D6 | — | 16,695 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Advance-Rumely 6A | — | 6,370 lb | — | Compare → |
| Advance-Rumely DoAll | — | 3,702 lb | — | Compare → |
| Advance-Rumely OilPull B 25/45 | — | 25,000 lb | — | Compare → |
| Advance-Rumely OilPull E 30/60 | — | 26,300 lb | — | Compare → |
| Advance-Rumely OilPull F 15/30 | — | 16,500 lb | — | Compare → |
Explore
Caterpillar siblings
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FAQ
Common questions
How many cylinders does the Caterpillar D9 have?
The Caterpillar D9 runs a 6-cylinder engine with a displacement of 1,473 ci.
Which transmission does the Caterpillar D9 use?
The Caterpillar D9 is equipped with a Gear / Torque Converter transmission with 6 forward gears.
What is the operating weight of the Caterpillar D9?
In working trim, the Caterpillar D9 comes in at roughly 66,025 lb.
How do I maintain a Caterpillar D9?
Routine service for the Caterpillar D9 covers engine oil and filter changes, hydraulic and coolant level checks, air filter cleaning, and scheduled inspections. Refer to the manufacturer's maintenance schedule for exact intervals.



