This comparison evaluates the Komatsu D155AX-8 and Caterpillar D3, both classified as Industrial tractors. We analyze horsepower ratings (gross and PTO), operating weight, hydraulic flow capacity, 3-point hitch lift capacity, transmission type, warranty coverage, and typical pricing signals. Both models serve similar use cases, so differences in specific specs may influence your decision based on property size, planned implements, and budget. Specs are compiled from manufacturer literature and dealer listings when available, and we update records as sources are verified.
| Specification | Komatsu D155AX-8 | Caterpillar D3 |
|---|---|---|
| Engine & Power | ||
| Gross Horsepower | 354 HP | 85 HP |
| PTO Horsepower | 325.68 HP | 78.2 HP |
| Engine Manufacturer | Komatsu | Caterpillar |
| Cylinders | 6 | 4 |
| Displacement | 8.3 L | 3.4 L |
| Fuel Type | Diesel | Diesel |
| Drivetrain & Transmission | ||
| Transmission Type | HST | Powershift |
| Drive Type | Crawler | Crawler |
| Forward Speeds | 16 | 3 |
| Reverse Speeds | 8 | 3 |
| PTO & Hydraulics | ||
| PTO Type | ||
The Komatsu D155AX-8 delivers 354 HP compared to 85 HP on the Caterpillar D3, providing more power for demanding tasks. It also weighs 98,750 lbs vs 17,450 lbs.
Neither model is primarily a lawn tractor. Both can handle mowing with appropriate mower attachments, but they're designed for broader property maintenance tasks including loader work, tilling, and implement use.
The Komatsu D155AX-8 has a higher 3-point lift capacity (17,700 lbs vs 4,250 lbs), which generally correlates with better front loader capability. Loader compatibility: Yes - Integrated Blade.
| Live Independent PTO |
| Live Independent PTO |
| PTO Speed | 1000 | 1000 |
| Hydraulic Flow | 125 GPM | 28 GPM |
| Hydraulic Pressure | 5,510 PSI | 3,625 PSI |
| Remote Valves | 3 | 2 |
| Dimensions & Weight |
| Operating Weight | 98,750 lbs | 17,450 lbs |
| Length | 315.4 in | 166.9 in |
| Width | 152.8 in | 95.3 in |
| Height | 162.5 in | 117.1 in |
| Wheelbase | 189 in | 92 in |
| Ground Clearance | 26.2 in | 14.2 in |
| Hitch / Implements |
| 3-Point Category | Category III | Category II |
| Lift Capacity | 17,700 lbs | 4,250 lbs |
| Loader Compatibility | Yes - Integrated Blade | Yes - Integrated Blade |
| Warranty & Ownership |
| Powertrain Warranty | 3 years | 3 years |
| Bumper-to-Bumper | 1 years | 1 years |
| Pricing Signals | ||
| Typical Price | $200,000 | $175,000 |
| MSRP Min | $185,000 | $165,000 |
| MSRP Max | $215,000 | $185,000 |
Both models offer 3-year powertrain warranties. Warranty terms can vary by dealer and region, so confirm coverage details before purchase.
Before purchasing, verify dealer pricing and availability in your area, confirm current warranty terms, test-drive if possible, and assess which implements or attachments you'll need. Both specs and pricing can vary by region and dealer.