This comparison evaluates the Komatsu D37 and John Deere 650J, 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 D37 | John Deere 650J |
|---|---|---|
| Engine & Power | ||
| Gross Horsepower | 91 HP | 90 HP |
| PTO Horsepower | — | — |
| Engine Manufacturer | Komatsu | John Deere |
| Cylinders | 4 | 4 |
| Displacement | 3.26 L | 4.5 L |
| Fuel Type | Diesel | Diesel |
| Drivetrain & Transmission | ||
| Transmission Type | Hydrostatic | Hydrostatic |
| Drive Type | Crawler | Crawler |
| Forward Speeds | 3 | 3 |
| Reverse Speeds | 3 | 3 |
| PTO & Hydraulics | ||
| PTO Type | ||
The Komatsu D37 delivers 91 HP compared to 90 HP on the John Deere 650J, providing more power for demanding tasks. It also weighs 19,842 lbs vs 18,598 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.
Both models can be equipped with front loaders if compatible. Verify loader availability and lift capacity specs with your local dealer, as configurations vary.
The John Deere 650J offers a 3-year powertrain warranty. Warranty data for the Komatsu D37 varies by dealer and region; confirm with your dealer.
| — |
| Live Independent PTO |
| PTO Speed | — | — |
| Hydraulic Flow | — | — |
| Hydraulic Pressure | — | 4,200 PSI |
| Remote Valves | — | 2 |
| Dimensions & Weight |
| Operating Weight | 19,842 lbs | 18,598 lbs |
| Length | 168 in | 161 in |
| Width | — | 79.1 in |
| Height | 109 in | 109.1 in |
| Wheelbase | — | — |
| Ground Clearance | — | 14.3 in |
| Hitch / Implements |
| 3-Point Category | — | — |
| Lift Capacity | — | — |
| Loader Compatibility | — | Yes - Integrated Blade |
| Warranty & Ownership |
| Powertrain Warranty | — | 3 years |
| Bumper-to-Bumper | — | 1 years |
| Pricing Signals | ||
| Typical Price | $140,400 | $280,000 |
| MSRP Min | $130,000 | $257,600 |
| MSRP Max | $149,500 | $302,400 |
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.