Komatsu D39EX-24
Configuration: D39EX-24 (no integrated machine control), 510 mm single-grouser shoes, standard power angle-tilt dozer 2,710 mm; EPA Tier 4 Final
22 sourced values · Sources: Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25
Dimension diagram
| A | Overall length | 4,385 mm |
| B | Overall height | 3,010 mm |
| C | Track length on ground | 2,345 mm |
| D | Ground clearance | 390 mm |
| E | Overall width | 2,080 mm |
| F | Track gauge / tread | 1,620 mm |
| G | Shoe / track width | 510 mm |
Weights
| Spec | Value | Source |
|---|---|---|
| Operating weight | 9,930 kg | Published: 9,930 kg Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-2521,891 lb. Incl. PAT dozer, ROPS cab, operator, full fuel. |
| Shipping / tractor weight | 8,790 kg | Published: 8,790 kg Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25Tractor weight (ROPS cab, U-frame for PAT dozer, lubricants, coolant, full fuel) (19,379 lb). |
Dimensions
Undercarriage / tires
| Spec | Value | Source |
|---|---|---|
| Undercarriage type | Crawler (steel tracks, PLUS rotating bushings) | Published: Crawler (steel tracks, PLUS rotating bushings) Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25 |
| Track rollers / shoes per side | 6 track rollers, 39 shoes per side | Published: 6 track rollers, 39 shoes per side Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25 |
Ground pressure
| Spec | Value | Source |
|---|---|---|
| Ground pressure | 36.1 kPa | Published: 36.1 kPa Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25ISO 16754, with dozer and ROPS cab (0.37 kgf/cm², 5.24 psi). |
Engine
| Spec | Value | Source |
|---|---|---|
| Engine model | Komatsu SAA4D95LE-7 | Published: Komatsu SAA4D95LE-7 Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25EPA Tier 4 Final. |
| Net power | 78 kW | Published: 78 kW Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25ISO 9249 / SAE J1349 (105 HP). |
| Gross power | 79 kW | Published: 79 kW Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25SAE J1995 (107 HP). |
| Displacement | 3.26 L | Published: 3.26 L Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25 |
| Rated speed | 2,200 rpm | Published: 2,200 rpm Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25 |
Hydraulics
| Spec | Value | Source |
|---|---|---|
| Pump / aux flow | 99 L/min | Published: 99 L/min Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25Piston pump discharge at rated rpm (26.2 US gpm). |
| System / relief pressure | 27.4 MPa | Published: 27.4 MPa Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-253,974 psi. |
Performance
| Spec | Value | Source |
|---|---|---|
| Blade capacity | 2.21 m³ | Published: 2.21 m³ Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25Standard PAT blade (2.89 yd³). |
| Blade / moldboard width | 2,710 mm | Published: 2,710 mm Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25Blade height 980 mm. |
| Max travel speed | 8.5 km/h | Published: 8.5 km/h Komatsu D39EX/EXi/PX/PXi-24 brochure, EN-D39-BR01-0526-V2 (© 2026, Tier 4 Final). Retrieved 2026-10-25Forward and reverse (5.3 mph). |
Similar models
| Brand | Model | Operating weight |
|---|---|---|
| Case | 850M | 10,124 kg |
| John Deere | 650 P-Tier | 9,600 kg |
| Caterpillar | D3 | 9,362 kg |
| Case | 750M | ≈ 9,148 kg |
| John Deere | 550 P-Tier | 8,552 kg |
| Caterpillar | D2 | 8,338 kg |
Compare side by side with Case 850M and John Deere 650 P-Tier