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Caterpillar D8
Configuration: Build 22A, standard D8 with Semi-Universal (SU) blade, single-shank ripper, 610 mm shoes; Tier 4 Final/Stage V.
22 sourced values · Sources: Cat D8 Track-Type Tractor Technical Specifications AEXQ3723 (05-2024), build 22A, Tier 4 Final/Stage V. Retrieved 2026-10-24
Dimension diagram
| A | Overall length | ≈ 7,910 mm |
| B | Overall height | ≈ 3,530 mm |
| C | Track length on ground | ≈ 3,210 mm |
| D | Ground clearance | 622 mm |
| E | Overall width | 4,038 mm |
| F | Track gauge / tread | ≈ 2,080 mm |
| G | Shoe / track width | 610 mm |
Weights
| Spec | Value | Source |
|---|---|---|
| Operating weight | 39,500 kg | Published: 39,500 kg Cat D8 Track-Type Tractor Technical Specifications AEXQ3723 (05-2024), build 22A, Tier 4 Final/Stage V. Retrieved 2026-10-24Includes SU blade, ripper, full fuel, ROPS/FOPS cab, 75 kg operator (87,083 lb). LGP: 38,085 kg. |
| Shipping / tractor weight | 34,530 kg | Published: 34,530 kg Cat D8 Track-Type Tractor Technical Specifications AEXQ3723 (05-2024), build 22A, Tier 4 Final/Stage V. Retrieved 2026-10-24Includes blade lift cylinders, 10% fuel, cab and ripper. |
Dimensions
Undercarriage / tires
| Spec | Value | Source |
|---|---|---|
| Undercarriage type | Crawler (steel tracks), elevated sprocket | Published: Crawler (steel tracks), elevated sprocket Cat D8 Track-Type Tractor Technical Specifications AEXQ3723 (05-2024), build 22A, Tier 4 Final/Stage V. Retrieved 2026-10-24 |
| Track rollers / shoes per side | 44 sections, 8 bottom rollers per side | Published: 44 sections, 8 bottom rollers per side Cat D8 Track-Type Tractor Technical Specifications AEXQ3723 (05-2024), build 22A, Tier 4 Final/Stage V. Retrieved 2026-10-24 |
Ground pressure
| Spec | Value | Source |
|---|---|---|
| Ground pressure | 89.7 kPa | Published: 89.7 kPa Cat D8 Track-Type Tractor Technical Specifications AEXQ3723 (05-2024), build 22A, Tier 4 Final/Stage V. Retrieved 2026-10-24ISO 16754 (13.01 psi). LGP: 54.6 kPa. |
Engine
Hydraulics
| Spec | Value | Source |
|---|---|---|
| Pump / aux flow | 280 L/min | Published: 280 L/min Cat D8 Track-Type Tractor Technical Specifications AEXQ3723 (05-2024), build 22A, Tier 4 Final/Stage V. Retrieved 2026-10-24Pump output (implement). Steering pump 311 L/min. |
| System / relief pressure | ≈ 24 MPa | Published: 24,000 kPa Cat D8 Track-Type Tractor Technical Specifications AEXQ3723 (05-2024), build 22A, Tier 4 Final/Stage V. Retrieved 2026-10-24Maximum operating pressure, implement. Bulldozer relief valve setting 32,500 kPa. |
Performance
| Spec | Value | Source |
|---|---|---|
| Blade capacity | 10.3 m³ | Published: 10.3 m³ Cat D8 Track-Type Tractor Technical Specifications AEXQ3723 (05-2024), build 22A, Tier 4 Final/Stage V. Retrieved 2026-10-24SU blade, ISO 9246 (13.47 yd³). U blade 11.8 m³. |
| Blade / moldboard width | 4,038 mm | Published: 4,038 mm Cat D8 Track-Type Tractor Technical Specifications AEXQ3723 (05-2024), build 22A, Tier 4 Final/Stage V. Retrieved 2026-10-24SU blade across end bits. |
| Max travel speed | 11.1 km/h | Published: 11.1 km/h Cat D8 Track-Type Tractor Technical Specifications AEXQ3723 (05-2024), build 22A, Tier 4 Final/Stage V. Retrieved 2026-10-243.0 forward. |
Similar models
| Brand | Model | Operating weight |
|---|---|---|
| Komatsu | D155AX-8 | 40,506 kg |
| John Deere | 1050 P-Tier | 42,640 kg |
| Liebherr | PR 756 G8 Litronic | 35,628 kg |
| Komatsu | D85EX-18 | 30,670 kg |
| John Deere | 950 P-Tier | 29,606 kg |
| Komatsu | D85PX-18 | 29,300 kg |
Compare side by side with Komatsu D155AX-8 and John Deere 1050 P-Tier