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The CAT D9 Dozer is a legendary crawler tractor built for unmatched durability, power, and versatility in the world’s most demanding applications. Trusted for decades in construction, mining, quarrying, and heavy-duty earthmoving, the D9 delivers exceptional productivity with reduced owning and operating costs.
Dimensions
| 1. Ground Clearance | 18.1 in (459 mm) |
| 2. Track Gauge | 88.6 in (2250 mm) |
| 3. Width w/o Trunnions (standard shoe) | 113.0 in (2870 mm) |
| 4. Width over Trunnions | 130.3 in (3310 mm) |
| 5. Height (top of FOPS cab) | 150.4 in (3820 mm) |
| 6. Height (top of stack) | 152.6 in (3876 mm) |
| 7. Height (top of ROPS) | 157.5 in (4000 mm) |
| 8. Drawbar Height (center of clevis) | 30.0 in (763 mm) |
| 9. Length of Track on Ground | 136.6 in (3470 mm) |
| 10. Overall Length – Basic Tractor | 193.3 in (4910 mm) |
| 11. Length – Basic Tractor with Drawbar | 206.4 in (5242 mm) |
| 12. Length – Basic Tractor with Winch | 218.3 in (5545 mm) |
| 13. Length with SU Blade | 259.9 in (6601 mm) |
| 14. Length with U Blade | 274.3 in (6967 mm) |
| 15. Length with SS Ripper | 257.0 in (6529 mm) |
| 16. Length with MS Ripper | 257.4 in (6538 mm) |
| 17. Overall Length (SU Blade + SS Ripper) | 323.6 in (8219 mm) |
Dozer Blade
| Cat D9 Blade | Semi-Universal | Universal |
|---|---|---|
| Blade Capacity (SAE J1265) | 17.8 yd3 (13.6 m3) | 21.7 yd3 (16.6 m3) |
| Blade Width (over end bits) | 172.3 in (4376 mm) | 183.0 in (4648 mm) |
| Blade Height | 76.1 in (1934 mm) | 76.1 in (1934 mm) |
| Maximum Digging Depth | 23.9 in (606 mm) | 23.9 in (606 mm) |
| Ground Clearance at Full Lift | 56.0 in (1422 mm) | 56.0 in (1422 mm) |
| Maximum Tilt | 37.0 in (940 mm) | 39.9 in (1014 mm) |
| Blade Weight | 10587 lb (4802 kg) | 12016 lb (5450 kg) |
| Total Operating Weight* (with blade and single-shank ripper) | 110205 lb (49988 kg) | 111362 lb (50513 kg) |
Ripper
| Cat D9 Ripper | Single Shank | Single Shank Deep | Multi Shank |
|---|---|---|---|
| Maximum Penetration (standard tip) | 48.5 in (1231 mm) | 68.0 in (1727 mm) | 31.4 in (798 mm) |
| Maximum Penetration Force (shank vertical) | 35520 lbf (158 kN) | 38667 lbf (172 kN) | 34621 lbf (154 kN) |
| Pryout Force (M.S. with one tooth) | 74637 lbf (332 kN) | 74412 lbf (331 kN) | 81156 lbf (361 kN) |
| Maximum Clearance Raised (under tip pinned in bottom hole) | 34.7 in (882 mm) | 32.2 in (817 mm) | 34.6 in (879 mm) |
| Number of Pockets | 1 | 1 | 3 |
| Ripper Weight | 10701 lb (4854 kg) | 10981 lb (4981 kg) | 12136 lb (5550 kg) |
| Total Operating Weight (w/ SU Blade and noted ripper) | 110,205 lb (49,988 kg) | 110,485 lb (50,115 kg) | 111739 lb (50684 kg) |
Winch
| Winch Model | PA 140VS |
| Winch Weight | 3950 lb (1790 kg) |
| Winch Weight w/ Counterweight | 8150 lb (3700 kg) |
| Drum Width | 12.6 in (320 mm) |
| Wire Cable Diameter (Recommended) | 1.13 in (28 mm) |
| Wire Cable Diameter (Optional) | 1.25 in (32 mm) |
| Max Cable Length (Recommended) | 257 ft (78 m) |
| Max Cable Length (Optional) | 204 ft (62 m) |
| Wire Cable Ferrule Size, Outside Diameter | 2.4 in (60 mm) |
| Wire Cable Ferrule Size, Length | 2.8 in (70 mm) |
Undercarriage
| Shoe Type | Extreme Service |
| Standard Shoe Size | 24 in (610 mm) |
| Optional Shoe Size | 22 in (560 mm), 27 in (685 mm), 30 in (760 mm) |
| Number of Shoes (Each Side) | 43 |
| Number of Track Rollers Per Side | 8 |
| Number of Carrier Rollers Per Side | 1 (Optional) |
| Grouser Height | 3.3 in (84 mm) |
| Pitch | 9.4 in (240 mm) |
| Ground Clearance | 18.1 in (459 mm) |
| Length of Track on Ground | 136.6 in (3470 mm) |
| Track Gauge | 88.6 in (2250 mm) |
| Ground Contact Area | 45.6 ft2 (4.23 m2) |
Track Links and Shoes
| Shoe Size | Moderate Service | Extreme Service | Super Extreme Service |
|---|---|---|---|
| 22 in (560 mm), Heavy Duty | ✓ | ||
| 24 in (610 mm), Heavy Duty | ✓ | ✓ | |
| 27 in (685 mm), Heavy Duty | ✓ | ✓ | |
| 30 in (760 mm), Heavy Duty | ✓ | ||
| 24 in (610 mm), Heavy Duty, HDXL | ✓ | ||
| 27 in (685 mm), Heavy Duty, HDXL | ✓ | ||
| 30 in (760 mm), Heavy Duty, HDXL | ✓ | ||
| 24 in (610 mm) General Duty | ✓ | ||
| 27 in (685 mm) General Duty | ✓ |
Engine Details
| Engine | Cat C18 Tier 2 | Cat C18 Tier 4F |
|---|---|---|
| Number of Cylinders | 6 | 6 |
| Displacement | 1106 cu in (18.1 L) | 1106 cu in (18.1 L) |
| Bore | 5.7 in (145 mm) | 5.7 in (145 mm) |
| Stroke | 7.2 in (183 mm) | 7.2 in (183 mm) |
| Gross Power | 487 hp (363 kw) | 477 hp (356 kw) |
| Net Power | 452 hp (337 kw) | 440 hp (328 kw) |
| Power Measured @ | 1750 rpm | 1750 rpm |
| Fuel System | MEUI injection | Direct Injection |
| Compression Ratio | 16.3:1 | 16.0:1 |
| Aspiration | Turbocharged Aftercooled | Turbocharged Aftercooled |
| Emission Standards | US EPA Tier 2/3 Equivalent | US EPA Tier 4 Final + EU Stage V |
Operational Specs
| Operating Weight | 110225 lb (49988 kg) |
| Max Operating Weight (w/ Multi Shank Ripper) | 111739 lb (50684 kg) |
| Shipping Weight | 84373 lb (38271 kg) |
| Operating Voltage | 24 V |
| Alternator | 150 amps |
| Battery | 2×4 12 V, 200 Ah, RC: 425 min, CCA 1400, 4D BCI |
| Note | Cat D9 Operation Weight includes base machine chassis with pivot shaft, roller frames, hydraulic controls, blade tilt cylinder, coolant, lubricants, full fuel tank, ROPS, FOPS cab, SU Blade, Single-Shank Ripper, 24 in (610 mm) ES shoes and operator |
Operator Environment
| Cab | Sound-Suppressed Cab with ROPS / FOPS |
| ROPS | ISO 3471:2008 |
| FOPS | ISO 3449:2005 LEVEL II |
| Operator Seat | Fully adjustable air suspension seat |
| Operator Seat (Optional) | Heated, cooled, adjustable lumbar and bolsters |
| Seat Belt | Retractable seat belt 3 in (76 mm) with switch |
| HVAC | Air conditioner and heater with automatic climate control |
| Display | High-Definition Primary Touchscreen Display |
| Working Lights | 8x Halogen working lights |
| Working Lights (Optional) | 14x LED working lights or 14x High Output LED working lights |
| Sound Level (inside) | 78 dB(A) |
| Sound Level (outside) | 116 dB(A) |
Transmission
| Type | Planetary powershift transmission with electronic enhanced auto shifting (EAS) |
| Number of Gears | 3F / 3R |
| Max Forward Speed | 6.8 mph (11.0 km/h) |
| Max Reverse Speed | 8.4 mph (13.6 km/h) |
| Torque Converter | Torque converter with stator clutch (electronic control) |
Steering and Brakes
| Steering Type | Differential |
| Service Brakes | 8x 15.5 in (393.7 mm) spring applied wet discs |
| Parking Brake | Electronic |
Hydraulic System
| Type | Electronically controlled load sensing hydraulics |
| Pump Type | Piston-type geared to flywheel |
| Steering Pump Flow | 96 gal/min (363 L/min) |
| Fan Pump Flow | 21 gal/min (80 L/min) |
| Tilt Cylinder Rod End Flow | 53 gal/min (200 L/min) |
| Tilt Cylinder Head End Flow | 53 gal/min (200 L/min) |
| Relief Valve Setting (Lift Cylinder) | 3800 psi (26200 kPa) |
| Relief Valve Setting (Tilt Cylinder) | 2799 psi (19300 kPa) |
| Relief Valve Setting (Ripper Lift) | 3800 psi (26200 kPa) |
| Relief Valve Setting (Ripper Pitch) | 3800 psi (26200 kPa) |
| Relief Valve Setting (Steering System) | 5874 psi (40500 kPa) |
Service Refill Capacities
| Fuel Tank Capacity | 254 gal (963 L) |
| DEF Tank Capacity (Tier 4F only) | 9.5 gal (36 L) |
| Engine Oil Capacity | 10 gal (36 L) |
| Cooling System Capacity | 21 gal (81.3 L) |
| Powershift Transmission Capacity | 40 gal (150 L) |
| Final Drives Capacity (each side) | 4 gal (15 L) |
| Roller Frames Capacity (each side) | 12 gal (45 L) |
| Pivot Shaft Compartment | 8 gal (30 L) |
| Hydraulic Tank Capacity | 24 gal (89 L) |
| Winch Oil Capacity | 4 gal (15 L) |
Equipped with advanced Caterpillar technology, a robust powertrain, and a redesigned operator environment, the D9 combines high performance with operator comfort and machine longevity. Whether ripping rock, pushing heavy loads, or clearing massive job sites, the CAT D9 stands out as a top-tier choice in the large bulldozer category – providing the perfect balance of power, efficiency, weight and control.
