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Nearly half of the large dozers Caterpillar sells are D9 dozers—and for good reason. They’re the smart choice for dozens of applications and environments thanks to unmatched reliability, long life and a wide range of application-specific blades.
Like all Cat® dozers, the productive and efficient D9 is a fully integrated Cat machine—100% designed by Caterpillar and built with all Cat components that work together to deliver top performance and high availability. With the D9, you’ll move more dirt at the lowest possible cost.
| Engine Model | Cat® C18 |
| Engine Power - Net SAE J1349/ISO 9249 | 452 HP |
| Bore | 5.7 in³ |
| Stroke | 7.2 in |
| Displacement | 1106 in³ |
| Engine Power - Gross SAE J1995 | 487 HP |
| Engine Power - ISO 14396 | 479 HP |
| Emissions | U.S. EPA Tier 2 or Tier 3 equivalent |
| Note (1) | All engine ratings apply at 1,750 rpm. |
| Note (2) | No derating required up to 4570 m (15,000 ft) altitude. |
| Engine Model | Cat® C18 |
| Bore | 5.7 in³ |
| Stroke | 7.2 in³ |
| Displacement | 1106 in³ |
| Engine Power - Gross SAE J1995 | 477 HP |
| Engine Power - ISO 14396 | 468 HP |
| Engine Power - Net SAE J1349/ISO 9249 | 440 HP |
| Emissions | U.S. EPA Tier 4 / EU Stage V |
| Note (1) | All Engine ratings apply at 1,750 rpm. |
| Note (2) | No derating required up to 3658 m (12,000 ft) altitude. |
| Fuel Tank (Splash Fill) | 254 gal (US) |
| DEF Tank (Tier 4 only) | 9.5 gal (US) |
| Fuel Tank (Fast Fill) | 248 gal (US) |
| Cooling System | 21 gal (US) |
| Engine Crankcase* | 10 gal (US) |
| Powertrain | 40 gal (US) |
| Final Drives (each) | 4 gal (US) |
| Roller Frames (each) | 12 gal (US) |
| Pivot Shaft Oil | 8 gal (US) |
| Hydraulic System Tank | 24 gal (US) |
| Note | *With oil filters. |
| Note 2 | Biodiesel blends up to B20 (20% blend by volume) are acceptable when blended with 15 ppm (mg/kg) sulfur or less ULSD. B20 should meet ASTM D7467 specification (biodiesel blend stock should meet Cat biodiesel spec, ASTM D6751 or EN 14214). Cat DEO-ULSTM or oils that meet the Cat ECF-3, API CJ-4, and ACEA E9 specification are required. Consult your OMM for further machine specific fuel recommendations. |
| Note 3 | All non-road Tier 4 Final diesel engines are required to use only ultra-low sulfur diesel (ULSD) fuels containing 15 ppm (mg/kg) sulfur or less. |
| Note 4 | Diesel Exhaust Fluid (DEF) used in Cat Selective Catalytic Reduction (SCR) systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241. |
| Operating Weight | 110225 lb |
| Shipping Weight | 84373 lb |
| Note (1) | D9 Operation Weight includes hydraulic controls, blade tilt cylinder, coolant, lubricants, full fuel tank, ROPS, FOPS cab, SU Blade, Single-Shank Ripper, 610 mm (24 in) ES shoes and operator. |
| Note (2) | D9 Operation Weight includes base machine chassis with cab, pivot shaft, roller frames, track and ROPS. |
| Pump Type | Piston-type geared to flywheel |
| Pump Output - Steering | 96 gal/min |
| Fan Pump | 21 gal/min |
| Tilt Cylinder Flow - Rod End Flow | 53 gal/min |
| Tilt Cylinder Flow - Head End Flow | 53 gal/min |
| Lift Cylinder Relief Valve Setting | 3800 lbf/in |
| Tilt Cylinder Relief Valve Setting | 2799 psi |
| Ripper - Lift - Relief Valve Setting | 3800 psi |
| Ripper - Pitch - Relief Valve Setting | 3800 psi |
| Steering System - Pressure | 5874 psi |
| Tank Capacity | 24 gal/min |
| Note (1) | Steering pump output measured at 1,750 engine rpm and 30 000 kPa (4,350 psi). |
| Note (2) | Implement pump output measured at 1,750 engine rpm and 20 000 kPa (2,900 psi). |
| Note (3) | Fan pump output measured at 1,750 engine rpm and 17 000 kPa (2,470 psi) |
| Shoe Type | Extreme Service |
| Width - Shoe | 24 in |
| Shoes/Side | 43 |
| Grouser Height | 3.3 in |
| Pitch | 9.4 in |
| Ground Clearance | 18.1 in |
| Track Gauge | 88.6 in |
| Length - Track on Ground | 136.6 in |
| Ground Contact Area | 45.6 ft² |
| Track Rollers/Side | 8 |
| Number of Carrier Rollers | 1 per side (optional) |
| Steering Type | Differential |
| Brake Type | Spring Applied Wet Disc |
| Brake Diameter | 15.5 in |
| Brake Count | 8 |
| Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430) the system contains 2.1 kg of refrigerant which has a CO2 equivalent of 3.003 metric tonnes. |
| ROPS | Rollover Protective Structure (ROPS) meets the following criteria ISO 3471:2008. |
| FOPS | Falling Object Protective Structure (FOPS) meets the following criteria ISO 3449:2005 LEVEL II. |
| Sound | The average dynamic spectator sound power level when ISO 6395:2008 is used to measure the value for a machine is 116 dB(A). The measurement was conducted at 70% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan speeds. NOTE: The dynamic sound power level uncertainty is +/-2 dB(A). |
| Sound (1) | The average dynamic operator sound pressure level when ISO 6396:2008 is used to measure the value for an enclosed cab is 78 dB(A). The measurement was conducted at 70% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan speeds. The cab was properly installed and maintained. The measurement was conducted with the cab doors and the cab windows closed. NOTE: The dynamic operator sound pressure level uncertainty is +/-2 dB(A). |
| Sound (2) | Hearing protection may be needed when the machine is operated with an open operator station for extended periods, in a noisy environment, or with a cab that is not properly maintained. |
| 1.0 Forward | 2.2 mile/h |
| 2.0 Forward | 3.9 mile/h |
| 3.0 Forward | 6.8 mile/h |
| 1.0 Reverse | 2.7 mile/h |
| 2.0 Reverse | 4.8 mile/h |
| 3.0 Reverse | 8.4 mile/h |
| Type | Planetary powershift |
| Blade Capacity (SAE J1265) | 17.8 yd³ |
| Blade Width (over end bits) | 171.3 in |
| Blade Height | 76.1 in |
| Maximum Digging Depth | 23.9 in |
| Ground Clearance at Full Lift | 56 in |
| Maximum Tilt | 37 in |
| Blade Weight | 10587 lb |
| Total Operating Weight* (with blade and single-shank ripper) | 110205 lb |
| Note | * Total Operating Weight includes: single tilt hydraulics, coolant, lubricants, full fuel tank, ROPS, FOPS cab, 610 mm (24 in) ES track shoes and the noted blade and ripper type. |
| Blade Capacity (SAE J1265) | 21.7 yd³ |
| Blade Width (over end bits) | 184.3 in |
| Blade Height | 76.1 in |
| Maximum Digging Depth | 23.9 in |
| Ground Clearance at Full Lift | 56 in |
| Maximum Tilt | 39.9 in |
| Blade Weight | 12016 lb |
| Total Operating Weight* (with blade and single-shank ripper) | 111362 lb |
| Note | *Total Operating Weight includes: single tilt hydraulics, coolant, lubricants, full fuel tank, ROPS, FOPS cab, 610 mm (24 in) ES track shoes and the noted blade and ripper type. |
| Maximum penetration force * (shank vertical) | 35520 lbf |
| Maximum penetration depth (standard tip) | 48.5 in |
| Pryout Force | 74637 lbf |
| Maximum Clearance Raised - Under Tip, Pinned in Bottom Hole | 34.7 in |
| Number of Pockets | 1 |
| Weight | 10701 lb |
| Total Operating Weight* (with SU Blade and noted ripper) | 110205 lb |
| Note | *Total Operating Weight includes: single tilt hydraulics, coolant, lubricants, full fuel tank, ROPS, FOPS cab, 610 mm (24 in) ES track shoes and the noted blade and ripper type. |
| Maximum penetration force * (shank vertical) | 38667 lbf |
| Maximum penetration depth (standard tip) | 68 in |
| Pryout Force | 74412 lbf |
| Maximum Clearance Raised - Under Tip, Pinned in Bottom Hole | 32.2 in |
| Number of Pockets | 1 |
| Weight | 10981 lb |
| Total Operating Weight* (with SU Blade and noted ripper) | 110485 lb |
| Note | *Total Operating Weight includes: single tilt hydraulics, coolant, lubricants, full fuel tank, ROPS, FOPS cab, 610 mm (24 in) ES track shoes and the noted blade and ripper type. |
| Maximum Penetration Force - Shank Vertical | 34621 lbf |
| Maximum Penetration - Standard Tip | 31.4 in |
| Pry-Out Force - Multi-Shank Ripper with One Tooth | 81156 lbf |
| Maximum Clearance Raised - Under Tip, Pinned in Bottom Hole | 34.6 in |
| Number of Pockets | 3 |
| Weight | 12136 lb |
| Total Operating Weight* - With SU-Blade and Ripper | 111739 lb |
| Note | * Total Operating Weight includes: single tilt hydraulics, coolant, lubricants, full fuel tank, ROPS, FOPS cab, 610 mm (24 in) ES track shoes and the noted blade and ripper type. |
| Winch Model | PA 140VS |
| Weight* | 3950 lb |
| Oil Capacity | 4 gal (US) |
| Drum Width | 12.6 in |
| Wire Cable Diameter - Recommended | 1.13 in |
| Wire Cable Diameter - Optional | 1.25 ft |
| Maximum Drum Capacity - Recommended Cable Length | 257 in |
| Maximum Drum Capacity - Optional Cable Length | 204 ft |
| Wire Cable Ferrule Size - Outside Diameter | 2.4 in |
| Wire Cable Ferrule Size - Length | 2.8 in |
| Note | *Weight shown is base winch only. Does not include mounting arrangement, control arrangement, oil, or wire rope. With counterweight: 3700 kg (8,150 lb). |
| Note (2) | Variable speed, hydraulically driven, dual braking system, three-roller fairlead. |
| Ground Clearance* | 18.1 in |
| Track Gauge | 88.6 in |
| Width - Without Trunnions - Standard Shoe | 113 in |
| Width - Over Trunnions | 130.3 in |
| Height - FOPS Cab* | 150.4 in |
| Height - Top of Stack* | 152.6 in |
| Height - ROPS/Canopy* | 157.5 in |
| Drawbar Height (Center of Clevis)* | 30 in |
| Length - Track on Ground | 136.6 in |
| Overall Length - Basic Tractor | 193.3 in |
| Length - Basic Tractor - With Drawbar | 206.4 in |
| Length - Basic Tractor - With Winch | 218.3 in |
| Length - With SU-Blade** | 259.9 in |
| Length - With U-Blade | 274.3 in |
| Length - With Single-Shank Ripper | 257 in |
| Length - With Multi-Shank Ripper | 257.4 in |
| Overall Length - SU-Blade/SS Ripper | 323.6 in |
| Note (1) | *Includes grouser height for total dimensions on hard surfaces. |
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