Machine models
Cat D9 specifications
D9 operating, shipping and winch weights describe different assemblies
The D9 operating-weight footnote includes its SU blade, single-shank ripper, working fluids, fuel, operator and specified shoes. Shipping weight covers a more limited chassis assembly. The smaller shipping figure cannot represent the complete dozer described by the operating configuration.
The PA 140VS winch has a separate base weight that excludes its mounting, controls, oil and rope. Its two drum-capacity entries also correspond to different rope diameters. The longer recommended cable is not a capacity guarantee when the larger optional rope is installed.
The engine tables distinguish emissions configurations with their own net ratings. Both use the C18 designation. Matching only the engine family therefore misses the emissions arrangement and the rating applicable to that machine.
Source: Original Caterpillar AEXQ2868 D9 specification, engine, weight and winch footnotes.The stator clutch changes what happens under a light load
The D9’s torque-converter stator can freewheel when torque multiplication is unnecessary. Under heavier loading or retarding conditions, the clutch locks it again. Caterpillar describes that automatic change separately from the electronic powershift transmission and differential steering.
A change in converter operation during the return portion of a cycle is not the same function as a commanded gear change.
The elevated sprocket arrangement also sends implement shock loads into the mainframe, while the suspended undercarriage follows uneven ground. The brochure describes those as structural and traction features, not an instruction to ignore track or final-drive condition during inspection.
Source: Caterpillar D9 product brochure PEDJ0512, elevated sprocket and stator-clutch operation.Optional automation controls different parts of the cycle
Automated Blade Assist moves the blade among preset pitch positions for loading, carrying and spreading. AutoCarry instead controls blade lift to maintain the desired load, while Automatic Ripper Control adjusts ripper height to limit track slip. Those functions do not become interchangeable because all are advertised as automation.
The current D9 page also distinguishes grouped fluid-service points from remote software updates. An update notification does not replace inspection of a mechanical complaint. Verify which automation options and software functions belong to the individual machine.
Source: Caterpillar D9 technology and serviceability sections.| Listing-entry count |
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| 1 |
Short answer
Cat D9: crawler dozer.
| Configuration | Documented field and quantity |
|---|---|
| D9 |
|
| Specification | D9 |
|---|---|
| Engine Model | Cat® C18 |
| Engine Power - Net SAE J1349/ISO 9249 | 452 hp |
| Bore | 145 mm / 5.7 in (linear bore; cubic-inch label was invalid) |
| Stroke | 183 mm / 7.2 in (linear stroke) |
| Displacement | 1,106 in³ |
| Engine Power - Gross SAE J1995 | 487 hp |
| Engine Power - ISO 14396 | 479 hp |
| Emissions | US EPA Tier 2 or Tier 3 equivalent |
| Specification | D9 |
|---|---|
| Operating Weight | 110,225 lb |
| Shipping Weight | 84,373 lb |
| Specification | D9 |
|---|---|
| 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 / 4.23 m² |
| Track Rollers/Side | 8 |
| Number of Carrier Rollers | 1 per side (optional) |
| Specification | D9 |
|---|---|
| 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 |
| Specification | D9 |
|---|---|
| Steering Type | Differential |
| Brake Type | Spring Applied Wet Disc |
| Brake Diameter | 15.5 in |
| Brake Count | 8 |
| Specification | D9 |
|---|---|
| Stroke | 183 mm / 7.2 in (linear stroke) |
| Engine Power - Gross SAE J1995 | 477 hp |
| Engine Power - ISO 14396 | 468 hp |
| Engine Power - Net SAE J1349/ISO 9249 | 440 hp |
| Emissions | US EPA Tier 4 / EU Stage V |
| Specification | D9 |
|---|---|
| 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 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 |
| Specification | D9 |
|---|---|
| Pump Type | Piston-type geared to flywheel |
| Pump Output - Steering | 96 gpm |
| Fan Pump | 21 gpm |
| Tilt Cylinder Flow - Rod End Flow | 53 gpm |
| Tilt Cylinder Flow - Head End Flow | 53 gpm |
| Lift Cylinder Relief Valve Setting |
|
| Tilt Cylinder Relief Valve Setting | 2,799 psi |
| Ripper - Lift - Relief Valve Setting | 3,800 psi |
| Ripper - Pitch - Relief Valve Setting | 3,800 psi |
| Steering System - Pressure | 5,874 psi |
| Tank Capacity | 89 L / 24 US gal (volume, not pump flow) |
| Specification | D9 |
|---|---|
| Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R1234yf (Global Warming Potential = 0.501). The system contains 1.850 kg of refrigerant, which has a CO2 equivalent of 0.001 metric tonnes |
| Specification | D9 |
|---|---|
| 1.0 Forward | 2.2 mph |
| 2.0 Forward | 3.9 mph |
| 3.0 Forward | 6.8 mph |
| 1.0 Reverse | 2.7 mph |
| 2.0 Reverse | 4.8 mph |
| 3.0 Reverse | 8.4 mph |
| Type | Planetary powershift |
| Specification | D9 |
|---|---|
| Blade Capacity (SAE J1265) | 17.8 yd³ / 13.6 m³ |
| 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 | 10,587 lb |
| Total Operating Weight* (with blade and single-shank ripper) | 110,205 lb / 49 988 kg |
| Specification | D9 |
|---|---|
| Blade Capacity (SAE J1265) | 21.7 yd³ / 16.6 m³ |
| Blade Width (over end bits) | 184.3 in |
| Maximum Tilt | 39.9 in |
| Blade Weight | 12,016 lb |
| Total Operating Weight* (with blade and single-shank ripper) | 111,362 lb / 50 513 kg |
| Specification | D9 |
|---|---|
| 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 | 10,701 lb |
| Total Operating Weight* (with SU Blade and noted ripper) | 110,205 lb / 49 988 kg |
| Specification | D9 |
|---|---|
| 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 |
| Weight | 10,981 lb |
| Total Operating Weight* (with SU Blade and noted ripper) | 110,485 lb / 50 115 kg |
| Specification | D9 |
|---|---|
| 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 | 12,136 lb |
| Total Operating Weight* - With SU-Blade and Ripper | 111,739 lb |
| Specification | D9 |
|---|---|
| Ground Clearance* | 18.1 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 |
| 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 |
| Specification | D9 |
|---|---|
| Winch Model | PA 140VS |
| Weight* | 3,950 lb |
| Oil Capacity | 4 gal (US) |
| Drum Width | 12.6 in |
| Wire Cable Diameter - Recommended | 1.13 in |
| Wire Cable Diameter - Optional | 1.25 in / 32 mm |
| Maximum Drum Capacity - Recommended Cable Length | 257 ft / 78 m (with recommended rope diameter) |
| 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 |
| Equipment group | crawler dozer |
|---|
| Base version | D7 | D9 | D4 |
|---|---|---|---|
| Engine power | D4: 43 hp | ||
| Weight | 65,644 lb | 110,225 lb | 10,860 lb |
| Fuel capacity | D7: 123 gal (US); D4: 30 gal | ||
| Ground pressure | D7: 10 psi | ||
| Drum width | D9: 12.6 in | ||
| Forum index | Equipment class queried | Names in the search | Matching titles |
|---|---|---|---|
| Heavy Equipment Forums | crawler dozer | Cat and the D9. That is too few titles to say what owners mostly ask about, so the most recent are listed instead | 8 |
- Is This CAT D9 Year 2019 (Heavy Equipment Forums, 2025-10-04)
- 19a563 D9 CAT (Heavy Equipment Forums, 2022-12-07)
- CAT D9 Part Numbers For Gauges Just Installed New Radiator Core (Heavy Equipment Forums, 2017-06-22)
- Caterpillar Dual D9 Pushing Scrapers (Heavy Equipment Forums, 2013-10-27)
| Observation date | Listing source | Equipment search | Listings |
|---|---|---|---|
| 2026-09-25 | MachineryTrader | Cat crawler dozer | 20 |
| Model | Listed | Model years | Lowest asking | Highest asking | Median asking | Median hours |
|---|---|---|---|---|---|---|
| D9 | 20 | 2012 to 2026 | $449,000 | $1,701,693 | $1,330,635 | 9,321 |
| Search date | Database | Names queried | Search result |
|---|---|---|---|
| 2026-09-24 | U.S. Consumer Product Safety Commission | Cat together with the crawler dozer models on this page | No matching recall in this search |
| Evidence class | Document, classification and recorded date |
|---|---|
| Manufacturer |
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| Forum threads |
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| Used-market listings |
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| Federal agency data |
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| Observation field | Recorded value |
|---|---|
| Title count | 8 |
| Forum indexes | Heavy Equipment Forums |
| Search wording | the D9 crawler dozer |
| Latest title quoted by the reference | Is This CAT D9 Year 2019 |
| Quantity | Earlier entry | Correct quantity and basis |
|---|---|---|
| Bore | 5.7 in³ | 145 mm / 5.7 in (linear bore; cubic-inch label was invalid) |
| Stroke | 7.2 in | 183 mm / 7.2 in (linear stroke) |
| Stroke | 7.2 in³ | 183 mm / 7.2 in (linear stroke) |
| Lift Cylinder Relief Valve Setting | 3800 lbf/in |
|
| Tank Capacity | 24 gpm | 89 L / 24 US gal (volume, not pump flow) |
| Wire Cable Diameter - Optional | 1.25 ft | 1.25 in / 32 mm |
| Maximum Drum Capacity - Recommended Cable Length | 257 in | 257 ft / 78 m (with recommended rope diameter) |
Cat D9: Configuration records
D9
| Specification | Source figure |
|---|---|
| Weights | |
| Shipping Weight | 84,373 lb |
| Hydraulic Controls | |
| Pump Type | Piston-type geared to flywheel |
| Pump Output - Steering | 96 gpm |
| Fan Pump | 21 gpm |
| Tilt Cylinder Flow - Rod End Flow | 53 gpm |
| Tilt Cylinder Flow - Head End Flow | 53 gpm |
| Lift Cylinder Relief Valve Setting |
|
| Tilt Cylinder Relief Valve Setting | 2,799 psi |
| Ripper - Lift - Relief Valve Setting | 3,800 psi |
| Ripper - Pitch - Relief Valve Setting | 3,800 psi |
| Steering System - Pressure | 5,874 psi |
| Tank Capacity | 89 L / 24 US gal (volume, not pump flow) |
| Ripper | |
| Type | Planetary powershift |
| Undercarriage | |
| Track Gauge | 88.6 in |
| 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 |
| Length - Track on Ground | 136.6 in |
| Ground Contact Area | 45.6 ft² / 4.23 m² |
| Track Rollers/Side | 8 |
| Number of Carrier Rollers | 1 per side (optional) |
| Air Conditioning System | |
| Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R1234yf (Global Warming Potential = 0.501). The system contains 1.850 kg of refrigerant, which has a CO2 equivalent of 0.001 metric tonnes |
| Standards | |
| 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 |
| Steering and Brakes | |
| Steering Type | Differential |
| Brake Type | Spring Applied Wet Disc |
| Brake Diameter | 15.5 in |
| Brake Count | 8 |
| Dimensions (Approximate) | |
| Ground Clearance* | 18.1 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 |
| 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 |
| FLUID CAPACITIES | |
| Fuel Tank (Splash Fill) | 254 gal (US) |
| DEF Tank (Tier 4 only) | 9.5 gal (US) |
| Fuel Tank (Fast Fill) | 248 gal (US) |
| Engine Crankcase* | 10 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 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 |
| Blade Semi Universal | |
| Blade Height | 76.1 in |
| Ground Clearance at Full Lift | 56 in |
| Ripper Multi Shank, Adjustable Parallelogram | |
| 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 |
| Total Operating Weight* - With SU-Blade and Ripper | 111,739 lb |
| Maximum Clearance Raised - Under Tip, Pinned in Bottom Hole — Ripper Multi Shank, Adjustable Parallelogram | 34.6 in |
| Number of Pockets — Ripper Multi Shank, Adjustable Parallelogram | 3 |
| Weight — Ripper Multi Shank, Adjustable Parallelogram | 12,136 lb |
| Winches | |
| Winch Model | PA 140VS |
| Weight* | 3,950 lb |
| Oil Capacity | 4 gal (US) |
| Wire Cable Diameter - Recommended | 1.13 in |
| Wire Cable Diameter - Optional | 1.25 in / 32 mm |
| Maximum Drum Capacity - Recommended Cable Length | 257 ft / 78 m (with recommended rope diameter) |
| 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 |
| Blade - Semi-Universal | |
| Blade Width (over end bits) — Blade - Semi-Universal | 171.3 in |
| Maximum Tilt — Blade - Semi-Universal | 37 in |
| Blade Weight — Blade - Semi-Universal | 10,587 lb |
| Ripper - Single Shank | |
| Maximum penetration force * (shank vertical) — Ripper - Single Shank | 35520 lbf |
| Maximum penetration depth (standard tip) — Ripper - Single Shank | 48.5 in |
| Pryout Force — Ripper - Single Shank | 74637 lbf |
| Maximum Clearance Raised - Under Tip, Pinned in Bottom Hole — Ripper - Single Shank | 34.7 in |
| Weight — Ripper - Single Shank | 10,701 lb |
| Blade Universal | |
| Blade Width (over end bits) — Blade Universal | 184.3 in |
| Maximum Tilt — Blade Universal | 39.9 in |
| Blade Weight — Blade Universal | 12,016 lb |
| Ripper Single Shank, Deep Ripping | |
| Maximum penetration force * (shank vertical) — Ripper Single Shank, Deep Ripping | 38667 lbf |
| Maximum penetration depth (standard tip) — Ripper Single Shank, Deep Ripping | 68 in |
| Pryout Force — Ripper Single Shank, Deep Ripping | 74412 lbf |
| Maximum Clearance Raised - Under Tip, Pinned in Bottom Hole — Ripper Single Shank, Deep Ripping | 32.2 in |
| Weight — Ripper Single Shank, Deep Ripping | 10,981 lb |
| Additional specifications | |
| Operating Weight | 110,225 lb |
| Engine Model | Cat® C18 |
| Engine Power - Net SAE J1349/ISO 9249 | 452 hp |
| Bore | 145 mm / 5.7 in (linear bore; cubic-inch label was invalid) |
| Stroke | 183 mm / 7.2 in (linear stroke) |
| Displacement | 1,106 in³ |
| Engine Power - Gross SAE J1995 | 487 hp |
| Engine Power - ISO 14396 | 479 hp |
| Emissions | US EPA Tier 2 or Tier 3 equivalent |
| 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 |
| Cooling System | 21 gal (US) |
| Powertrain | 40 gal (US) |
| Blade Capacity (SAE J1265) | 17.8 yd³ / 13.6 m³ |
| Maximum Digging Depth | 23.9 in |
| Total Operating Weight* (with blade and single-shank ripper) | 110,205 lb / 49 988 kg |
| Number of Pockets | 1 |
| Total Operating Weight* (with SU Blade and noted ripper) | 110,205 lb / 49 988 kg |
| Drum Width | 12.6 in |
More in Cat: D10, Cat D7, D11/D11 XE.