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Engineered for demanding work. The D9R’s durable construction is made for tough working conditions. It keeps material moving with the reliability and low operating costs you expect from Cat® tractors.


Engine ModelCat® 3408C

Flywheel Power302.0 kW

Gross Power330.0 kW




Delivers excellent reliability and durability for years of service.


advanced modular cooling ...

Superior cooling in the most demanding work conditions.



Delivers the performance you expect from a Cat® machine.



Engine ModelCat® 3408C

Flywheel Power302.0 kW

Gross Power330.0 kW

Net Power - EU 80/1269302.0 kW

Bore137.0 mm

Stroke152.0 mm

Displacement18.0 L

Net Power - SAE J1349/ISO 9249302.0 kW


Operating Weight48784.0 kg

Shipping Weight36154.0 kg


Shoe TypeExtreme Service

Width of Shoe610.0 mm


Grouser Height84.0 mm

Pitch240.0 mm

Ground Clearance591.0 mm

Track Gauge2250.0 mm

Length of Track on Ground3474.0 mm

Ground Contact Area4.24 m2

Track Rollers/Side8


1 Forward3.9 km/h

2 Forward6.8 km/h

3 Forward11.9 km/h

1 Reverse4.8 km/h

2 Reverse8.4 km/h

3 Reverse14.7 km/h

1 Forward - Drawbar Pull (1000)725.0 N

2 Forward - Drawbar Pull (1000)400.0 N

3 Forward - Drawbar Pull (1000)218.0 N

service refill capacities

Fuel Tank889.0 L

Cooling System125.0 L

Engine Crankcase*45.5 L

Power Train164.0 L

Final Drives (each)15.0 L

Roller Frames (each)45.0 L

Pivot Shaft Compartment30.0 L

Hydraulic Tank77.2 L

hydraulic controls

Pump TypePiston-type geared from flywheel

Pump Output (Implement)239.0 L/min

Tilt Cylinder Rod End Flow137.0 L/min

Tilt Cylinder Head End Flow167.0 L/min

Bulldozer Relief Valve Setting26200.0 kPa

Tilt Cylinder Relief Valve Setting19300.0 kPa

Ripper (Lift) Relief Valve Setting26200.0 kPa

Ripper (Pitch) Relief Valve Setting26200.0 kPa


Winch ModelPA140VS

Weight*1790.0 kg

Oil Capacity15.0 L

Increased Tractor Length559.0 mm

Winch Case Width1171.0 mm

Drum Width337.0 mm

Flange Diameter610.0 mm



Capacity (SAE J1265)13.5 m3

Width (over end bits)4310.0 mm

Height1934.0 mm

Digging Depth606.0 mm

Ground Clearance1422.0 mm

Maximum Tilt940.0 mm

Weight* (without hydraulic controls)6543.0 kg

Total Operating Weight** (with Blade and Single-Shank Ripper)48784.0 kg


Capacity (SAE J1265)16.4 m3

Width (over end bits)4650.0 mm

Height1934.0 mm

Digging Depth606.0 mm

Ground Clearance1422.0 mm

Maximum Tilt1014.0 mm

Weight* (without hydraulic controls)7134.0 kg

Total Operating Weight** (with Blade and Single-Shank Ripper)49392.0 kg


Maximum Penetration Force** (shank vertical)147.9 kN

Maximum Penetration Force** (shank vertical)153.8 kN

Total Operating Weight* (with SU-Blade and Ripper)49479.0 kg

TypeSingle-Shank, Adjustable Parallelogram

Added Length1570.0 mm

Number of Pockets1

Maximum Clearance Raised (under tip, pinned in bottom hole)882.0 mm

Maximum Penetration (standard tip)1231.0 mm

Pry out Force320.5 kN

Weight (without hydraulic controls)4854.0 kg

Total Operating Weight* (with SU-Blade and Ripper)48784.0 kg

TypeMulti-Shank, Adjustable Parallelogram

Number of Pockets3

Added Length1330.0 mm

Overall Beam Width2640.0 mm

Maximum Clearance Raised (under tip, pinned in bottom hole)885.0 mm

Maximum Penetration (standard tip)798.0 mm

Pry out Force (Multi-Shank Ripper with one tooth)324.6 kN

Weight (one shank, without hydraulic controls)5449.0 kg

Additional Shank340.0 kg




Delivers excellent reliability and durability for years of service.



Superior cooling in the most demanding work conditions.



Delivers the performance you expect from a Cat® machine.



Provides optimum operator efficiency and driveline reliability.



Designed for comfort and ease of operation.



Engineered for maximum production and service life.



Designed for better machine balance and component life.



Work Tools provide the flexibility to match the machine to the job.



The most serviceable machines from the most committed dealers.



The Cat dealer network keeps your fleet up and running.



  • electrical
    Alternator, 75 amp
    Back-up alarm
    Batteries, 12-volt (2), 190 amp-hour
    Horn, forward warning
    Lighting system, halogen (2 forward, 2 rear)
    Starting Receptacle
  • operator environment
    Canopy, ROPS/FOPS
    Cat D9R Monitoring System
    Decelerator and governor control
    Hydraulic control lever restraints
    Hydraulic system, four valve
    Mirror, rearview
    Seat, vinyl suspension
    Seat belt, retractable 76 mm (3 in)
  • undercarriage
    610 mm (24 in) extreme service grouser with sealed and lubricated PPR track (43 section)
    Lifetime lubricated rollers and idlers
    Pinned equalizer bar
    Sprocket rim segments, replaceable
    Suspension-type undercarriage, eight-roller tubular track roller frame
    Track adjusters, hydraulic
    Track guides
    Two-piece master links
  • power train
    3408C DITA diesel engine
    Advanced Modular Cooling System (AMOCS)
    Blower fan
    Clutch-brake with combined steering and brake control levers
    Coolant, extended life
    Drains, ecology fluid
    Ether starting aid
    Final drives, 3 planet double reduction planetary
    Fuel priming pump
    Power shift transmission (3F/3R)
    Precleaner with dust ejector
    Separator, water/fuel
    Thermal shield
    Torque divider
  • other standard equipment
    CD ROM parts book
    Engine enclosure
    Guards - Bottom, hinged extreme service with front towing device
    Load sensing hydraulics
    Mounting, lift cylinders
    Radiator, hinged
    Rain cap
    Service instructions, international
    Vandalism protection (8 caplocks)


    • electrical
      Alternator, 100 amp
      Converter, 24-volt to 12-volt
      Lights, supplemental (3 variations)
    • guards
      Dozer lines
      Final drive seals
      Fuel tank
      Pivot shaft seals
    • operator environment
      Air conditioner (2 variations)
      Glass, dual pane with fan defroster
      Seat, air suspension
    • power train
      Fast fuel system
      Fast oil change system
      Grid, radiator core protector
      Precleaner, turbine
      Prelub engine
    • undercarriage
      Tracks, sealed and lubricated
      560 mm (22 in) PPR Extreme Service
      685 mm (27 in) PPR Extreme Service
      760 mm (30 in) PPR Extreme Service
      Carrier Rollers
    • special arrangements
      Arctic package
      Cold weather package
      DCA 1 Heavy Construction Lane 1
      DCA 2 Arctic Lane 1
      Desert arrangement
      Steel mill arrangement
    • bulldozer arrangements
      9SU abrasion resistant blade
      9U abrasion resistant blade
    • hydraulic controls
      Dual tilt
    • rippers
      Single shank
      Multi shank
      Pin puller (single shank only)
      Push block (single shank only)
      Ripper shank (multiple variations)
    • other attachments
      Counterweights (rear and additional)
      Drawbar, rigid
      Heater, Espar coolant
      Low temperature start (includes two additional batteries)
      Omission, engine enclosure
      Paint, black hood and cylinders
      Winch (with counterweight)


Delivers excellent reliability and durability for years of service.


3408C DITA Engine The 3408C engine is a field proven engine that delivers excellent reliability and durability in all applications.

High Torque Rise The 18 liter engine delivers a high torque rise, providing excellent lugging capacity to move heavier loads more efficiently.

Simplicity The mechanically controlled engine provides ease of diagnostics in remote areas where diagnostic tools may not be available.

Durability Designed to be rebuilt over and over. Tolerant of many different levels of fuel and oil quality.

High Tensile Strength Block The 3408C block is cast from high-tensile-strength gray iron. The one piece casting is stabilized to maintain internal dimensions under all operating conditions.

Four Valve Cylinder Heads The engine uses two intake and two exhaust valves with hardened valve faces that are designed to be reground. Rotators turn the valves about three degrees each lift to distribute wear and maintain heat transfer. Valve stems are made from hardened, chrome plated steel to provide excellent wear and heat resistance.

Cooling An internal top-deck cooling shelf increases coolant flow to the top of the cylinders for long cylinder liner and piston life. The deep-skirted lower structure and heavy internal ribbing add strength and rigidity to the block.

Carbon Steel Forged Crankshaft The crankshaft is a carbon steel forging, fully heat-treated, super-finished and dynamically balanced.


Superior cooling in the most demanding work conditions.


Two Pass Cooling System Circulates coolant from the sectioned bottom tank up through one side of the cooling element and down through the other side returning it to the bottom tank.

Modular Design The cooling elements are individual core modules that are connected to a sectioned bottom tank. There is no top tank to remove.

  • With standard 9 steel fins per inch, a lower fin density reduces plugging.
  • Brass tube construction within each core for improved reliability.
  • Optional core configurations are available for high ambient and/or high wear applications.

Easy Serviceability Servicing of the AMOCS can be performed without tilting the radiator guard. Each core module can be replaced individually (without removing the entire radiator), saving considerable cost and repair time.

Protection From Leaks To reduce the potential for coolant leaks, brass tubes are welded to a large, thick header, improving strength of the tube-to-header joint. In conditions where abrasive materials can be airborne, the attachment sand blast grid should be used to prevent core damage.

Advanced Modular Cooling System

Delivers the performance you expect from a Cat® machine.


Transmission The proven Cat planetary power shift transmission operates with three speeds forward and three speeds reverse. With this design, many gears share the load as it gets transferred to the axles. In contrast, with a countershaft transmission, just one gear carries the load.

Single Lever Control One lever controls both machine speed and direction, easing operator fatigue in demanding applications.

Bevel Gear Design Helical and spiral bevel transfer gears reduce operator and spectator sound levels by design as well as location, being placed within the rear case of the machine.

Oil Cooled Clutch Packs The transmission features large oil-cooled clutch packs that efficiently absorb the energy of directional shifts for smooth machine performance and excellent operator comfort. Proprietary F37 clutch material extends clutch life, especially in applications where extensive maneuvering is used to maintain peak machine productivity. This material also minimizes transmission oil contamination compared to materials used in other manufacturers’ transmissions.

Separate Transmission Oil Reservoir The transmission oil sump is separate from both final drive reservoirs, controlling cross contamination in the event of a failure of either system. This allows the use of modular components to maximize uptime over the life of the tractor.

Clutch/Brake Steering With clutch/brake steering, hand levers combine steering clutch disengagement and braking for each track.

Serviceability In terms of serviceability, the planetary transmission provides significant advantages. The modular design simplifies removal and installation. Since the bevel gears and pinions are manufactured to such a high degree of accuracy, they do not need to be lapped and mated into sets, reducing repair costs.


Provides optimum operator efficiency and driveline reliability.


Torque Divider Performance An improved single-stage torque converter sends 75% of engine torque through a converter and 25% through a direct drive shaft for greater driveline efficiency and higher torque multiplication. The torque divider provides improved efficiency and a broader range of performance in second gear dozing and scraper push loading.

Operating Efficiency and Driveline Reliability The torque divider shields the driveline from sudden torque shocks and vibration.

Freewheel Stator Improves torque divider efficiency. During machine operation under low drawbar loads, the stator is permitted to rotate to achieve peak efficiency. The result is a reduction in heat and an increase in fuel efficiency.

Key Benefits of Torque Dividers

  • High reliability.
  • Proven component design.
  • Low dynamic torque.
  • Optimum combination of operator efficiency and driveline reliability.
  • Components are designed to absorb full engine power.
  • High torque multiplication to get heavy loads moving.

Additional Feedback A minor, but important, by-product of the torque divider is its tendency to increase engine lug all the way to converter stall. This gives the operator additional feedback concerning tractor speed and drawbar pull.

Torque Divider

Designed for comfort and ease of operation.


Monitoring System Provides the operator instant feedback on the condition of operating systems and records performance data to help diagnose problems. Gauges monitor the temperature of the engine coolant, hydraulic oil, power train oil, and fuel level. Includes alert indicators that monitor engine oil pressure, coolant flow, electrical system and transmission oil filter.

Comfortable Operation An optional isolation-mounted cab reduces noise and vibration. The Cat Comfort Series Seat is fully adjustable and designed for comfort and support. The seat and back cushions are thicker to reduce pressure on the lower back and thighs while allowing unrestricted arm and leg movement.

Clear Full-Circle View A tapered hood and “notched” fuel tank give the operator a clear line of sight to the front and rear work areas. The low rear window lets the operator see the ripper tip. The large single-pane door windows allow clear sight to each side without leaning.

Interior Storage and Amenities Includes intermittent windshield wipers, 12-volt power outlet, first aid kit storage, inside door releases, lunch box tie-downs, cup holder, console pads, standard 24 to 12 volt converter, speakers and antenna.

Isolation-Mounted Operators Platform The D9R features an isolation-mounted operators platform with standard ROPS/FOPS.

Operator Station

Engineered for maximum production and service life.


Mainframe The D9R mainframe is built to absorb high impact shock loads and twisting forces.

Heavy Steel Castings Heavy steel castings give added strength to the main case, equalizer bar saddle, front cross member and tag-link trunnion.

Frame Rails Full box section, designed to keep components rigidly aligned.

Top and Bottom Rails Continuous rolled sections with no machining or welding providing superior mainframe durability.

Main Case Elevates the final drives well above the ground level work area to protect them from impact loads, abrasion and contaminants.

Pivot Shaft and Pinned Equalizer Bar Maintain track roller frame alignment.


Designed for better machine balance and component life.


Suspended Undercarriage Design Absorbs impact loads to reduce the shock loads transferred to the undercarriage by up to 50%.

Bogie Suspension Provides more ground contact, especially in hard, uneven terrain. Higher traction means less slippage, better balance, and a smoother ride.

Rollers and Idlers Feature symmetric Duo-Cone™ seals. Idler caps have an additional third bolt in the abutment-style joint.

Roller Frames Tubular design resists bending and twisting and includes added reinforcement where operating loads are the highest. Alignment is optimized for undercarriage wear, and increased track frame adjustment length provides more wear material for use, extending link and roller wear life.

Elevated Sprocket Transfers implement shock loads to the mainframe and allows the sprockets, final drives, axles and steering components to perform without absorbing excessive punishment. This allows Cat tractors to work harder and last longer than competitors’ machines. The sprocket segment design increases the life of both the segment and track bushing.

Traction The elevated sprocket allows more track to the rear of the roller frame, increasing traction and flotation and counteracting front-end rise during heavy dozing and drawbar applications. With more track on the ground, the D9R delivers exceptional balance, stability, and traction for excellent dozer penetration and productive ripping.

Positive Pin Retention (PPR) Sealed and Lubricated Track Designed for high-impact and high load applications. The PPR exclusive Caterpillar design locks the link to the pin reducing the opportunity for premature loss of lubrication. Sealed design permanently coats the track pin with lubricant, minimizing metal-to-metal contact and virtually eliminating internal pin and bushing wear.

Other Features

  • Large pivot shaft bushings operate in an oil reservoir.
  • A low friction, no maintenance bushing is used in the saddle connection.
  • Resilient pads restrain equalizer bar oscillation.
  • Idler Guards (optional), increase undercarriage life.

Work Tools provide the flexibility to match the machine to the job.


Bulldozers Blades are made of Cat DH-2™ steel with high tensile strength and stands up to the most severe applications. Heavy moldboard construction and bolt-on cutting edges and end bits add strength and durability.

  • Universal Blade - Efficient at moving big loads over long distances.
  • Semi-Universal Blade - Built for tough applications in tightly packed material where penetration is important.
  • Optional Dual Tilt - Allows the operator to optimize the blade pitch angle for each portion of the dozing cycle.
  • Cutting Edges and End Bits - Cutting edges are DH-2™ steel. End bits are DH-3™ to provide maximum service life in tough materials.


  • Multi-Shank Ripper - Tailors the tractor to the material by using one, two or three shanks.
  • Single-Shank Ripper - Operator can adjust the shank depth from the seat using an optional single shank pin puller. Large one-piece shank, available in deep rip configuration.

Single Lever Control A single lever controls all blade movements, including the optional dual tilt.

Tag-Link Tag-Link construction brings the blade closer to the machine for more precise dozing and load control. The tag-link design provides solid lateral stability and better cylinder positions for constant pryout independent of blade height.

Heel Clearance Works well in hard-to-penetrate material because of excellent heel clearance.

Ground Engaging Tools (GET) A large range of Ground Engaging Tools are offered.

Hydraulics Automatically adjusts work tool hydraulic power to maximize machine efficiency.

Work Tools

The most serviceable machines from the most committed dealers.


Built-In Servicing Ease Major components are made as modules and can be removed without disturbing or removing others.

Spin-On Filters Spin-on fuel and engine oil filters save changing time. Further time is saved with fast fuel and quick oil change attachments.

Electrical Connectors To improve electrical system reliability and servicing, sealed electrical connectors are used in most locations. The harness connectors lock out dust and moisture better than “bullet” or “metal twist” connectors.

Ecology Drains Provide an environmentally safer method to drain fluids. Included on the radiator, hydraulic tank and major power train components.

Easier Maintenance and Repair Experience easier maintenance and repair through monitoring key functions and logging critical indicators. Electronic diagnostic access is possible with a single tool, the Electronic Technician (Cat ET).

Quick Disconnect Fittings Allow for fast diagnosis of the power train and implement oil systems.

Fuel Tank Increased fuel tank capacity for a full, non-stop shift between refills. Fast fuel attachment with positive fuel shut-off to prevent fuel spillage.


The Cat dealer network keeps your fleet up and running.


Dealer Commitment Dealers committed to fast, quality customer support. Your Cat dealer’s investment in service begins with the fastest and most complete parts availability in the industry.

Financing Your dealer is also an expert at arranging affordable lease, rental or purchase financing for all Caterpillar products. Consider the financing options available as well as the day-to-day operating costs.

Machine Selection Make detailed comparisons of the machines you are considering before you buy. How long do components last? What is the cost of preventive maintenance? What is the true cost of lost production? Your Cat dealer can give you answers to these questions.

Replacement Repair, rebuild, or replace? Your Cat dealer can help evaluate the cost involved so you can make the right choice.

Product Support Plan for effective maintenance before buying equipment. Choose from your dealer’s wide range of maintenance services at the time you purchase your machine. Programs such as Custom Track Service (CTS), S•O•SSM analysis, Technical Analysis and guaranteed maintenance contracts give peak life and performance to your machine.

Parts Program You will find nearly all parts at your dealer parts counter. Cat dealers use a world-wide computer network to find in-stock parts to minimize machine down time. Ask about your Cat dealer’s exchange program for major components. This can shorten repair time and lower costs.

Remanufactured Components Save money with remanufactured parts. You receive the same warranty and reliability as new products at a cost savings of 40 to 70 percent.

Customer Support