Cat D9

Large Dozers

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About the Cat D9

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.

Specifications

Engine - U.S. EPA Tier 2/3 Equivalent

Engine Model	Cat® C18
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 - U.S. EPA Tier 4 Final/EU Stage V

Engine Model	Cat® C18
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.

FLUID CAPACITIES

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
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.

Weights

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.

Hydraulic Controls

Pump Type	Piston-type geared to flywheel
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)

Undercarriage

Shoe Type	Extreme Service
Shoes/Side	43
Track Rollers/Side	8
Number of Carrier Rollers	1 per side (optional)

Steering and Brakes

Steering Type	Differential
Brake Type	Spring Applied Wet Disc
Brake Count	8

Air Conditioning System

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.

Standards

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
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 c
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.

Transmission

Type	Planetary powershift

Blade - Semi-Universal

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 - Universal

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.

Ripper - Single Shank

Number of Pockets	1
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.

Ripper - Single Shank, Deep Ripping

Number of Pockets	1
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.

Ripper - Multi-Shank, Adjustable Parallelogram

Number of Pockets	3
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.

Winches

Winch Model	PA 140VS
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.

Dimensions (Approximate)

Note (1)

*Includes grouser height for total dimensions on hard surfaces.

Features

Delivering the lowest cost of ownership

Ensure productivity in all applications
Keep operators safe, comfortable and in control
Take advantage of technology
Make them easy to maintain and repair
Make them last

THE RIGHT DOZER FOR YOUR APPLICATION

Elevated sprocket and suspended undercarriage work together:

Increases traction, giving the operator a smooth ride in all conditions
Makes component removal easy for quick repair times
Elevated sprocket transfers implement shock loads to mainframe, isolating final drives, axles and steering components from harsh impact

Optimize your dozing operation

Torque converter with stator clutch—high efficiency, less fuel
Bogie suspension—less slippage, more production
Differential steering—large loads, fast and smooth maneuvering

Safety-infused

Vision 360 (optional)
Flashing orange beacon and LED lighting (optional)
Improved cab access with forward-hinging cab door (optional)
Secondary engine shutoff
Continuous fluid level monitoring
Secondary retention on hinged belly guards
Improved cab with new seat and high-definition touchscreen monitor
Powered access ladder (optional)
Notched fuel tank and narrow ripper carriage for clear line of sight
Fire suppression- ready – bottle mounting bracket (optional)

Operator Environment

Enhanced ergonomics (throttle control, one screen instead of multiple, optional ladder)
Fully adjustable air suspension seat (heated/cooled)
Low-effort electronic transmission, steering, ripper and dozer controls
Automatic temperature control

Innovation

Seamless integration with optional machine control and guidance systems:

Automatic Blade Assist (ABA)
AutoCarry
Automatic Ripper Control
Grade Control 3D

CAT BLADES & ATTACHMENTS

Aggressive in tough materials
Superior loadability
Ability to resist torsional bending and distortion
Increased wear resistance and dozing effectiveness— without sacrificing machine balance or performance

Duralink™ undercarriage

20-40% longer undercarriage life and 8000-hour seal life with new, heavy-duty extended-life (HDXL) undercarriage

Cat® MineStar™ System

Multiple levels of remote-control operation

Over-the-shoulder remote-control console
Remote operator station

Gives operators full control of the dozer without being exposed to dust, noise, vibration or other hazards

Reduce your downtime

Remote software flashing
Much larger radiator access cover for improved core cleaning
Fewer greasing points
High-speed oil change system
Duralink link assembly with 8000-hour seal life
6% larger fuel tank
Standard ground-level fluid and lighting access
Cat Autolube System with automatic shutoff
Continuous fluid level monitoring

SUPPORT

Your Cat dealer knows how to keep your machines moving. We've built an extensive network of nearly 200 locally owned businesses in over 200 countries. So wherever you operate, there is a dealer nearby to provide world-class service and support for your Cat equipment.