D6N Track-Type Tractor

D6N Track-Type Tractor

360° Exterior View

The latest in the line of Cat D6N dozers combines well-known versatility with a range of technology features to give you more job site productivity than ever before. ...


Engine Model
Cat® C7.1 ACERT™
Flywheel Power
Note (2)
No derating required up to 3000 m (9,840 ft) altitude, beyond 3000 m (9,840 ft) automatic derating occurs.
Note (1)
Net power advertised is the power available at the engine flywheel when the engine is equipped with the air cleaner, muffler, alternator, cooling fan at maximum speed.
U.S. EPA Tier 4 Final/EU Stage IV/Korea Tier 4 Final
Engine Power - Maximum - At 2,200 rpm - SAE J1995
Engine Power - Maximum - At 2,200 rpm - ISO 14396
Engine Power - Maximum - At 2,200 rpm - ISO 14396 (DIN)
Net Power - 1,800 rpm - ISO 9249/SAE J1349
Net Power - 1,800 rpm - ISO 9249/SAE J1349 (DIN)
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.
Note (3)
All non-road Tier 4 Interim and Final, Stage IIIB and IV, and Korea Tier 4 Final diesel engines are required to use only Ultra Low Sulfur Diesel (ULSD) fuels containing 15 ppm EPA/10 ppm EU (mg/kg) sulfur or less. Biodiesel blends up to B20 (20% blend by


Operating Weight
Shipping Weight - LGP
Operating Weight - XL
Operating Weight - LGP
LGP VPAT - Blade
LGP VPAT - Foldable
LGP VPAT - Landfill
Multi-Shank Ripper - With 3 Shanks
XL SU - Blade
XL VPAT Foldable
XL VPAT Landfill
Shipping Weight - XL
Operating Weight - XL Waste Handler
Operating Weight - LGP Waste Handler
Shipping Weight - XL Waste Handler
Shipping Weight - LGP Waste Handler
Shipping Weight - XL Fine Grading
Operating Weight - XL Fine Grading
Note (2)
Shipping Weight: Includes EROPS, A/C, lights, VPAT dozer, transmission, drawbar, engine enclosure, 3-valve hydraulics, 5% fuel, and Cat Comfort Series Air Suspension Seat.
Note (1)
Operating Weight: Includes EROPS, A/C, lights, VPAT dozer, transmission, drawbar, engine enclosure, 3-valve hydraulics, 100% fuel, and Cat Comfort Series Air Suspension Seat and operator.


1.0 Forward
1.5 Forward
2.0 Forward
2.5 Forward
3.0 Forward
1.0 Reverse
1.5 Reverse
2.0 Reverse
2.5 Reverse
3.0 Reverse
2.7 Forward
1.7 Forward
1.0 Forward (EU)
0.5 Reverse
0.7 Forward
0.5 Forward
0.5 Forward (EU)
0.7 Forward (EU)
0.5 Reverse (EU)
0.7 Reverse (EU)
1.0 Reverse (EU)
Maximum Drawbar Pull - 1.0 Forward
Maximum Drawbar Pull - 2.0 Forward
Maximum Drawbar Pull - 3.0 Forward
1.7 Reverse
2.7 Reverse
0.7 Reverse

Service Refill Capacities

Fuel Tank
73.2gal (US)
Cooling System
10.6gal (US)
Engine Crankcase
4.5gal (US)
Power Train
42.3gal (US)
Final Drive - Each
1.8gal (US)
Hydraulic Tank
7.8gal (US)
Roller Frames XL/LGP - Each
20/17.5 L (4.3/4.6 gal)
DEF Tank
5gal (US)

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 1.6 kg of refrigerant which has a CO2 equivalent of 2.288 metric tonnes.


ROPS (Rollover Protective Structure) offered by Caterpillar for the machine meets ROPS criteria ISO 3471:2008.
FOPS (Falling Object Protective Structure) meets ISO 3449-2005 Level II.
Brakes meet the standard ISO 10265:2008.


Winch Drive
Winch Case - Width
Rope Diameter - Recommended
Overall Width
Maximum Full Drum - Line Speed
Maximum Bare Drum - Line Speed
Cable Ferrule Size - O.D. × Length
54 mm × 67 mm (2.13 in × 2.63 in)
Maximum Bare Drum - Line Pull*
Maximum Full Drum - Line Pull*
Winch Model
Note (1)
*Weight: Includes pump, operator controls, oil, mounting brackets and spacers.
Drum Capacity - 22 mm (0.88 in)
Note (2)
Slow and standard speed winches are available.
Oil Capacity
19.55gal (US)
Winch and Bracket Length
Drum Diameter
Drum Width
Flange Diameter


Weight - With Three Shanks
Shank Section
73 mm × 176 mm (2.9 in × 6.9 in)
Shank Gauge
Pocket Spacing
Each Additional Shank
Maximum Clearance Raised - Shank Tip
Maximum Penetration Force - LGP
Maximum Penetration Force - XL
Maximum Pry-out Force - LGP
Maximum Pry-out Force - XL
Maximum Penetration - XL
Maximum Penetration - LGP
Fixed Parallelogram
Number of Pockets
Overall Beam Width
Beam Cross Section
216 mm × 254 mm (8.5 in × 10.0 in)


Track Gauge - XL
Track Gauge - LGP
Shoe Width - XL
Shoe Width - LGP
Note (1)
*ISO 16754
Shoes/Side - XL
Shoes/Side - LGP
Track on Ground - XL
Track on Ground - LGP
Ground Contact Area* - XL
Ground Contact Area* - LGP
Track Rollers/Side - XL
Track Rollers/Side - LGP
Ground Pressure - XL*
Ground Pressure - LGP*
Grouser Height - XL
Grouser Height - LGP
Shoe Width - XL - Fine Grading
Shoes/Side - XL - Fine Grading
Grouser Height - XL - Fine Grading
Track Gauge - XL - Fine Grading
Track on Ground - XL - Fine Grading
Ground Contact Area* - XL - Fine Grading
Ground Pressure* - XL - Fine Grading
Track Rollers/Side - XL - Fine Grading
Note (2)
All dimensions with SystemOne undercarriage.


Capacity - LGP VPAT
Width - LGP VPAT - Foldable
Capacity - XL SU
Width - XL SU
Capacity - XL VPAT
Width - XL VPAT
Capacity - LGP VPAT - Foldable
Width - LGP VPAT

Sustainability - Sound and Vibration Levels

*Values are for an experienced operator in a dozing application, consult the Operating and Maintenance Manual for details.
Sound Levels - Average Exterior Sound Pressure Level - SAE J88:2006
Sound Levels - Maximum Sound Power Level - 2000/14/EC
Sound Levels - Dynamic Operator Sound Pressure Level (LpA) - ISO 6396:2008
Vibration Levels - Maximum Hand/Arm* - ISO 5349:2001
2.5 m/s2 (8.2 ft/s2)
Vibration Levels - Maximum Whole Body* - ISO/TR25398:2006
0.5 m/s2 (1.6 ft/s2)
Vibration Levels - Seat Transmissibility Factor - ISO 7096:2000 - Spectral Class EM6
Less Than 0.7

Hydraulic Controls - Pressures

Maximum Implement Operating Pressure
Maximum Steering Operating Pressure

Sound and Vibration - Cab

Sound Level Information (1)
The operator Equivalent Sound Pressure Level (Leq) is 81.5 dB(A) when “ANSI/SAE J1166 FEB2008” is used to measure the value for an enclosed cab. The measurement was conducted at 100% of the maximum engine cooling fan speed. This is a work cycle sound expo
Sound Level Information (2)
Hearing protection may be needed when the machine is operated with an open operator station for extended periods or in a noisy environment. Hearing protection may be needed when the machine is operated with a cab that is not properly maintained, or when t
Sound Level Information (3)
The average exterior sound pressure level is 85.5 dB(A) when the “SAE J88 FEB2006 – Constant Speed Moving Test” procedure is used to measure the value for the standard machine. The measurement was conducted under the following conditions: distance of 15 m
Sound Level Information for Machines in European Union Countries and in Countries that Adopt the “EU Directives.” The information below applies to only the machine configurations that have the “CE” mark on the Product Identification Plate. (1)
The declared dynamic operator sound pressure level is 76 dB(A) when “ISO 6396:2008” is used to measure the value for an enclosed cab. The measurement was conducted at 70% of the maximum engine cooling fan speed. The sound level may vary at different engin
Sound Level Information for Machines in European Union Countries and in Countries that Adopt the “EU Directives.” The information below applies to only the machine configurations that have the “CE” mark on the Product Identification Plate. (2)
If equipped, the certification label – 110 dB(A) – is used to verify the environmental sound certification of the machine to the requirements of the European Union. The value that is listed on the label indicates the guaranteed exterior sound power level

Hydraulic Controls - Pump

Tilt Cylinder Flow
Ripper Cylinder Flow
Pump Output - Steering
Pump Output - Implement
Lift Cylinder Flow
Angle Cylinder Flow - VPAT

Operator Environment

Roomier cab with a wider entry offers added comforts like a heated/ventilated seat option, manually adjustable armrests, larger cup holder and auxiliary power port. Smoother shifting and a quieter engine add to overall operator comfort. Modified cab seals and ducts help improve heating and air conditioning performance, and a redesigned cab/fresh air filter helps keep the cab cleaner. A color LCD display shows vital operating information, as well as Slope Indicate real-time machine mainfall and cross slope. A grade control display can be integrated right into the dash so data is available at a glance.

Implement and Steering Controls
  • Machine direction, forward/reverse shifting and gear selection are all combined into a single tiller control located on the left armrest.
  • Standard Electro-hydraulic controls are designed for low effort. Operators have precise control of the blade and rear attachments, as well as the functions of a 6-way VPAT blade.
  • A variable throttle control dial lets you use preset engine speeds, or select Enhanced Auto Shift modes.
  • Bi-directional shift allows you to automatically select the desired forward/reverse speeds or a custom setting.
  • Selectable Electro-Hydraulic Maps set the implement response levels – fine, medium, coarse – to match operator preferences and tailor the machine to individual applications.
  • Implement Lock-Out prevents inadvertent operation of hydraulic attachments.

Power and Performance


A Cat C7.1 ACERT engine gives you the power and reliability you need. Improved fuel economy over the previous model and efficient use of Diesel Exhaust Fluid (DEF) gives you excellent overall fluid efficiency.

Cooling System

A single plane design makes cleanout easier, and durable aluminum bar plate construction gives you superior heat transfer and corrosion resistance. A swing-out door provides easy access for cleanout.

In cooler conditions, an improved variable speed demand fan slows down to conserve power, save fuel and reduce sound levels.

An optional manually reversing fan is available for high debris conditions, and an optional sand blast grid can help protect the radiator from abrasive materials and debris.

Lock-Up Clutch

Transmission controls will automatically select the drive mode best suited to your application, providing increased productivity and efficiency.* The new transmission with a lock-up clutch torque converter gives you the performance of direct drive with the ease of operation of power shift.

Enhanced Auto Shift

Standard Enhanced Auto Shift helps you save fuel by automatically upshifting/downshifting to maintain the most efficient gear based on load. Three different settings – 3-speed, 6-speed and fine adjustment mode – allow you to optimize tractor performance to match material and job site conditions.

Differential Steering

Differential Steering maintains full power to both tracks for best-in-class turning, even with a full blade load. When one track speeds up, the other slows down an equal amount, so you have better maneuverability and faster cycle times. Load capacity, power and speed control are also better when working in soft conditions.

Load Sensing Hydraulics

Field-proven system senses the load and continuously adjusts hydraulic power to your blade to maximize efficiency.

*Compared to the previous D6N model.

Equipped for the Job


Elevated sprocket helps protect major components from harsh impacts and provides a modular design for convenient service.

Choose Heavy Duty undercarriage for aggressive applications like land clearing, side-slopes or rocky terrain. Or, choose SystemOne™ undercarriage that is designed to work and wear as a system for longer life and lower costs in abrasive or low/moderate impact applications. A broad choice of track shoe designs and widths help you further optimize your machine for performance and longer life.


Semi-Universal and Straight blades are designed with a strong box section to stand up to the most severe applications. Heavy moldboard construction, hardened bolt-on cutting edges and end bits add strength and durability.

The Variable Pitch Angle Tilt (VPAT) blade allows you to hydraulically adjust lift, angle and tilt for precise results. The VPAT blade is wider to take on a variety of applications so you can use your D6N for spreading material, finish grading, side casting, V-ditching and backfilling. An optional folding VPAT blade is available to reduce overall machine width to more easily meet transport requirements.

Rear Implements

To help you match your D6N to the task at hand, you can outfit your D6N with a multi-shank ripper, winch or drawbar.

Ask your Cat dealer for available options to help you optimize your machine for the work you do.

Cat Connect Technologies

Cat Connect makes smart use of technology and services to improve your job site efficiency. Using the data from technology equipped machines, you'll get more information and insight into your equipment and operations than ever before.

Cat Connect services are also available from your dealership including:

Equipment Management – increase uptime and reduce operating costs.

Productivity – monitor production and manage job site efficiency.

Safety – enhance job site awareness to keep your people and equipment safe.

LINK Technologies

LINK technologies provide wireless capability to machines enabling two-way transfer of information collected by on-board sensors, control modules, and other Cat Connect technologies using off-board apps, such as our VisionLink® software.

Product Link™/VisionLink

Product Link takes the guesswork out of equipment management. Track location, hours, fuel usage, productivity, idle time, and diagnostic codes through the online VisionLink interface. Manage your fleet in real time so you can maximize efficiency, improve productivity, and lower operating costs.

GRADE for Dozers

Cat Connect GRADE technologies help you hit target grade faster and more accurately. Finish jobs in fewer passes, and with less operator effort, saving you time and helping you increase profit.

Cat GRADE with Slope Assist (S) helps operators by automatically maintaining pre-established blade position. The system saves time, increases finish quality and reduces operator input. Experienced operators can work more productively and less experienced operators can achieve better quality results more quickly.

Cat Slope Indicate (S) displays machine cross-slope and fore/aft orientation on the primary monitor, helping operators work more accurately on slopes.

Cat Stable Blade (S) complements the operator's blade-control input for attaining finish grades quicker with less effort.

Cat GRADE with 3D (O) is a factory integrated grade control system that enables operators to improve grading efficiency, accuracy, and productivity in both production dozing and fine-grading applications. The integrated design positions antennas on the cab roof, eliminating conventional blade-mounted masts and related cables. The AccuGrade Ready Option (ARO) is part of the package for added versatility, and AutoCarry™ is included to further boost productivity.

Cat AccuGrade (O) is a dealer-installed aftermarket grade-control system that provides increased grading versatility and the ability to scale capacity to changing needs, providing a choice of lasers for 2D flat-plane and slope work, Global Navigation Satellite System (GNSS) control for complex 3D cuts and contours, and/or systems using a Universal Total Station (UTS) for fine and finish grading.

AccuGrade Ready Option (ARO) (O) allows you to easily install or upgrade to AccuGrade 2D and 3D grade-control systems to add versatility and resale value to your machine.

(S) = Standard

(O) = Optional

Emissions Technology

Emissions reduction technology on the D6N is designed to be transparent, with no action required from the operator. Low temperature regeneration runs automatically in the background while you work.

Aftertreatment Technologies

To meet the additional 80 percent reduction in NOx emissions required by Tier 4 Final/Stage IV emission standards, Caterpillar engineers added Selective Catalytic Reduction (SCR) to the already proven aftertreatment solution.

Diesel Exhaust Fluid

Selective Catalytic Reduction utilizes Diesel Exhaust Fluid (DEF), which can be conveniently refilled when you refuel. The DEF fill nozzle is located next to the fuel tank, with easy access via a rear step. A tone will sound (with key on), when the tank is nearly full and a gauge on the dash shows your fluid level. The system is designed to use one tank of DEF for each tank of fuel (1:1 DEF fill ratio). The D6N typically has used DEF at a rate of 2-3 percent of fuel consumption.

When the machine is turned off, a pump will automatically purge the DEF lines to help prevent freezing. A symbol on the dash and a light/symbol on the Ground Level Service Center indicate when the purge is complete and that it is safe to turn off the electrical disconnect. If the engine/aftertreatment temperatures are high, a Delayed Engine Shutdown will activate automatically to cool the machine and then purge the lines. For complete aftertreatment information, please refer to your machine's Operation and Maintenance Manual.



  • Optional rear vision camera enhances visibility behind the machine and is integrated into dash display.*

  • Added grab handles on the door help you get on and off the tractor with greater ease.

  • Well-appointed cab with good visibility helps operators stay focused and aware.

  • A standard Operator Presence detection system allows the machine to idle when the operator is not seated, but locks out the power train and front and rear implements to avoid unintentional movement.

  • New seat belt indicator enhances safety by reminding the operator to buckle up with a light/alarm. Once the machine is in gear, a fault code will register through Product Link if the operator fails to fasten the seat belt.

*Please consult your Cat dealer for availability.


  • Fuel efficiency is improved by 10-15% compared to the previous model.
  • Fuel savings reduces CO2 production by an average of approximately 2.6 metric tonnes per year.
  • Meets Tier 4 Final/Stage IV emission standards.
  • Typical Diesel Exhaust Fluid (DEF) use of 2-3 percent of fuel consumption gives you excellent overall fluid efficiency.
  • Major components are built to be rebuilt, eliminating waste and saving you money by giving your dozer a second – and even third – life.

Serviceability and Customer Support

Ease of Service

The D6N is designed to help you get routine service done quickly and efficiently so you can get to work.

A two piece engine enclosure door, flip latches and a panel you can remove without tools gives you easy access to service points. Grease points are grouped and located in the engine compartment as well, so they are protected but still allow you to get to them quickly. The radiator door is hinged for easy cleanout access.

Electrical disconnect, hour meter and the remote lighting access switch are accessible from ground level on the left side of the machine. Hydraulic service points are grouped on the right side of the machine. And for quick undercarriage cleanouts, a new lockable shovel mounting bracket has been added to the back of the machine.

An automatic hydraulic valve lash eliminates the need for manual adjustment, saving you time and money on engine maintenance.

Special Arrangements

D6N WH Waste Handler

  • Specialized guarding, striker bars and seals help protect the machine from impact and airborne debris.

  • Bottom and final drive guarding help prevent debris from wrapping around or damaging vital components.

  • The cooling system is designed for high debris environments, with easy access for cleanout.

  • Specialized air handling features help deliver cleaner air to the machine.

  • Landfill blades and center-hole track shoes help you optimize your waste handler for the job.
D6N Forestry Arrangement
  • Optional sweeps help protect the cab, top and sides of the machine.
  • Screens give added impact protection to cab windows (ISO 8084).
  • Additional guarding helps protect the underside of the machine from stumps and other heavy debris.
  • The cooling system is designed for high debris environments, with easy access for cleanout.

Standard Equipment:

Optional Equipment:

    Power Train
    • Precleaner, Turbine with Screen
    • XL – SystemOne
    • XL – Heavy Duty
    • XL – Heavy Duty with Double Flange
    • XL – SystemOne Fine Grading
    • XL – Heavy Duty Fine Grading
    • LGP – SystemOne
    • LGP – Heavy Duty
    • LGP – Heavy Duty with Double Flange
    • LGP – Super LGP
    • XL – Heavy Duty – Waste
    • LGP – Heavy Duty – Waste
    • Track Pairs, XL, SystemOne (40 sections): – 610 mm (24 in), Extreme Service – 560 mm (22 in), Extreme Service – 610 mm (24 in), Moderate Service (46 sections)
    • Track Pairs, XL, Heavy Duty (40 sections): – 600 mm (24 in), Extreme Service – 600 mm (24 in), Moderate Service (46 sections) – 600 mm (24 in) Extreme Service, Center Hole
    • Track Pairs, LGP, SystemOne (46 sections): – 840 mm (33 in), Moderate Service – 840 mm (33 in), Extreme Service – 860 mm (34 in), Extreme Service
    • Track Pairs, LGP, Heavy Duty (46 sections): – 600 mm (24 in), Extreme Service – 840 mm (33 in), Extreme Service – 840 mm (33 in), Extreme Service, Center Hole – 860 mm (34 in), Extreme Service
    • Track Pairs, Super LGP, Heavy Duty (52 sections): – 1067 mm (42 in), HD Self Cleaning – 1067 mm (42 in), HD Double Grouser
    Track Guiding Guards
    • XL, SystemOne: – Guard Guiding, Center – Guard Guiding, Front and Rear – Guard Guiding, Full
    • XL, Heavy Duty: – Guard Guiding, Center – Guard Guiding, Extreme Service, Full
    • LGP, SystemOne: – Guard Guiding, Center – Guard Guiding, Front and Rear – Guard Guiding, Full
    • LGP, Heavy Duty: – Guard Guiding, Center – Guard Guiding, Extreme Service, Full
    Rear Control Packages
    • Ripper Ready Package
    • Winch Ready Package
    • Dual Control Package (SU, VPAT, Super LGP)
    Fan And Cooling
    • Radiator, Trash Resistant
    • Direct Drive Fan, Reversible
    • Direct Drive Fan with Hydraulically Reversible Blades
    Weather Packages And Batteries
    • Battery, Standard, Package
    • Battery, Heavy Duty, Package
    • Cold Weather, 120V, Package
    Technology Products
    • Cat AccuGrade
    • Cat Grade with 3D
    • ARO Installation
    • No ARO Installation
    • Product Link: – Product Link, Satellite PLE 631 – Product Link, Cellular PLE 641 – No Product Link
    Fuel Systems
    • Fuel Tank, Standard
    • Fuel Tank, Fast Fill and Refill Ready
    • Guard Packages: – Guard, VPAT, Standard, Package – Guard, VPAT, Heavy Duty, Package – Guard, SU, Heavy Duty, Package – Guard, Rear, Standard – Guard, Rear, Heavy Duty – No Guard
    Rear Attachments
    • Ripper, Teeth Straight, Package
    • Ripper, Teeth Curved, Package
    • PA55 Winch, Standard Speed Package
    • PA55 Winch, Slow Speed, Package
    • Drawbar
    • Rear Box with Striker Bar
    • No Rear Attachment
    Rear Hydraulics
    • PTO Filter, No Winch
    • PTO Filter, Winch
    Bulldozer Packages
    • Bulldozer, VPAT XL, STD Package
    • Bulldozer, VPAT LGP, STD Package
    • Bulldozer, VPAT XL, HD Package
    • Bulldozer, VPAT, LGP, HD Package
    • Bulldozer, VPAT XL, GRADE with 3D
    • Bulldozer, VPAT, LGP, GRADE with 3D
    • Bulldozer, SU XL Package
    • Bulldozer Super LGP
    • Blade, ARO XL, VPAT
    • Blade, ARO LGP, VPAT
    • Blade, ARO XL Foldable, VPAT
    • Blade, ARO LGP Foldable, VPAT
    • Blade, Landfill (XL or LGP)
    • Blade, Super LGP
    • Blade, SU XL
    • No Blade
    • Lights
    • Forestry Lights
    • GRADE with 3D Lights
    Operator Environment
    • Cab Packages: – Standard with Air Suspension Seat – Cab Comfort Package with Air Suspension/Heated/Ventilated Seat – Cab Comfort Package – Heavy Duty
    • Camera Arrangement
    • Radio, AM/FM/AUX/USB/Bluetooth
    Hydraulic Oil
    • Hydraulic Oil, Biodegradable
    Starters, Batteries, And Alternators
    • Electrical Insulated Breather
    • Beacon, Rotating
    Guards – Cab Protection
    • Cab, Protection Package
    • Screen, Rear
    • Screen, Grill Front
    • Grid, Sandblast
    • Guard, Rear, Drawbar and Winch Ready
    • Antifreeze, (–37° C/–34.6° F)
    Other Attachments
    • Winch Options: – Fairlead, 3 Rollers – Fairlead, 4 Rollers
    Maintenance And Related Attachments
    • Shovel Holder
    • Refilling Fuel Pump
    • Oil Change System, High Speed
    Special Arrangements
    • Forestry Package (XL or LGP)
    • Waste Handler (XL or LGP)