Engine Model Cat® C7.1 ACERT™
Flywheel Power 166 HP
Bore 4.1 in
Stroke 5.3 in
Displacement 433 in³
Emissions U.S. EPA Tier 4 Final/EU Stage IV/Korea Tier 4 Final
Engine Power - Maximum - At 2,200 rpm - ISO 14396 178 HP
Engine Power - Maximum - At 2,200 rpm - ISO 14396 (DIN) 180 HP
Engine Power - Maximum - At 2,200 rpm - SAE J1995 182 HP
Net Power - 1,800 rpm - ISO 9249/SAE J1349 166 HP
Net Power - 1,800 rpm - ISO 9249/SAE J1349 (DIN) 168 HP
1.0 Forward 2.1 mile/h
1.5 Forward 2.7 mile/h
2.0 Forward 3.6 mile/h
2.5 Forward 4.7 mile/h
3.0 Forward 6.1 mile/h
0.5 Forward 1.6 mile/h
0.5 Forward (EU) 1.5 mile/h
0.5 Reverse 1.9 mile/h
0.7 Forward 1.7 mile/h
0.7 Forward (EU) 1.6 mile/h
1.0 Forward (EU) 1.9 mile/h
1.7 Forward 3 mile/h
2.7 Forward 5.2 mile/h
Service Refill Capacities
Fuel Tank 73.2 gal (US)
Cooling System 10.6 gal (US)
Final Drive - Each 1.8 gal (US)
Hydraulic Tank 7.8 gal (US)
Operating Weight 36943 lb
LGP VPAT - Blade 2720 lb
LGP VPAT - Foldable 3287 lb
LGP VPAT - Landfill 3166 lb
Multi-Shank Ripper - With 3 Shanks 2959 lb
Operating Weight - LGP 40446 lb
Operating Weight - XL 36943 lb
Shipping Weight - LGP 39339 lb
Shipping Weight - XL 36153 lb
XL SU - Blade 5732 lb
XL VPAT Blade 2341 lb
XL VPAT Foldable 2762 lb
XL VPAT Landfill 2912 lb
Ground Contact Area* - LGP 8928 in²
Ground Contact Area* - XL 5518 in²
Ground Pressure - LGP* 4.5 psi
Ground Pressure - XL* 6.7 psi
Grouser Height - LGP 2.2 in
Grouser Height - XL 2.6 in
Note (1) *ISO 16754
Shoe Width - LGP 33.1 in
Shoe Width - XL 24 in
Shoes/Side - LGP 46
Shoes/Side - XL 40
Track Gauge - LGP 85 in
Track Gauge - XL 74.4 in
Track Rollers/Side - LGP 8
Track Rollers/Side - XL 7
Track on Ground - LGP 122.4 in
Track on Ground - XL 102.6 in
Capacity - LGP VPAT 5.1 yd³
Capacity - LGP VPAT - Foldable 5.1 yd³
Capacity - XL SU 5.6 yd³
Capacity - XL VPAT 4.3 yd³
Width - LGP VPAT 13.42 ft
Width - LGP VPAT - Foldable 13.42 ft
Width - XL SU 10.33 ft
Width - XL VPAT 10.75 ft
Each Additional Shank 172 lb
Maximum Clearance Raised - Shank Tip 24.5 in
Maximum Penetration - LGP 15.6 in
Maximum Penetration - XL 20.2 in
Maximum Penetration Force - LGP 9667 lbf
Maximum Penetration Force - XL 11600 lbf
Maximum Pry-out Force - LGP 38217 lbf
Maximum Pry-out Force - XL 47480 lbf
Pocket Spacing 3.3 ft
Shank Gauge 6.6 ft
Shank Section 73 mm × 176 mm (2.9 in × 6.9 in)
Weight - With Three Shanks 3444 lb
Type Fixed Parallelogram
Number of Pockets 3
Overall Beam Width 86.7 in
Beam Cross Section 216 mm × 254 mm (8.5 in × 10.0 in)
Cable Ferrule Size - O.D. × Length 54 mm × 67 mm (2.13 in × 2.63 in)
Drum Capacity - 22 mm (0.88 in) 288.75 ft
Maximum Bare Drum - Line Pull* 69200 lb
Maximum Bare Drum - Line Speed 141 ft/min
Maximum Full Drum - Line Pull* 44410 lb
Maximum Full Drum - Line Speed 217 ft/min
Overall Width 38.4 in
Rope Diameter - Recommended 0.875 in
Winch Case - Width 38.4 in
Winch Drive Mechanical
Winch Model PA55
Oil Capacity 19.55 gal (US)
Winch and Bracket Length 45.1 in
Drum Diameter 10 in
Drum Width 12.4 in
Flange Diameter 19.8 in
FOPS FOPS (Falling Object Protective Structure) meets ISO 3449-2005 Level II.
ROPS ROPS (Rollover Protective Structure) offered by Caterpillar for the machine meets ROPS criteria ISO 3471:2008.
Brakes Brakes meet the standard ISO 10265:2008.
Sustainability - Sound and Vibration Levels
Note *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 85.5 dB(A)
Sound Levels - Dynamic Operator Sound Pressure Level (LpA) - ISO 6396:2008 76 dB(A)
Sound Levels - Maximum Sound Power Level - 2000/14/EC 110 dB(A)
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
1.0 Reverse 2.5 mile/h
1.5 Reverse 3.4 mile/h
2.0 Reverse 4.4 mile/h
2.5 Reverse 5.9 mile/h
3.0 Reverse 7.6 mile/h
Service Refill Capacities
Engine Crankcase 4.5 gal (US)
Power Train 42.3 gal (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.
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.
Note (2) No derating required up to 3000 m (9,840 ft) altitude, beyond 3000 m (9,840 ft) automatic derating occurs.
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 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-ULS™ 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 (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.
Hydraulic Controls - Pressures
Maximum Implement Operating Pressure 3640 psi
Maximum Steering Operating Pressure 6556 psi
Hydraulic Controls - Pump
Angle Cylinder Flow - VPAT 33.5 gal/min
Lift Cylinder Flow 33.5 gal/min
Pump Output - Implement 33.5 gal/min
Pump Output - Steering 36.2 gal/min
Ripper Cylinder Flow 33.5 gal/min
Tilt Cylinder Flow 23.8 gal/min
Service Refill Capacities
DEF Tank 5 gal (US)
Roller Frames XL/LGP - Each 20/17.5 L (4.3/4.6 gal)
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 exposure level. The cab was properly installed and maintained. The test was conducted with the cab doors and the cab windows closed.
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 the doors and windows are open for extended periods or in a noisy environment.
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 (49.2 ft) and “the machine moving forward in an intermediate gear ratio.”
Specification Name Too Long 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 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: This dynamic operator sound pressure level is associated to a 2 dB(A) uncertainty.
Specification Name Too Long 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 (LWA) at the time of manufacture for the conditions that are specified in “2000/14/EC.” Your machine may have a different value.
0.5 Reverse (EU) 1.8 mile/h
0.7 Reverse 2.1 mile/h
0.7 Reverse (EU) 1.9 mile/h
1.0 Reverse (EU) 2.2 mile/h
1.7 Reverse 3.7 mile/h
2.7 Reverse 6.5 mile/h
Maximum Drawbar Pull - 1.0 Forward 71939 lbf
Maximum Drawbar Pull - 2.0 Forward 44512 lbf
Maximum Drawbar Pull - 3.0 Forward 25403 lbf
Ground Contact Area* - XL - Fine Grading 6479 in²
Ground Pressure* - XL - Fine Grading 5.8 psi
Grouser Height - XL - Fine Grading 2.6 in
Note (2) All dimensions with SystemOne undercarriage.
Shoe Width - XL - Fine Grading 24 in
Shoes/Side - XL - Fine Grading 46
Track Gauge - XL - Fine Grading 74.4 in
Track Rollers/Side - XL - Fine Grading 8
Track on Ground - XL - Fine Grading 122.4 in
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.
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.
Operating Weight - LGP Waste Handler 44749 lb
Operating Weight - XL Fine Grading 38162 lb
Operating Weight - XL Waste Handler 40818 lb
Shipping Weight - LGP Waste Handler 43642 lb
Shipping Weight - XL Fine Grading 37373 lb
Shipping Weight - XL Waste Handler 40029 lb
Note (1) *Weight: Includes pump, operator controls, oil, mounting brackets and spacers.
Note (2) Slow and standard speed winches are available.
Weight* 2814 lb
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.Blades
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 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.
D6N WH Waste Handler D6N Forestry Arrangement
- 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.
- 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.