D8

Medium Dozers D8 Tier 4 / Stage V


Key Specs

Engine Model
Cat® C15
Cat® C15
Power - Net
363 hp
271 kW
Operating Weight
87083 lb
39500 kg

Overview

RENOWNED PERFORMANCE

The Cat® Next Generation D8 Dozer delivers renowned performance you expect, with the added benefit of next generation technology. A fully automatic, 4-speed transmission makes efficient operation easy, without having to manage gear shifts.The broadest range of technology features in the industry works together seamlessly to help you make the most of your equipment investment. Common interface and controls from the D5 through D8 make it easy to operate different machine sizes.

Benefits

More Work. Less Effort.

Common cab, controls, and interface with the D5-D8 dozers and standard ease-of-use aids create an efficient operating environment.

Productivity with Cat Technology

Assist features reduce operator inputs, while options from the factory such as Cat Grade with 3D hardware or Cat Command with remote control ready make implementing technologies easier.

Enhanced Safety and Service

Keep your site safe with a variety of camera options for your machine and reduce downtime with 30-minute cab removal and Read/Write Remote Troubleshoot.

Features At A Glance

Displaying 1-6 of 9

NEXT GENERATION PERFORMANCE

NEXT GENERATION PERFORMANCE

        
  • Fully automatic 4-speed powershift transmission continuously adjusts for maximum efficiency and power to the ground without added operator input.
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  • Next generation cab for the D8 means common controls and interface for all D5-D8 machines, making operators more efficient across multiple dozers.
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  • Blades are right sized to the machine to help you get jobs done in fewer passes.
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  • Elevated sprocket gives you better ride and balance, plus more penetration force.
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  • Long undercarriage is standard, with more track at the rear of the machine for superior dozing performance.
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  • Outfit your dozer from the factory to take on the challenges of slot dozing, ripping, fine grading, and more.
OPERATOR HELPERS

OPERATOR HELPERS

Assist features help make work easier, especially for less experienced operators. Some blade and steering functions are automated so newer operators can work at productivity levels closer to their veteran counterparts. Seasoned operators can enjoy reduced effort and fatigue, along with faster, more accurate results.
        
  • Standard Assist features can reduce operator inputs up to 45%*.
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  • Cat Assist with Attachment Ready Option (ARO) features include:     
              
    • Stable Blade works seamlessly with operator inputs to help produce a smoother surface when operating manually.
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    • Traction Control automatically reduces track slip to save you time, fuel and track wear.**
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    • AutoCarry™ automates blade lift to help you maintain consistent blade load and reduce track slip.**
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    • Blade Load Monitor gives you real-time feedback on current load versus the optimal blade load based on your ground conditions. Actively monitors machine load and track slip to help you reach optimal pushing capacity.**
    •         
    • Cat Grade with Slope Assist automatically maintains pre-established blade position without a GNSS/GPS signal ─ no additional hardware or software needed. For machines with 3D, operators can easily switch back and forth from full 3D automatics to Slope Assist.
    •         
    • Steer Assist automates track and blade tilt steering. Helps reduce operator fatigue by automatically maintaining straight travel with light loads or heavy loads on flat ground and side slopes. Helps reduce steering inputs. No GNSS/GPS required.
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    • Slope Indicate is included in the main machine display and shows side slope and uphill/downhill grades to help operators with slope work.
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    • Attachment Ready Option (ARO) provides wiring and mounting provisions for dealer installation of Grade with 3D, Accugrade, UTS, or other grade control systems.
    •         
    • AutoRip automates ripper raise/lower and shank in/out to maximize ripping productivity.
    •     
        
  •     
  • Application Profile lets you save machine settings based on application or operator preference. Utilize any of the default profiles defined by our expert operators or customize profiles for various jobs or multiple operators.
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  • Operator ID allows you to save custom touchscreen setup, machine settings, and to track individual operator productivity, safety and training opportunities via Product Link™.
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  • Machine security – passcode helps prevent theft and unauthorized operation by requiring an operator to enter an ID to start the machine.
* Input reduction based on product testing of a D5 (17B) Next Generation Dozer with and without the use of Slope Assist in a side slope application. Inputs measured as number of times operator adjusts controls, collected and verified by electronic control module (ECM). Test conducted by Caterpillar at Washington, IL, in July 2022.
**Feature not operational indoors or in areas where a GNSS/GPS signal is not available.
UPTIME COUNTS

UPTIME COUNTS

        
  • Cab can be removed in about 30 minutes.
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  • Easy access without tools under the cab floor if needed.
  •     
  • Option to install Cat Grade with 3D hardware from the factory eliminates shop time later.
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  • Reduce downtime with Read/Write Remote Troubleshoot, allowing dealer technicians to diagnose more issues remotely, saving time on service calls.
  •     
  • Keep safety at the forefront with additional camera options for enhanced visibility around the machine.
  •     
  • Platform with guard rail makes refueling and diesel exhaust fluid (DEF) fill safe and convenient.
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  • Elevated sprocket makes cleanout easier and provides convenient, modular service.
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  • Reversing hydraulic demand fan helps remove debris while you work, saving cleanout and maintenance time.
  •     
  • Longer life LED lights help save you time and money.
COMFORT AND VISIBILITY

COMFORT AND VISIBILITY

        
  • Common cab, interface, and controls with D5 through D8, raising the bar for comfort, productivity, and straightforward operation across dozer models.
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  • Integrated rollover protective structure (ROPS) and next generation cab design provides 17% improved visibility.*
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  • Easy-to-use 254 mm (10 in.) touchscreen main display.
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  • Standard, high-definition rearview camera shows prominently in the main display when in reverse.
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  • Key Features Help, built into the display, gives you an overview of machine and technology features and helpful operating tips.
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  • Wide air suspension seat has multiple adjustments for personalized comfort. Armrest adjusts independent of the seat.
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  • Distributed cab heating/cooling circulates air effectively around the operator and helps reduce window fogging/frosting.
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  • Ample storage spaces throughout the cab.
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  • Convenient USB and auxiliary power ports in cab.
*Visibility improvements based on virtual visibility analysis. Comparisons made from a D8 (21B) model to the Next Generation D8 (22A) model.
BUILT-IN DURABILITY

BUILT-IN DURABILITY

        
  • Elevated sprocket protects major components from shock loads.
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  • Heavier frame and structures for added durability.
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  • Cat C15 engine eliminates exhaust gas recirculation (EGR) system for greater reliability; simplified with a single engine electronic control module (ECM).
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  • Redesigned fuel system provides greater reliability and more accurate fuel delivery.
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  • New Heavy Duty Extended Life undercarriage— HDXL with DuraLink™ — provides more seal life in high impact conditions.
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  • Heavy-duty batteries for more cold-cranking power.
WASTE HANDLING PERFORMANCE

WASTE HANDLING PERFORMANCE

        
  • Cat waste handlers are designed and built from the frame up to take on the challenges of landfill work.
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  • Specialized guarding, striker bars, and seals help protect machine and undercarriage from impact, wrapping, and airborne debris.
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  • Impact-resistant polycarbonate cab doors eliminate need for door screens.
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  • High-debris cooling system with automatic reversing fan and swing-out cleanout access.
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  • Lights mounted up and away from main debris area for protection, while still giving you plenty of light on the work area.
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  • Waste undercarriage, center-hole track shoes, and landfill blades help optimize performance.
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  • Laminated thermal shields and insulated clean emissions module.
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  • Pair with waste handling application profile for preset fan purge durations and Steer Assist blade steer enabled.

Product Specifications for D8

Engine Model Cat® C15 Cat® C15
Power - Net 363 hp 271 kW
Net Power - ISO 9249/SAE J1349 363 hp 271 kW
Net Power - ISO 9249 (DIN) 368 mhp 368 mhp
Build Number 22A 22A
Emissions U.S. EPA Tier 4 Final/ EU Stage V/Japan 2014/Korea Stage V/China Nonroad Stage IV U.S. EPA Tier 4 Final/ EU Stage V/Japan 2014/Korea Stage V/China Nonroad Stage IV
Note (1) Net power at 2,050 rpm. Net power advertised is the power available at the engine flywheel when the engine is equipped with a fan, air cleaner, clean emissions module and alternator. Advertised power is tested per the specified standard in effect at the time of manufacture. Net power at 2,050 rpm. Net power advertised is the power available at the engine flywheel when the engine is equipped with a fan, air cleaner, clean emissions module and alternator. Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2) Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).
Operating Weight 87083 lb 39500 kg
Powertrain Fully Automatic 4-Speed with Lock-up Clutch (LUC) torque divider Fully Automatic 4-Speed with Lock-up Clutch (LUC) torque divider
Fuel Tank 165.6 gal (US) 627 l
DEF Tank 8.7 gal (US) 33 l
Operating Weight 87083 lb 39500 kg
Ground Pressure 13 psi 89.7 kPa
Width of Standard Shoe 24 in 610 mm
Blade Semi-Universal (SU) Semi-Universal (SU)
Blade Capacity 13.47 yd³ 10.3 m³
Operating Weight 83963 lb 38085 kg
Ground Pressure 7.9 psi 54.6 kPa
Width of Standard Shoe 38 in 965 mm
Blade LGP Semi-Universal (SU) LGP Semi-Universal (SU)
Blade Capacity 12.9 yd³ 9.9 m³
Operating Weight 87964 lb 39900 kg
Ground Pressure 12.1 psi 83.7 kPa
Width of Standard Shoe 26 in 660 mm
Blade Semi-Universal (SU) Landfill Semi-Universal (SU) Landfill
Blade Capacity 27.7 yd³ 21.2 m³
Operating Weight 91591 lb 41545 kg
Ground Pressure 8.6 psi 59.6 kPa
Width of Standard Shoe 38 in 965 mm
Blade Semi-Universal (SU) Landfill Semi-Universal (SU) Landfill
Blade Capacity 27.7 yd³ 21.2 m³
Recyclability 98% 98%
Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system contains 1.36 kg (3 lb) of refrigerant which has a CO2 equivalent of 1.95 metric tonnes (2.14 tons). The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system contains 1.36 kg (3 lb) of refrigerant which has a CO2 equivalent of 1.95 metric tonnes (2.14 tons).

D8 Standard Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat® dealer for details.

Powertrain

  • Cat® C15 Engine
  • Fully-automatic 4-speed transmission with lock-up clutch (LUC) torque divider
  • Aftercooler, air-to-air (ATAAC)
  • Extended life coolant
  • Diesel exhaust fluid (DEF) system - electronic fill indicator, heated lines/tank
  • Differential steering
  • Engine air filter with electronic service indicator
  • Engine air precleaner with dust ejection
  • Engine idle shutdown
  • Final drives, double reduction - Standard or LGP
  • Fuel water seperator
  • Fuel priming pump, electric
  • Fan, hydraulic demand
  • Fan, auto reversing
  • Radiator, aluminum bar plate with debris resistant cores
  • High performance single plane cooling system
  • Starting aid, automatic ether

Cat Technology

  • Cat Slope Indicate
  • Cat Assist with ARO package
  • Third party grade control ready cab
  • Compatibility with radios and base stations from Trimble, Topcon, and Leica
  • Capability to install 3D grade systems from Trimble, Topcon, and Leica
  • Product Link™ – Cellular
  • Remote Flash/Troubleshoot
  • Cat Track Wear Sensor
  • Machine security - passcode
  • Remote control ready

Operator Environment

  • Fully redesigned cab with integrated ROPS and FOPS, single pane door glass, sliding windows, with Cat Advanced Cabin Filtration
  • Full-color 254 mm (10 in) liquid crystal touchscreen display
  • High definition rear view camera with backup lines
  • In-display key machine features
  • Operator ID/operator ID with security
  • Cloth seat with mechanical adjustable lumbar support
  • Armrests adjustable fore-aft and vertically
  • Electrohydraulic implement and steering controls
  • Joystick control - ARO
  • Decelerator pedal
  • Fresh air filter
  • Cab mounted modular HVAC system with automatic reversing fans. Automatic temperature and blower control with distributed ducting.
  • Rearview mirror
  • Retractable 76 mm (3 in) seat belt
  • Cup holders
  • Dash foot pads
  • Entertainment radio with Bluetooth and microphone
  • Lunch box storage
  • Wipers
  • USB and AUX ports
  • Operator presence switch

Guarding and Screens

  • Bottom guards - standard

Electrical

  • Lights - 6 LED
  • Access/egress lighting with shutdown timer
  • Backup alarm
  • Converter: 15 Amp, 12V outlets
  • Forward warning horn

Hydraulics

  • Load sensing hydraulics
  • Independent steering and implement pumps
  • Dozer tilt hydraulics - single tilt
  • Guarded blade hydraulic hoses
  • Electronically enabled quick drop valve
  • Rear hydraulics ripper and winch ready

Batteries, Starters, Alternators, and Coolant

  • 150 Amp alternator
  • 24 Volt starter
  • Engine coolant, –37° C (–35° F)
  • Four maintenance free 12-volt batteries (900 cca) (24-volt system)

Push Arms

  • Standard

Undercarriage

  • Standard or low ground pressure (LGP) undercarriage
  • Heavy duty with positive pin retention (PPR) undercarraige - 44 section track, sealed and lubricated, single grouser shoes
  • Suspension-type undercarriage
  • Carrier rollers
  • Hydraulic track adjusters
  • Lifetime lubricated track and roller
  • Moderate service track shoes
  • Track guide
  • Sprocket rim segments, replaceable
  • 8-roller tubular track roller frame (carrier roller ready)
  • Two-piece master links

Service and Maintenance

  • 30-minute cab removal
  • Centralized, remote mounted pressure taps
  • Ecology drains
  • Extended service intervals (500 hours engine, 1,000-hour powertrain)
  • Ground level service center (remote electrical disconnect, secondary shutdown switch, hour meter, jump start)
  • Heavy duty perforated radiator doors, louvered and hinged
  • Under hood work light
  • Removable engine enclosures, perforated and hinged
  • Scheduled Oil Sampling (S·O·S℠) ports
  • Shovel holder

D8 Optional Equipment

Note

  • Standard and optional equipment may vary. Consult your Cat® dealer for details

Powertrain

  • Brakes, extreme service
  • Engine air precleaner with screen and dust ejector
  • Engine with thermal shield
  • Final drives, double reduction - Arctic, Waste
  • Oil change system, high speed
  • Sound suppression
  • Starting aid, jacket water heater (110V or 220V)

Cat Technology

  • Cat Grade 3D Ready with Assist package (hardware only)
  • Cat Grade 3D with Assist package
  • Product Link™ – dual mode
  • Grade connectivity
  • Grade corrections radio
  • Machine security - Bluetooth
  • Cat Command for Dozing

Operator Environment

  • High debris cab, fully redesigned with integrated ROPS and FOPS, impact resistant polycarbonate doors, solid side windows for improved sealing, powered precleaner with Cat Advanced Cabin Filtration for improved performance and filter life
  • Cab glass capable of withstanding up to 40 psi
  • Deluxe leather heated/ventilated seat with electronic adjustable lumbar support
  • Powered fresh air filter precleaner
  • Communication radio ready
  • Floor plate and pedals for shorter operators
  • Emergency hammer
  • Window shades

Undercarriage

  • Heavy duty extended life (HDXL) with PPR undercarriage - 44 section track, sealed and lubricated, single grouser shoes
  • Waste undercarriage
  • Arctric undercarriage
  • Extreme service track shoes

Blades

  • Semi-Universal (SU)
  • Universal
  • Waste/Landfill
  • Angle
  • Rock guard/wear plate
  • Push plate
  • FirstCut cutting edges (SU blades)

Push Arms

  • Extreme

Hydraulics

  • Dozer tilt hydraulics – dual tilt

Electrical

  • Premium lights – 12 LED
  • Beacon warning light

Batteries, Starters, Alternators and Coolant

  • 150 Amp ducted alternator
  • Arctic engine coolant, –51° C (–60° F)

Service and Maintenance

  • Fast fuel fill
  • High-speed oil change
  • Heavy duty radiator doors for waste and woodchip applications
  • Quick access cab floor

Attachments

  • Multi-shank ripper with CapSure ripper tips and shank protector
  • Single shank ripper with CapSure ripper tip and shank protector
  • Pin puller (single shank)
  • Rear striker box with striker bar
  • Rear striker bar
  • Winch, PV140
  • Rear counterweight
  • Drawbar

Guarding and Screens

  • Bottom guards - heavy duty, powered, sealed
  • Cab rear screen - fixed or hinged
  • Cab side screens - hinged
  • Fuel tank guards
  • HVAC guard
  • Light guards
  • Striker bars, front, suspended
  • Sweeps package

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From the D1 to the D11, Cat Dozers now have simpler names but the same reliable performance.

From the D1 to the D11, Cat Dozers now have simpler names but the same reliable performance.

Dozer technology comes in scalable packages, so you can select the level that fits your business needs.

Dozer technology comes in scalable packages, so you can select the level that fits your business needs.

From the D1 to the D11, Cat Dozers now have simpler names but the same reliable performance.
Dozer technology comes in scalable packages, so you can select the level that fits your business needs.

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