D8 GC Dozer

The Cat® D8 GC gives you performance and durability in a simple, economical dozer. Designed to take on everything from rocky terrain to desert sand to extreme cold, this bulldozer is easy to operate and delivers the straightforward service and maintenance you need.



  • Cost effective to own and operate - up to 10 percent lower owning cost compared to D8T.
  • Choices like General Duty undercarriage and a simplified ripper offer lower initial purchase price options.
  • Delivers the weight and horsepower you need for solid dozing and ripping performance.
  • Equipped with the well-known Cat 3406C engine and mechanical transmission for power and ease of maintenance.

Comparisons to D8T.


  • Easy maintenance with widely available parts.
  • Simple mechanical systems are easy to diagnose, maintain and repair, even in remote locations.
  • Major components are modular for easy maintenance and repair access.
  • Wide access doors and grouped service points save routine maintenance time.
  • Individual radiator cores can be quickly replaced for ease of service.
  • Exclusive new Cat hydraulic and power train oil filters offer extended service intervals to save you time and money.
  • Product Link™ telematics* help simplify your maintenance by tracking machine location and service hours.

*Not available in all areas. Please consult your Cat dealer.


  • Caterpillar designed power train components work as a system for reliability and performance.
  • Durable, proven Cat 3-speed mechanical planetary power shift transmission.
  • Heavy structures make for a robust machine that can stand up to high impact shock loads and twisting forces.
  • Caterpillar elevated sprocket undercarriage protects the power train from shock loads.
  • Suspended undercarriage provides a smooth ride and better traction in uneven terrain.


  • Harness more power to the ground with a proven, Caterpillar exclusive torque divider.
  • Differential Steering maintains full power to both tracks for best-in-class turning, even with a full blade load.
  • High drive design allows heavy components to sit low in the mainframe, resulting in a low center of gravity and excellent machine balance.
  • Dedicated implement pump ensures hydraulic power when you need it.
  • Proven Advanced Modular Cooling System (AMOCS) offers cooling capacity and air flow so you can work in the most demanding environments.


  • Choice of cab or canopy dozer, with Integrated Roll Over Protective Structure (ROPS/FOPS), for comfort, excellent visibility and added safety.
  • Simple tiller bar control for direction and gear selection offers easy operation and precise control in close areas.
  • Quiet cab interior, pressurized to help keep out dust for a cleaner operating environment.
  • Easy-to-read analog display with machine health monitoring keeps operator informed about machine operating conditions.
  • Added comfort with available cab air conditioning.
  • Choose from three light packages, all with longer life, brighter LED bulbs to illuminate your work area.


  • Choose Heavy Duty undercarriage for aggressive, high-impact applications like logging/reforestation, side slopes and rocky conditions.
  • General Duty undercarriage is available for low-to-moderate impact applications.
  • General Duty and Heavy Duty components are interchangeable and Heavy Duty shoes can be installed on General Duty link assemblies to maximize flexibility to meet your needs.


  • Semi-Universal (SU) blade gives you the capacity you need for a wide variety of earthmoving jobs.
  • Add an optional Rock Guard and Wear Plate to the blade for added durability and longer wear life.
  • Rear attachment choices add versatility - choose single-shank ripper, rigid drawbar, rear counterweights or a dealer-installed winch.
  • A fixed ripper provides a simplified, lower cost option.
  • Choose a single-shank ripper with pin puller to enable shank position changes from the cab.


  • Equip your dozer with factory features designed to enhance machine performance in extremely sandy or abrasive underfoot conditions.
  • Cooling system is designed for high debris environments, with easy access for cleanout.
  • Specially coated fan and radiator help resist abrasion.
  • Core protection grid.
  • High ambient fluids package.
  • Sealed bottom guard and added seals to help keep fine abrasive particles out of components.
  • Optional wear plates can be replaced to give you longer blade life when working in abrasive conditions.


  • For work in extreme cold, choose factory options for added starting capability and improved component performance in arctic temperatures.
  • Cold weather batteries provide added cranking power.
  • Arctic undercarriage and carrier rollers have cold weather seals for added protection.
  • Arctic lubricant provides a thinner oil for better lubrication in extreme conditions.

Standard Equipment

  • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Cat 3406C DITA diesel engine
  • 3F/3R speed powershift transmission
  • 4-planetary double reduction final drives
  • Precleaner
  • Fan speed - basic
  • Cooling fan
  • Fuel priming pump
Operator Environment
  • Enclosed cab with integrated ROPS/FOPS
  • Adjustable contour suspension cloth seat
  • Adjustable armrest
  • Retractable seatbelt, 76 mm (3 in) wide
  • Differential steering tiller bar with dual-twist control
  • Electronic monitoring system
  • Underhood air conditioning
  • Suspended undercarriage: Heavy Duty Positive Pin Retention (PPR)
  • Sealed and lubricated track: 44 section positive pin retention (PPR)
  • Moderate Service track shoes
  • Lifetime lubricated track rollers and idlers
  • Hydraulic track adjusters
  • Replaceable sprocket rim segments
Technology Products
  • Product Link, Basic Cellular PL243
  • Product link ready
  • 2 Batteries, 12V each, 24V system
  • 12V Converter, 10 amp with outlet in cab
  • LED Lights - 4
  • Load sensing dozer (lift/tilt) hydraulics
  • Ripper (lift/pitch) hydraulics
  • Independent steering and implement hydraulic pumps
Service and Maintenance
  • Sampling ports for engine oil, coolant, powertrain oil, hydraulic oil
  • Semi-Universal (SU) blade
  • Bottom guards
Dozer Arrangements
  • Standard Arrangement

Additional information

Offering Type

Engine Model

Cat 3406C

Engine - Net Power - Rated - ISO 9249/SAE J1349

226 kW ( 303 HP )

Engine - Net Power - Rated - ISO 9249/SAE J1349 (DIN)

307 mhp ( 307 mhp )

Engine - Build Number


Engine - Emissions


Engine - Biodiesel Capability

Up to B100*

Engine - Note (1)

Net power advertised is the power available at the flywheel when engine is equipped with a fan at maximum speed, air cleaner, muffler and alternator. Advertised power is tested per the specified standard in effect at the time of manufacture.

Engine - Note (2)

*Cat engines are compatible with the following renewable, alternative, and bio-fuels** with lower greenhouse gas emission impact: Up to B20 biodiesel (FAME)***, up to 100% HVO and GTL renewable fuels. **Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. ***Up to B100 capable when equipped with optional B100-compliant fuel lines. Please consult the Operations and Maintenance Manual (OMM) for further information.

Engine - Power - Net

226 kW ( 303 HP )

Weights - Operating Weight

37557 kg ( 82800 lb )

Transmission - Power Train

Fully Mechanical

Service Refill Capacities - Fuel Tank

625 l ( 165 gal (US) )

Standard SU - Operating Weight

37557 kg ( 82800 lb )

Standard SU - Ground Pressure

85.3 kPa ( 12.4 psi )

Standard SU - Width of Standard Shoe

610 mm ( 24 in )

Standard SU - Blade

Semi-Universal (SU)

Standard SU - Blade Capacity

8.7 m³ ( 11.4 yd³ )

Desert/High Abrasion - Operating Weight

37876 kg ( 83502 lb )

Desert/High Abrasion - Ground Pressure

86 kPa ( 12.5 psi )

Desert/High Abrasion - Width of Standard Shoe

610 mm ( 24 in )

Desert/High Abrasion - Blade

Semi-Universal (SU)

Desert/High Abrasion - Blade Capacity

8.7 m³ ( 11.4 yd³ )

Note (1)

Configurations and features may vary by region. Please consult your Cat dealer for availability in your area.

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