Main Technical Specifications
MAKE Komatsu
MODEL D51PX-24

*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.

New Equipment Sales only available in assigned territories where Kirby-Smith Machinery, Inc. is a licensed distributor. Not all manufacturer's brands available at each location. Please contact your local Kirby-Smith branch if you have questions regarding availability.

New Komatsu D51PX-24 Bulldozer for Sale

From golf course construction to highway projects, the D51PX-24 is an all-around crawler dozer built for precise, high-speed grading. The PX model has a high-capacity, high-wear resistant dozer blade.

  • Lower ground pressure than D51EX
  • More dirt capacity than the D39
  • Production increased by up to 15% over prior model

Parallel Link Undercarriage System (PLUS): Designed to wear evenly so the machine provides close to 100% usage of undercarriage components, Komatsu PLUS undercarriage lowers undercarriage maintenance costs by up to 40% over a conventional undercarriage. Strengthened rollers and links increase wear life up to two times.

PAT dozer with adjustable pitch: Expand your productivity and gain more versatility in a variety of applications with a power angle tilt (PAT) dozer blade with adjustable blade pitch system.

Exceptional blade visibility: An innovative super-slant nose design provides excellent blade visibility for improved machine control and increased efficiency and productivity.

HST with electronic control: Fully electronic control provides complete automatic shifting and enables smooth control. Equipped with Komatsu-designed HST, this machine allows for Quick-Shift or variable speed selection.

Easy-access maintenance features: A swing-up fan with a gas strut-assisted lift system provides easy access to the radiator, oil cooler and charge air cooler. The hydraulic fan has a reversing fan for cleaning any objects that are restricting air flow.

Palm command control system lever: Designed for your operator’s comfort and ease of use, the ergonomic, low-effort palm command control system (PCCS) joystick controls all directional movements, including machine travel speed, as well as counter-rotation.

Dimensions
Length 15’11”
Width 11’
Height 9’11”
Weight 27,668 lbs. (Including ROPS cab, U frame for power angle tilt dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment)
Ground Clearance 15”
Turning Radius 102”
Operating Weight 31,438 lbs. (Including power angle tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank)
Fuel Tank Capacity 71.3 US gal
Frame Type Track roller Frame: Monocoque, large section, durable construction
Final Drive In-shoe mounted, axial-piston-type travel motors, with integrated two-stage planetary gear reduction. Compact, in-shoe mount reduces risk of damage by debris. Bolt-on sprocket ring with triple labyrinth seal design.
Engine
Engine Make Komatsu
Engine Model SAA4D107E-3
Engine Type 4-cycle, Direct Injection
Cylinders 4
Net Horsepower 131 HP
Cooling Water-Cooled
Bore x Stroke 4.21” x 4.88”
Speed - Foreward 1st: 0-2.1 MPH
2nd: 0-3.5 MPH
3rd: 0-5.6 MPH
Speed - Reverse 1st: 0-2.5 MPH
2nd: 0-4.0 MPH
3rd: 0-5.6 MPH
Gross Horsepower 133 HP
Governor All-speed, electronic
Rated RPM 2200 rpm
Lubrication System Method: Gear pump, force lubrication
Filter: Full-flow
Aspiration Variable geometry, water-cooled, turbocharged, air-to-air aftercooled
Piston Displacement 275 in³
Hydraulic Fan 122 HP
Fan Drive Type Hydraulic
Drivetrain
Tracks Sealed and lubricated track: Track tension is easily adjusted w/grease gun
Track Length 9’ (on ground)
Roller Type Lubricated track rollers
Ground Pressure 4.66 PSI
Track Number 7 per side
Grouser Height 2.2”
Hydraulic
Control Valve 3-spool control valve for Power Angle Tilt dozer
Positions:
Blade lift: Raise, hold, lower and float
Blade tilt: Right, hold, and left
Blade angle: Right, hold, and left
Additional control valve required for ripper
Position:
Ripper lift: Raise, hold and lower
Hydraulic Tank Capacity 17 US gallons
Hydraulic System Closed-Center Load Sensing System (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
Hydraulic Cylinders Double-acting, piston type
Number of Cylinders Number of cylinders x bore
Blade lift: 2 x 3.5”
Blade tilt: 1 x 4”
Blade angle: 2 x 3.5”
Relief Valve Setting 3,983 PSI
Operational
Blade Width 11’
Blade Height 3’10”
Blade Capacity 4.4 yd³
Suspension Rigid type
Steering Palm Command Control System (PCCS) joystick control for all directional movements. Pushing the joystick forward results in forward machine travel, while pulling it back reverses the machine. Simply tilt the joystick to the left or right to make a turn. Tilting the joystick fully to the left or right activates counter-rotation.
Hydrostatic Transmission (HST) provides smooth, powerful turns. Fully electronic control enables smooth control that can be adjusted in the monitor. The PCCS utilizes shift buttons to increase and decrease speed.
Shoes Number of shoes on each side-44
Shoe Width 28”
Shoe Type Single grouser
Track Gauge 6’2”
Ground Contact 6,042 in²

  • Accumulator for Electric Proportional Control (EPC)
  • Air cleaner, dry, double element type with caution lamp on monitor
  • Air conditioner (A/C)
  • Air inlet
  • Alternator, 24 V/85 A
  • Back-up alarm
  • Batteries, large capacity 24 V/92 Ah
  • Cab accessories
    • 12 V × 2 power supply
    • Cup holder
    • Rear view mirror
    • Rear view monitor system
    • Bluetooth/USB compatible radio with remote AUX plug (3.5 mm)
  • Crankcase guard and underguard
  • Decelerator/brake pedal (Single pedal)
  • Electronically controlled Hydrostatic Transmission (HST) with quick-shift and variable speed settings
  • Electronic monitor panel with on-board diagnostics
  • Engine hood and side panels
  • Engine, KOMATSU SAA4D107E-3, gross output of 131 HP, direct injection, water-cooled turbocharged, air-to-air aftercooler, cooled EGR, EPA Tier 4 Final and EU Stage 4 emissions certified
  • Fan, hydraulic driven, electronic control
  • Filler cap locks and cover locks
  • Fluid sampling ports
  • Foot rest, high mounted
  • Fuel pre-filter (10 micron) and fuel filter (2 micron)
  • Grease gun holder
  • High altitude arrangement (No fuel adjustment up to 2300 m)
  • Horn
  • Hydraulics for PAT dozer
  • Intake pipe with precleaner
  • Komatsu Diesel Oxidation Catalyst (KDOC)
  • KOMTRAX Level 5.0
  • Large high-resolution LCD
  • LED worklights
  • Lunch box holder
  • Marks and plates, English
  • Operator Identification System
  • Palm Command Control System (PCCS) with electronic control for travel control
  • Palm Command Control System (PCCS) with EPC for blade control
  • Power turn with counter rotation
  • Pullhook, front
  • Radiator guard grid
  • Radiator reserve tank
  • Real-time DEF monitoring
  • Rear-hinged radiator guard
  • Reverse travel speed presets
  • ROPS cab
  • Meets ISO 3471, SAE J/ISO 3471 ROPS standards, and ISO 3449 FOPS standard.
  • Seat belt, 3" retractable
  • Seat, air suspension, fabric, heated, low back, headrest
  • Shovel holder
  • Starting motor, 24 V/4.5 kW
  • Selective Catalytic Reduction (SCR)
  • Self adjusting roller
  • Sprockets, bolt-on
  • Sprocket inner guard
  • Track roller guards, end section
  • Track shoe assembly (PLUS)
    • Sealed and lubricated
  • D51PX-24: 28" single grouser shoe
  • Triple labyrinth final drive
  • Water separator

  • Dozer assembly
  • Hitch
  • Hydraulics for rear equipment
  • Track roller guard, full length
  • Multi-shank ripper:
    • Weight: 1,874 lb
    • Beam length: 5'1"
    • Maximum lift above ground: 1'3"
    • Maximum digging depth: 1'8"
    • Number of shanks: 3

*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.