2025 Komatsu Dozers D51PX-24

Information

2025 Komatsu Dozers D51PX-24

An all-around dozer that delivers

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.

Features may include:

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
  • 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.

Photos

Highlights

  • Bushnell, Florida
  • 2025
  • Komatsu
  • Dozers D51PX-24
  • Model: SAA4D107E-3 | Fan drive type: Hydraulic
  • Dual-path, hydrostatic transmission provides infinite speed changes up to 5.6 mph. The variable capacity travel motors allow the operator to select the optimum speed to match specific jobs. Travel control lock lever and neutral switch. | Travel speed (quick shift mode)* Forward: 1st: 0–2.1 mph / 2nd: 0–3.5 mph / 3rd: 0–5.6 mph/ Travel speed (variable mode): 0–5.6 mph | Travel speed (quick shift mode)* Reverse: 1st: 0–2.5 mph / 2nd: 0–4.0 mph / 3rd: 0–5.6 mph/ Travel speed (variable mode): 0–5.6 mph
  • Available
  • Shoe width (standard): 28 in
  • Grouser: 2.2 in

Specifications

  • 2025
  • Komatsu
  • Dozers
  • D51PX-24
  • Small
  • Model: SAA4D107E-3 | Fan drive type: Hydraulic
  • Komatsu
  • 4-cycle, water-cooled, direct injection
  • Variable geometry, water-cooled, turbocharged, air-to-air aftercooled
  • 4
  • Hydraulic Number of cylinders: Bore (Blade lift/2: 3.5 in / Blade tilt/1: 4 in / Blade angle/2: 3.5 in)
  • 4.88 in
  • Piston: 275 in³
  • SAE J1995 - Gross: 133 HP | ISO 9249 / SAE J1349 - Net: 131 HP | Hydraulic fan at maximum speed - Net: 122 HP
  • 2,200 rpm
  • Method: Gear pump, force lubrication | Filter: Full-flow
  • All-speed, electronic
  • Dual-path, hydrostatic transmission provides infinite speed changes up to 5.6 mph. The variable capacity travel motors allow the operator to select the optimum speed to match specific jobs. Travel control lock lever and neutral switch. | Travel speed (quick shift mode)* Forward: 1st: 0–2.1 mph / 2nd: 0–3.5 mph / 3rd: 0–5.6 mph/ Travel speed (variable mode): 0–5.6 mph | Travel speed (quick shift mode)* Reverse: 1st: 0–2.5 mph / 2nd: 0–4.0 mph / 3rd: 0–5.6 mph/ Travel speed (variable mode): 0–5.6 mph
  • 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.
  • 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.
  • Rigid type
  • (with dozer, ROPS cab): 4.66 psi
  • control unit: All spool control valves externally mounted remote to the hydraulic tank. Piston-type hydraulic pump with capacity (discharge flow) of 26 U.S. gal/min at rated engine rpm. | cylinders: Double-acting, piston type | Control valves: 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 Positions: Ripper lift: Raise, hold and lower
  • Relief valve setting: 3,983 psi
  • Track roller frame: Monocoque, large section, durable construction
  • Ground contact area: 6,042 in²
  • Minimum: 102 in
  • Grouser: 2.2 in
  • Shoe width (standard): 28 in
  • Track gauge: 6 ft. 2 in
  • of track on ground: 9 ft. 0 in
  • 9.8 US gal
  • tank: 71.3 US gal | Final drive (each side): 1.5 US gal | Diesel Exhaust Fluid (DEF) tank: 5.42 US gal
  • Engine: 4.2 US gal
  • tank: 17 US gal | oil capacity (refill): Power angle tilt dozer 17 US gal
  • Tractor: Including ROPS cab, U frame for Power Angle Tilt (PAT) dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment. : 27,668 lbs.
  • Operating: Including Power Angle Tilt (PAT) dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, hydraulic control unit, coolant, and full fuel tank.: 31,438 lbs.
  • Rollers and idlers: Lubricated track rollers | Sealed and lubricated track: Track tension easily adjusted w/grease gun | Number of track rollers (each side): 7 | Type of shoes (standard): Single grouser | Number of shoes (each side): 44