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Dozers

D375A-8

Surface mining dozers

  • Horsepower (HP) 609 HP @ 1,800 rpm
  • Horsepower (kW) 455 kW @ 1 800 rpm
  • Operating weight (kg) 74 090
  • Operating weight (lbs) 163,340
  • Blade capacity (m^3) 18.5 - 22.0
  • Blade capacity (yd^3) 24.2 - 28.8

Purchase options

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Strength and performance

Whether you are looking to keep blasting, loading and dump areas clean, or construct and maintain haul roads, dozers have a direct impact on your fleet's productivity. With new mainframes featuring twice the design life over previous models, Komatsu mining dozers are engineered to be powerful and durable.

  • Up to 18% productivity increase over previous models
  • Over 20% more engine power in the reverse direction versus forward direction
  • 10% reduction in fuel consumption with automatic transmission with lockup torque converter compared to operation in manual gearshift mode

Features and benefits

Lockup torque converter

Lockup torque converter

Engineered for exceptional production. Komatsu’s lockup torque converter produces a more efficient transfer of power to the driveline, designed to help decrease cycle times and increase production.

Low undercarriage design

Low undercarriage design

Equipped with a low drive undercarriage designed to help reduce wear and tear on your machine while still delivering comfort and stability. Minimal moving parts to help maintain high levels of traction and production when dozing and ripping.

Structural improvements

Structural improvements

The D375A-8 features a more reliable mainframe with twice the design life over previous models, designed to reduce maintenance costs and machine downtime.

Blade auto-pitch

Blade auto-pitch

Designed to increase dozing efficiency while reducing operator efforts with blade auto-pitch mode.

Ripper auto-return

Ripper auto-return

The new, ergonomic ripper control lever incorporates an auto-return function designed for less fatiguing operation, automatically raising the ripper after momentarily actuating the control lever while the machine is in reverse.

Track shoe slip control

Track shoe slip control

Track shoe slip control automatically controls engine speed and minimizes slip during ripping operation, so your operator doesn’t have to.

Operator comfort

Operator comfort

Designed to maximize operator comfort and productivity with thoughtful design enhancements like an upgraded cab suspension and palm control joysticks.

Single blade linkage

Single blade linkage

Significantly reduced blade side sway with an all-new blade support structure. The new support structure has fewer maintenance points with enhanced visibility over previous models.

Maintenance features

Maintenance features

The D375A-8 is engineered to minimize planned downtime and make maintenance efficient with features such as centralized greasing points, ground-level fill/evac service center and battery and starter isolators with lockout tagout functionality.


Specifications

Metric Imperial (US)
Expand all

  • Ground pressure (kPa): 148
  • Ground pressure (kg/cm^2): 1.51
  • Ground pressure (psi): 21.5
  • Operator weight (approximate): Including strengthened dual tilt Semi-U dozer blade, giant ripper, 24" extreme service shoes, cab, ROPS (ISO 3471), operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.Including Semi-U tilt dozer, giant ripper, cab, ROPS, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.
  • Operating weight

    • Operating weight (kg): 74 090
    • Operating weight (lbs): 163,340
  • Tractor weight

    • Tractor weight (kg): 56 340
    • Tractor weight (lbs): 124,210
    • Tractor weight inclusions: Including rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.

  • Suspension: Oscillating equalizer bar with shoulder pad and pivot shaft
  • Track roller frame: Cylindrical, high-tensile-strength steel construction
  • Rollers and idlers: Lubricated track rollers
  • Type of shoes (standard): Single grouser
  • Number of track rollers (each side): 8
  • Extreme service track shoes: Lubricated tracks. Unique seals prevent entry of foreign abrasives into pin to bushing clearances to provide extended service life. Track tension is easily adjusted with grease gun.
  • Number of shoes (each side): 41
  • Number of carrier rollers (each side): 2
  • Lubricated tracks: Lubricated track rollers are resiliently mounted to the track frame with a bogie suspension system whose oscillating motion is cushioned by rubber pads.
  • Komatsu Bogie (K-Bogie) undercarriage: Lubricated track rollers are resiliently mounted to the track frame with a bogie suspension system whose oscillating motion is cushioned by rubber pads.
  • Grouser height (in): 3.7
  • Grouser height (mm): 93
  • Shoe width (standard)(mm): 610
  • Shoe width (standard)(in): 24
  • Ground contact area (ft2): 52.3
  • Ground contact area (cm^2): 48 560 - 64 480
  • Ground pressure (with standard shoe)(ISO 16754)(psi): 16.5 - 21.5
  • Ground pressure (with standard shoe)(ISO 16754)(kg/cm^2): 1.16 - 1.51
  • Ground pressure (with standard shoe)(ISO 16754)(kpa): 113.7 - 148.3

  • Fuel tank (US gal): 317
  • Fuel tank (L): 1 200
  • Coolant (L): 145
  • Coolant (US gal): 41.5
  • Engine oil (L): 86
  • Engine oil (US gal): 21.1
  • Torque converter, transmission, bevel gear, and steering system (L): 150
  • Torque converter, transmission, bevel gear, and steering system (US gal): 39.6
  • Final drive (L): 65
  • Final drive (US gal): 16.1

  • Transmission features: Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase torque converter with lockup clutch and a planetary gear, multiple-disc clutch transmission which is hydraulically actuated and force-lubricated for optimum heat dissipation. Gearshift lock lever and neutral safety switch prevent accidental starts.
  • Reverse

    • 1st torqflow reverse (kph): 4.6
    • 1st torqflow reverse (mph): 2.9
    • 2nd torqflow reverse (kph): 8.9
    • 2nd torqflow reverse (mph): 5.5
    • 3rd torqflow reverse (mph): 9.8
    • 3rd torqflow reverse (kph): 15.8
    • 3rdL torqflow reverse (kph): 9.7
    • 3rdL torqflow reverse (mph): 6
  • Forward

    • 1st torqflow forward (kph): 3.5
    • 1st torqflow forward (mph): 2.2
    • 2nd torqflow forward (mph): 4.2
    • 2nd torqflow forward (kph): 6.8
    • 3rd torqflow forward (mph): 7.3
    • 3rd torqflow forward (kph): 11.8
    • 3rdL torqflow forward (kph): 8
    • 3rdL torqflow forward (mph): 5

  • Hydraulic system features: Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
  • Hydraulic control unit (U.S. gal/min): All spool control valves externally mounted beside the hydraulic tank. Variable piston pump with capacity (Discharge flow) of 96.7 US gal/min 366 L/min for implement at rated engine rpm.
  • Hydraulic control unit (ltr/min): All spool control valves externally mounted beside the hydraulic tank. Variable piston pump with capacity (Discharge flow) of 96.7 US gpm 366 L/min for implement at rated engine rpm.
  • Relief valve setting (psi): 4,322
  • Relief valve setting (kg/cm^2): 304
  • Relief valve setting (MPa): 29.8
  • Number of cylinders

    • Blade tilt /1 (mm): 200
    • Blade tilt /1 (in): 7.9
    • Blade lift / 2 (in): 5.5
    • Blade lift / 2 (mm): 140
    • Blade tilt / 2 (mm): 200
    • Blade tilt / 2 (in): 7.9
    • Ripper lift (in): 7.9
    • Ripper lift (mm): 200
    • Ripper tilt (mm): 180
    • Ripper tilt (in): 7.1
  • Hydraulic oil capacity (refill)

    • Semi-U dozer or U dozer (L): 130
    • Semi-U dozer or U dozer (US gal): 34.3
    • Positions

      • Blade lift: Raise, hold, lower, and float
      • Blade tilt: Right, hold, and left
      • Rear attachment: Increase, hold, and decrease
      • Ripper lift: Raise, hold, and lower
      • Ripper tilt: Increase, hold, and decrease
  • Ripper equipment (additional volume)

    • Multi-shank ripper (variable)(US gal): 11.9
    • Multi-shank ripper (variable)(L): 45
    • Giant ripper (L): 45
    • Giant ripper (US gal): 11.9
  • Hydraulic cylinders

    • Hydraulic cylinders: Double-acting, piston type

  • Engine Model: Komatsu SAA6D170E-7
  • Dozers type: 4-cycle, water-cooled, direct injection
  • Aspiration: Turbocharged, air-to-air charge air cooler, cooled EGR
  • Number of cylinders: 6
  • Bore x stroke (mm): 170 x 170
  • Bore x stroke (in): 6.69 x 6.69
  • Piston displacement (in^3): 1413
  • Piston displacement (L): 23.15
  • Governor: Mid-range, electronic
  • Footnote: *EPA Tier 4 Final emissions certified
  • Lubrication system

    • Filter: Full-flow
    • Method: Gear pump, force lubrication
  • Horsepower

    • SAEJ1995 - Gross (HP): 636
    • SAEJ1995 - Gross (kW): 474
    • SAEJ1995 - gross - reverse (kW): 578
    • SAEJ1995 - gross - reverse (HP): 775
    • ISO 9249 / SAE J1349 - Net (HP): 609
    • ISO 9249 / SAE J1349 - Gross - Reverse (kW): 558
    • ISO 9249 / SAE J1349 - Net 0 Reverse (HP): 748
    • ISO 9249 / SAE J1349 - Gross (kW): 455
    • Rated RPM: 1800
    • Fan drive type: Hydraulic
    • Net horsepower at the maximum speed of radiator cooling fan - forward (kW): 432
    • Net horsepower at the maximum speed of radiator cooling fan - forward (HP): 580
    • Net horsepower at the maximum speed of radiator cooling fan - reverse (HP): 719
    • Net horsepower at the maximum speed of radiator cooling fan - reverse (kW): 536

  • Final drive features: Double-reduction final drive of spur and planetary gear sets to increase tractive effort and reduce gear tooth stresses for long final drive life. Segmented sprocket teeth are bolt-on for easy replacement.

  • Steering system features: Palm Command Control System (PCCS), joystick controlled, wet multiple-disc steering clutches are spring-loaded and hydraulically released. Wet multiple-disc, pedal/lever controlled steering brakes are spring-actuated hydraulically released and require no adjustment. Steering clutches and brakes are interconnected for easy, responsive steering.
  • Minimum turning radius (in): 165
  • Minimum turning radius (m): 4.2
Metric Imperial (US)
  • Air conditioner with heater and defroster
  • Alternator, 140 Ampere, 24V
  • Auto idle stop system
  • Auto/manual gearshift selectable modes
  • Auto pitch blade control
  • Auto ripper return
  • Back-up alarm
  • Batteries, 2 x 12 V, 160Ah
  • Blade lift cylinder, large capacity
  • Blower cooling fan
  • Canister style breathers
  • Centralized greasing
    - Blade cylinder yoke
    - Ripper
  • Circuit breaker panel w/ push button resets
  • Closed-center load sensing system (CLSS)
  • Cold weather -30C specification
  • Color monitor
  • Concentrated sampling points
  • Decelerator pedal
  • Double wiper for Cab door
  • Dual tilt blade hydraulics
  • Dry-type air cleaner with dust evacuator and dust indicator
  • Eight-roller track frames
  • Electrical dust indicator
  • Engine precleaner w/ above the hood . air intake pipe
  • Engine prelubrication system
  • Exhaust pipe with rain cap
  • Final drive case wear guard
  • Heavy duty DT connectors
  • High altitude arrangement
  • High mount head lights
  • Hinged underguards with front pull hook
  • Horn, warning
  • Hydraulic track adjusters
  • Isolator box, battery and starter
  • Jump start recepticle
  • KOMTRAX Plus® with Iridium/Orbcomm
    • Lighting system
    • Access Lighting
    • Engine room lamp
    • LED lighting package
      - High mount on hood (2)
      - Front fender mount (2)
      - Additional Cab mount (4)
      - Rear fender mount
    • (2) Ripper point light
  • Lunch box holder
  • Maintenance Service Center
  • Mirror, rearview
  • Oil level sensors (Engine & hyd.)
  • PCCS lever steering control
  • Perforated side covers
  • Platform with hand rails and toe boards
  • PM service connectors
  • Radiator, Mesabi (L&M)
  • Radiator reserve tank
  • Radio, AM/FM and AUX
  • Rearview camera
  • ROPS:*
    - Weight: 1,280 lb
    - Width: 6' 5"
    - Height:** 6' 1"
  • Seat Air suspension type, heated and ventilated, fully adjustable, tilt and lumbar
  • Seat belt, 3" retractable
  • Segmented sprockets
  • Starting motors, 24V
  • Steering, clutch and brake
  • Stop system, emergency (2)
  • Swingout radiator fan
  • TORQFLOW transmission, 3F/3R
  • Torque converter with lock-up clutch
  • Track frame, 8 track rollers, 2 carrier rollers
  • Track roller guards
  • Track shoe slip control
  • Two muffler with rain cap
  • Uninterrupted power source for 3rd party system
  • Vandalism protection kit
  • Wet steering clutches
  • Wiggins Drains - Rear Maintenance Service Center for hyd. oil, eng. oil, T/M oil, and eng. coolant
  • Wiggins fast fuel fill

* Meets ISO 3471 standards
** Compartment floor to ceiling

  • Air conditioner with heater and defroster
  • Alternator, 140 Ampere, 24V
  • Auto idle stop system
  • Auto/manual gearshift selectable modes
  • Auto pitch blade control
  • Auto ripper return
  • Back-up alarm
  • Batteries, 2 x 12 V, 160Ah
  • Blade lift cylinder, large capacity
  • Blower cooling fan
  • Canister style breathers
  • Centralized greasing
    - Blade cylinder yoke
    - Ripper
  • Circuit breaker panel w/ push button resets
  • Closed-center load sensing system (CLSS)
  • Cold weather -30C specification
  • Color monitor
  • Concentrated sampling points
  • Decelerator pedal
  • Double wiper for Cab door
  • Dual tilt blade hydraulics
  • Dry-type air cleaner with dust evacuator and dust indicator
  • Eight-roller track frames
  • Electrical dust indicator
  • Engine precleaner w/ above the hood . air intake pipe
  • Engine prelubrication system
  • Exhaust pipe with rain cap
  • Final drive case wear guard
  • Heavy duty DT connectors
  • High altitude arrangement
  • High mount head lights
  • Hinged underguards with front pull hook
  • Horn, warning
  • Hydraulic track adjusters
  • Isolator box, battery and starter
  • Jump start recepticle
  • KOMTRAX Plus® with Iridium/Orbcomm
    • Lighting system
    • Access Lighting
    • Engine room lamp
    • LED lighting package
      - High mount on hood (2)
      - Front fender mount (2)
      - Additional Cab mount (4)
      - Rear fender mount
    • (2) Ripper point light
  • Lunch box holder
  • Maintenance Service Center
  • Mirror, rearview
  • Oil level sensors (Engine & hyd.)
  • PCCS lever steering control
  • Perforated side covers
  • Platform with hand rails and toe boards
  • PM service connectors
  • Radiator, Mesabi (L&M)
  • Radiator reserve tank
  • Radio, AM/FM and AUX
  • Rearview camera
  • ROPS:*
    - Weight: 580 kg
    - Width: 1,967 mm
    - Height:** 1,863 mm
  • Seat Air suspension type, heated and ventilated, fully adjustable, tilt and lumbar
  • Seat belt, 3" retractable
  • Segmented sprockets
  • Starting motors, 22 kW (2 x 11kW)
  • Steering, clutch and brake
  • Stop system, emergency (2)
  • Swingout radiator fan
  • TORQFLOW transmission, 3F/3R
  • Torque converter with lock-up clutch
  • Track frame, 8 track rollers, 2 carrier rollers
  • Track roller guards
  • Track shoe slip control
  • Two muffler with rain cap
  • Uninterrupted power source for 3rd party system
  • Vandalism protection kit
  • Wet steering clutches
  • Wiggins Drains - Rear Maintenance Service Center for hyd. oil, eng. oil, T/M oil, and eng. coolant
  • Wiggins fast fuel fill

* Meets ISO 3471 standards
** Compartment floor to ceiling

Metric Imperial (US)
  • Blade Semi-U Strengthened Dual Tilt
  • Blade Full-U Strengthened Dual Tilt
  • Counterweight: 10,441 lb
  • Extreme service shoes
    - 24"
    - 28"
    - 32"
  • Extreme service shoes w/ extreme cold link assemblies
    - 24"
    - 28"
  • General tool kit
  • Optional tilt cylinder spacer kit
  • Power ladder
  • Short stroke tilt cylinder
  • Spare parts for first service
  • Straight frame assembly, dual tilt, less blade
  • Blade Semi-U Strengthened Dual Tilt
  • Blade Full-U Strengthened Dual Tilt
  • Counterweight: 4,736 kg
  • Extreme service shoes
    - 610 mm
    - 710 mm
    - 810 mm
  • Extreme service shoes w/ extreme cold link assemblies
    - 610 mm
    - 710 mm
  • General tool kit
  • Optional tilt cylinder spacer kit
  • Power ladder
  • Short stroke tilt cylinder
  • Spare parts for first service
  • Straight frame assembly, dual tilt, less blade

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The Komatsu D375A mining dozer is equipped with a low drive undercarriage

Equipped with a low drive undercarriage designed to help reduce wear and tear on your machine while still delivering comfort and stability. Minimal moving parts to help maintain high levels of traction and production when dozing and ripping. Whether you are looking to keep blasting, loading and dump areas clean, or construct and maintain haul roads, dozers have a direct impact on your fleet’s productivity. With new mainframes featuring twice the design life over previous models, the D375A-8 is engineered to be powerful and durable.

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