• 52,007 - 53,308 lbs Operating Weight
  • 272 @2000 rpm Horsepower
  • 5 - 5.75 yd¬≥ Bucket Capacity


The WA470-7 scores high marks for economy and power at the same time. Komatsu’s Tier 4 interim technology ensures that the engine runs efficiently and saves fuel over the previous model. Selectable economy or power engine modes and SmartLoader Logic make sure the WA470-7 can be operated in the most efficient way. A large capacity torque converter with lock-up gives the WA470-7 tremendous power in the pile for filling the bucket and speed to climb ramps.

WA470-7 Walkaround  >



The Eco-guidance provides information on the monitor to help save fuel. The monitor displays messages in real-time during operation and on the exit screen when turning the key to shut off the engine. This function can be controlled through the monitor. The operator can view Eco-guide and fuel consumption through the monitor as well as through KOMTRAX.

Enhanced Lock-Up

The newly designed large-capacity torque converter with lock-up is standard on the WA470-7. The lock-up function activates in 2nd, 3rd and 4th gears to give the loader a maximum travel speed of 38.3 km/h 23.8 mph. The large capacity torque converter with enhanced lockup is effective for both load and carry applications, and V-shape loading which uses lower gears. The enhanced lock-up reduces the clutch engagement shock by controlling engine torque with Komatsu SmartLoader Logic improving operator comfort. The enhanced lockup combined with Komatsu SmartLoader Logic results in lower fuel consumption and higher travel speeds in load and carry and even some cycle loading applications.  

Komatsu SmartLoader Logic

The WA470-7 provides Komatsu SmartLoader Logic, a new engine control system. This technology acquires data from various sensors in the vehicle and controls the engine to yield enough torque for each work phase. Engine torque requirements for a wheel loader vary depending on working conditions. For example, the loader requires higher torque for digging in V-shape loading, but less torque when traveling with an empty bucket. This technology limits the engine torque during less demanding work, therefore saving fuel. Komatsu SmartLoader Logic functions automatically and doesn’t interfere with operation, saving fuel without decreasing production.

Large-Capacity Torque Converter

The newly designed power train has a large capacity torque converter for optimum efficiency. The WA470-7 has greater productivity in V-shape loading applications because the increased tractive effort does not require full throttle. The improved hill climbing ability allows the WA470-7 to up-shift gears faster because of improved acceleration. The WA470-7 can achieve higher gear ranges and maintain higher travel speed when working in load-and-carry applications. In most applications, production is increased and fuel consumption is reduced, resulting in improved fuel efficiency.

Large LCD Monotor

The LCD monitor displays various information of the machine such as ECO Guidance, operation records, and maintenance information. Since the LCD unit has a wide full color display area, it displays more information and is easy to read. For example, the “Operation Records” menu displays various records of the actual working hours, average fuel consumption, idling hours, and E mode operation ratio, as well as other features. These records are displayed in the form of daily data and time period data. Data can be displayed in 25 languages to support operators around the world. The controls for the automatic air conditioner are integrated into the LCD monitor panel to allow the operator to easily and precisely set the cab atmosphere. The monitor clearly displays abnormality codes to alert the operator. These codes are stored for trouble shooting. The monitor also provides for advanced monitoring of system parameters through the Service Mode to aid in troubleshooting and reduce downtime.

Low Fuel Consumption

Komatsu added many new features on the WA470-7 to reduce fuel consumption. These features enable further fuel efficiency by optimally controlling engine power and matching the Komatsu designed and produced high efficiency power train components and hydraulic system.

New Mono Lever With Integrated 3rd Spool Control

The mono lever option has been redesigned for better ergonomics. When equipped with the optional 3rd spool valve, it allows the operator to control the 3rd spool with your thumb providing greatly improved operator comfort. The 3rd spool valve can be operated in either continuous or proportional flow modes. The mono lever also includes a F-N-R switch. 

Operator Seat with EPC (Electronic Pilot Control) Levers

The work equipment control system has an EPC lever console integrated into the higher capacity seat and moves with the seat. The angle of the armrest is fully adjustable for optimum operator comfort. An F-N-R switch is now incorporated in dual and three lever configurations as well as the optional monolever configurations. A heated seat is now standard.

Rear View Monitoring System

The operator can view the rear of the machine with a full color monitor that is located on the right side of the cab. This monitor can be always on or only on when the loader goes into reverse. Visual guidelines can also be added for more convenience.

Remote Bucket and Boom Positioner

The operator can set the bucket angle and remote boom positioner from the cab. Both upper and lower boom positions are adjustable in the cab with the push of a button. The bucket positioner can memorize three horizontal settings, allowing the operator to easily change attachments without having to reset the bucket position. In each horizontal setting, the operator can adjust the setting with the switch in the cab. This can help save the operator time when changing attachments.

Swing-out Type Cooling Fan

The cooling fan swings out for cleaning. The coolers feature wider spacing of the cooling fins to reduce clogging.

Variable Displacement Piston Pump & CLSS

The variable displacement piston pump combined with the Closed-center Load Sensing System (CLSS) delivers as much hydraulic flow as the job requires, preventing wasted hydraulic flow. Minimized loss contributes to better fuel economy.


Axles and Final Drives

Drive system Four-wheel drive
Front Fixed, semi-floating
Rear Center-pin support, semi-floating, 26° total oscillation
Reduction gear Spiral bevel gear
Differential gear Conventional type
Final reduction gear Planetary gear, single reduction


Service brakes Hydraulically actuated, wet disc brakes actuate on four wheels
Parking brake* Wet disc brake
*May be used in an emergency


Model Komatsu SAA6D125E-6*
Type Water-cooled, 4-cycle
Aspiration Turbo-charged, after-cooled, cooled EGR
Number of cylinders 6
Bore x stroke 4.9" x 5.9" 125 mm x 150 mm
Piston displacement 674 in³ 11.04 ltr
Governor all-speed, electronic
SAE J1995 - Gross 273 HP 204 kW
ISO 9249/SAE J1349 - Net 272 HP 203 kW
Rated rpm 2000 rpm
Fan drive method for radiator cooling Hydraulic
Fuel system Direct injection
Lubrication system:
Method Gear pump, force-lubrication
Filter Full-flow type
Air cleaner Dry type with double elements and dust evacuator, plus dust indicator
*EPA Tier 4 Interim and EU stage 3B emissions certified

Hydraulic System

Steering system:
Hydraulic pump Piston pump
Capacity 51.5 U.S. gal/min 195 ltr/min
Relief valve setting 3,555 psi 24.5 MPa / 250 kgf/cm²
Hydraulic cylinders:
Type Double-acting, piston type
Number of cylinders 2
Bore x stroke 3.5" x 17.3" 90 mm x 441 mm
Loader control:
Hydraulic pump Piston pump
Capacity 68.7 U.S. gal/min 260 ltr/min
Relief valve setting 4,980 psi 34.3 MPa / 350 kgf/cm²
Hydraulic cylinders:
Type Double-acting, piston type
Number of cylinders—bore x stroke:
Boom cylinder — 2 5.5" x 30.0" 140 mm x 764 mm
Bucket cylinder — 1 6.3" x 22.6" 160 mm x 575 mm
Control valve 2-spool type
Control positions:
Boom Raise, hold, lower, and float
Bucket Tilt-back, hold, and dump
Hydraulic cycle time (rated load in bucket)
Raise 6.1 s
Dump 1.6 sec
Lower (Empty) 3.1 sec

Service Refill Capacities

Cooling system 21.1 U.S. gal 80 ltr
Fuel tank 100.4 U.S. gal 380 ltr
Engine 10.0 U.S. gal 38 ltr
Hydraulic system 42.1 U.S. gal 160 ltr
Axle front 15.1 U.S. gal 57 ltr
Axle rear 14.8 U.S. gal 56 ltr
Torque converter and transmission 17.2 U.S. gal 65 ltr

Steering System

Type Articulated type, full-hydraulic power steering
Steering angle 35° each direction (40° to max end stop)
Minimum turning radius at the center of outside tire 21'9" 6630 mm


Torque converter: 3-elements, 1-stage, 2-phase
Transmission Automatic full-powershift, countershaft type
Travel speed: (Measured with 26.5-25 tires) Forward Reverse
1st 4.7 mph
7.6 km/h
4.9 mph
7.9 km/h
2nd 8.1 mph
13.1 km/h
8.4 mph
13.5 km/h
2nd (Lock-up clutch ON) 8.2 mph
13.2 km/h
8.5 mph
13.7 km/h
3rd 14.2 mph
22.9 km/h
14.7 mph
23.6 km/h
3nd (Lock-up clutch ON) 14.7 mph
23.6 km/h
15.1 mph
24.3 km/h
4th 22.5 mph
36.2 km/h
23.2 mph
37.3 km/h
4nd (Lock-up clutch ON) 23.8 mph
38.3 km/h
24.2 mph
39.0 km/h


  • 2-spool valve for boom and bucket control
  • Alternator, 50 A
  • Auto shift tranmission with mode select system
  • Automatic hydraulic-driven fan with automatic reverse rotation
  • Back-up alarm
  • Batteries, 140 Ah/12V (2), 930 CCA
  • Battery disconnect
  • Boom Kick-out, in-cab adjustable
  • Bucket Positioner, in-cab adjustable, 3 positions
  • Color rear view camera and monitor
  • Counterweight, standard and additional
  • Electronically Controlled Suspension System (ECSS)
  • Engine, Komatsu SAA6D125E-6 diesel
  • Engine shut-off system, electric
  • EPC fingertip controls with F-N-R switch, two levers
  • Equipment Management Monitoring System (EMMS)
  • - Lights (central warning, brake oil pressure, engine oil pressure, parking brake, cooling fan reverse, KDPF restriction, seat belt caution, Komtrax message)
  • - Gauges (Engine water temperature, ECO, Fuel level, Hydraulic oil temperature, speedometer/tachometer)
  • Front fenders
  • Front window washer and wiper, intermittent
  • Fuel pre-filter with water separator
  • Horn, electric
  • Komatsu SmartLoader Logic
  • Komatsu Auto Idle Shutdown
  • KOMTRAX® Level 4
  • Lift cylinders and bucket cylinder
  • Lights
  • - Back-up light, LED
  • - Stop and tail light, LED
  • - Turn signal lamps, 2 front and 2 rear with hazard switch
  • - Working lights, halogen, 2 front cab mount
  • - Working lights, halogen, 2 front fender mount
  • - Working lights, halogen, 2 rear grill mount
  • Loader linkage with standard lift arm
  • Lock-up torque converter
  • Parking brake, electric
  • Radiator, wider core
  • Radiator mask, swing out
  • Rear view mirrors, outside (2) inside (2)
  • Rims for 23.5-25 tires
  • ROPS/FOPS Cab Level 2
  • - 2 x DC12V electrical outlets
  • - Ashtray
  • - Auto air conditioner
  • - Cigarette lighter
  • - Color LCD/TFT multi-monitor
  • - Cup holder
  • - Floor mat
  • - Operator seat, reclining, air suspension type, heated
  • - Radio, AM/FM with AUX input jack
  • - Rear defroster, electric
  • - Seatbelt, 2-point retractable, 76mm / 3" width
  • - Space for Lunch box
  • - Steering wheel, tilt and telescopic
  • - Sun visor, front window
  • - Windshield washer and wiper, rear
  • Service brakes, wet disc type
  • Starting motor, 7.5 kW
  • Transmission, 4 forward and 4 reverse
  • Vandalism protection kit, padlocks for battery box (2)


  • 3-spool valve with lever and piping
  • Auxiliary steering (SAE)
  • Cutting edge (bolt-on type)
  • Engine pre-cleaner with extension
  • High-lift boom
  • Joystick/wheel steering control system
  • Limited slip differential (F&R)
  • Monolever loader control with transmission F-N-R switch
  • Rear full fenders
  • Various tire options, radial and bias
  • Various bucket options