• 74,626 - 75,453 lbs Operating Weight
  • 353 @1900 rpm Horsepower
  • 6.8 - 8.2 yd¬≥ Bucket Capacity


Need a Tier 4 interim loader with the power to dig virgin material and still have the speed to load a string of on-highway trucks or load and carry? The WA500-7 is the answer to that question. The Large capacity torque converter and power engine mode provide high tractive effort for filling the bucket. Torque converter lock-up, top speed of 23.2 mph and ergonomic pilot controls provide speed and easy operation.

WA500-7 Walkaround  >


Dual-Mode Engine Power Select System

This wheel loader offers two selectable operating modes — E and P.

E Mode:

This mode provides maximum fuel efficiency for general loading.

P Mode:

This mode provides maximum power output for hard digging operations or hill climb applications.

Electronically Controlled Suspension System

The Electronically Controlled Suspension System (ECSS) or ride control system uses an accumulator which absorbs some of the shock in the boom arm, giving the operator a much smoother ride. This reduces operator fatigue and reduces material spillage during load and carry operations. ECSS is speed sensitive, meaning that the boom won’t move during stationary digging. ECSS is standard on the WA500-7.

Enhanced Lock-Up

The large-capacity torque converter with lock-up is standard on the WA500-7. The lock-up function activates in 2nd, 3rd and 4th gears to give the loader a maximum travel speed of 37.3 km/h 23.2 mph. The large capacity torque converter with enhanced lock-up 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 lock-up combined with Komatsu SmartLoader Logic results in lower fuel consumption and higher travel speeds in load and carry and even some cycle loading applications.

Full Side-Opening Gull-Wing Engine Doors

The large gull-wing type engine doors are operated with low effort assisted by gas springs. The doors open in two steps. The first position is for daily maintenance and the second position is for periodic maintenance. Large steps are provided on each side of the frame to help access.

Komatsu SmartLoader Logic

The WA500-7 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 WA500-7 power train has a large capacity torque converter for optimum efficiency. The WA500-7 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 WA500-7 to up-shift gears faster because of improved acceleration. The WA500-7 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.

Low Fuel Consumption

Komatsu added many new features on the WA500-7 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.

Operator Seat with EPC 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.

Swing Out Fan

The large capacity cooling unit features a wider spacing of the cooling fins to reduce clogging. The hydraulic driven cooling fan can be opened for cleaning.

Variable Displacement Piston Pump and 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, 24° 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
Emergency brake Parking brake is commonly used


Model Komatsu SAA6D140E-6*
Type Water-cooled, 4-cycle
Aspiration Turbo-charged, after-cooled, cooled EGR
Number of cylinders 6
Bore x Stroke 5.51" x 6.50" 140 mm x 165 mm
Piston displacement 930 in³ 15.24 ltr
Govenor All-speed, electronic
SAE J1995 - Gross 357 HP 266 kW
ISO 9249 / SAE J1349 - Net 353 HP 263 kW
Rated rpm 1900 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 at rated rpm 31.7 U.S. gal/min 120 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 3.9" x 19.1" 100 mm x 486 mm
Loader control:
Hydraulic pump Piston pump
Capacity at rated rpm 84.8 U.S gal/min 320 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: Bore x Stroke:
Boom cylinder / 2 6.3" x 35.4" 160 mm x 898 mm
Bucket cylinder / 1 7.3" x 26.6" 185 mm x 675 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 7.2 sec
Dump 1.7 sec
Lower (Empty) 4.2 sec

Service Refill Capacities

Cooling system 35.1 U.S. gal 133 ltr
Fuel tank 124.9 U.S. gal 473 ltr
Engine 9.8 U.S. gal 37 ltr
Hydraulic system 89.0 U.S. gal 337 ltr
Axle (each front and rear) 25.1 U.S. gal 95 ltr
Torque converter and transmission 18.8 U.S. gal 71 ltr

Steering System

Type Articulated type, fully-hydraulic power steering
Steering angle 36° (40° to max end stop)
Minimum turning radius at the center of outside tire 23' 2" 7050 mm


Torque converter 3-elements, 1-stage, 2-phase
Transmission Full-powershift, planetary type
Travel speed: (Measured with 23.5-25 tires) Forward Reverse
1st gear 4.7 mph
7.5 km/h
5.3 mph
8.5 km/h
2nd gear 8.0 mph
12.9 km/h
8.0 mph
12.9 km/h
2nd gear (Lock-up clutch ON) 8.1 mph
13.1 km/h
8.1 mph
13.0 km/h
3rd gear 13.8 mph
22.2 km/h
15.3 mph
24.7 km/h
3rd gear (Lock-up clutch ON) 14.7 mph
23.7 km/h
16.5 mph
26.6 km/h
4th gear 22.1 mph
35.5 km/h
23.6 mph
38.0 km/h
4th gear (Lock-up clutch ON) 23.2 mph
37.3 km/h
23.6 mph
38.0 km/h


  • 2-spool valve for boom and bucket control
  • Alternator, 90 A
  • Auto shift tranmission with mode select system
  • Automatic hydraulic-driven fan with automatic reverse rotation
  • Back-up alarm
  • Batteries, 160 Ah/12 V (2)
  • 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 SAA6D140E-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
  • 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, 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
  • Radiator, wider core
  • Radiator mask, lattice type
  • Rear view mirrors, outside (2) inside (2)
  • Rims for 29.5-25 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, front with intermittent
  • --Windshield washer and wiper, rear
  • Service brakes, wet disc type
  • Starting motor, 11 kW
  • Transmission, 4 forward and 4 reverse
  • Vandalism protection kit, padlocks for battery (2)


  • Auxiliary steering (SAE)
  • Limited slip differential (F&R)