The Komatsu WA475-11 builds upon the award-winning and popular WA475-10 and adds new features and design refinements that take this workhorse to a new level of operational efficiency. The result is a solid and reliable wheel loader engineered for fuel efficiency, engine power and climbing speed enhancements.
| Model | Komatsu DBA127 |
| Type | Water-cooled, 4-cycle |
| Aspiration | Turbo-charged, after-cooled |
| Number of cylinders | 6 |
| Bore x stroke (mm) | 130 x 160 |
| Piston displacement | 12.74 L |
| Governor | All-speed, electronic |
| Horsepower: | |
| SAE J1995 | Gross 257 kW |
| ISO 14396 | 257 kW |
| ISO 9249/SAE J1349* | Net 256 kW |
| Rated rpm | 1 600 min-1 |
| 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 |
* Net horsepower at the maximum speed of radiator cooling fan is 328 HP (245 kW). U.S, EPA Tier 4 Final and EU Stage V emissions certified.
| Model | Komatsu DBA127 |
| Type | Water-cooled, 4-cycle |
| Aspiration | Turbo-charged, after-cooled |
| Number of cylinders | 6 |
| Bore x stroke (in) | 5.1 x 6.3 |
| Piston displacement | 12.74 L |
| Governor | All-speed, electronic |
| Horsepower: | |
| SAE J1995 | Gross 345 HP |
| ISO 14396 | 345 HP |
| ISO 9249/SAE J1349* | 343 HP |
| Rated rpm | 1,600 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 |
* Net horsepower at the maximum speed of radiator cooling fan is 328 HP (245 kW). U.S, EPA Tier 4 Final and EU Stage V emissions certified.
| Transmission | Hydraulic mechanical planetary type |
| Travel speed: (Measured with 26.5R25 tires) |
|
| Forward | 3.0 - 38.0 km/h |
| Reverse | 3.0 - 28.0 km/h |
| Transmission | Hydraulic mechanical planetary type |
| Travel speed: (Measured with 26.5R25 tires) |
|
| Forward | 3.0 - 38.0 km/h |
| Reverse | 3.0 - 28.0 km/h |
| 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 |
| 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 multiple-disc brakes actuate on four wheels |
| Parking brake | Wet multiple-disc brake |
| Secondary brake | One of dual service brake circuits is commonly used |
| Service brakes | Hydraulically actuated, wet multiple-disc brakes actuate on four wheels |
| Parking brake | Wet multiple-disc brake |
| Secondary brake | One of dual service brake circuits is commonly used |
| Type | Articulated type, full-hydraulic power steering |
| Steering angle | 35° each direction (40° end stop) |
| Minimum turning radius at the center of outside tire | 6 630 mm |
| Type | Articulated type, full-hydraulic power steering |
| Steering angle | 35° each direction (40° end stop) |
| Minimum turning radius at the center of outside tire | 21 ft. 9 in |
| Steering system: | |
| Hydraulic pump | Piston pump |
| Capacity | 157.7 L/min |
| Relief valve setting | 24.5 MPa / 250 kgf/cm² |
| Hydraulic cylinders: | |
| Type | Double-acting, piston type |
| Number of cylinders | 2 |
| Bore x stroke | 95 x 441 mm |
| Loader control: | |
| Hydraulic pump | Piston pump |
| Capacity | 333 L/min |
| Relief valve setting | 35.3 MPa / 360 kgf/cm² |
| Hydraulic cylinders: | |
| Type | Double-acting, piston type |
| Number of cylinders—bore x stroke: | |
| Lift cylinder / 2 | 150 x 764 mm |
| Bucket cylinder / 1 | 180 x 540 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 | 5.7 s |
| Dump | 1.8 s |
| Lower (Empty) | 3.1 s |
| Steering system: | |
| Hydraulic pump | Piston pump |
| Capacity | 157.7 L/min |
| Relief valve setting | 24.5 MPa 250 kgf/cm2 |
| Hydraulic cylinders: | |
| Type | Double-acting, piston type |
| Number of cylinders | 2 |
| Bore x stroke | 3.75 x 17.4 in |
| Loader control: | |
| Hydraulic pump | Piston pump |
| Capacity | 333 L/min |
| Relief valve setting | 35.3 MPa 360 kgf/cm2 |
| Hydraulic cylinders: | |
| Type | Double-acting, piston type |
| Number of cylinders—bore x stroke: | |
| Lift cylinder / 2 | 2-5.9" x 30" |
| Bucket cylinder / 1 | 1-7.1" x 21.25" |
| 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 | 5.7 s |
| Dump | 1.8 s |
| Lower (Empty) | 3.1 s |
| Cooling system | 66 L |
| Fuel tank | 359 L |
| Engine | 41 L |
| Hydraulic system | 132 L |
| Axle front | 56.5 L |
| Axle rear | 56.5 L |
| Transfer case | 40 L |
| DEF tank | 60 L |
| Cooling system | 17.4 US gal |
| Fuel tank | 94.8 US gal |
| Engine | 10.8 US gal |
| Hydraulic system | 34.8 US gal |
| Axle front | 15 US gal |
| Axle rear | 15 US gal |
| Transfer case | 10.6 US gal |
| DEF tank | 15.9 US gal |