Description:
Serial Number Information
The serial number plate is typically found on the frame near the front right-hand side of the loader chassis or engine compartment access.
Always reference your serial number when sourcing parts for accurate fitment across WA450 variants.
Key Specifications
| Feature |
Specification |
| Engine Model |
Komatsu SA6D125E-3, 6-cylinder turbocharged diesel |
| Displacement |
11.04L (674 cu in) |
| Net Power |
261 HP (195 kW) |
| Torque |
872 lb-ft @ 1,400 RPM |
| Fuel Tank Capacity |
100 gallons (378.5 liters) |
| Operating Weight |
46,200 lbs (20,956 kg) |
Transmission
| Feature |
Specification |
| Type |
Powershift |
| Gears |
4 forward, 3 reverse |
| Max Forward Speed |
21.1 mph (34 km/h) |
| Max Reverse Speed |
23.6 mph (38 km/h) |
Hydraulics
| Feature |
Specification |
| System Flow |
71.3 GPM (270 LPM) |
| Operating Pressure |
3,500 psi (241 bar) |
Performance & Bucket Specs
| Feature |
Specification |
| Bucket Capacity |
5.0 – 6.8 yd³ (3.8 – 5.2 m³) |
| Dump Clearance |
10.7 ft (3.26 m) |
| Breakout Force |
42,500 lbs (19,278 kg) |
Tires
| Feature |
Specification |
| Tire Size |
26.5-25 |
Key Features
Heavy-Duty Engine Power
The SA6D125E-3 engine delivers 261 HP and 872 lb-ft of torque, offering the strength and durability needed for high-production loading.
Versatile Bucket Configurations
Capable of handling up to 6.8 cubic yards, this loader excels in material transport, aggregate loading, and high-volume earthmoving.
Smooth Powershift Transmission
The 4F/3R powershift transmission allows efficient gear transitions under load, minimizing operator fatigue and enhancing fuel economy.
High-Capacity Hydraulics
With 71.3 GPM hydraulic flow at 3,500 psi, the WA450 provides fast lift and dump cycles, critical in repetitive load-and-carry applications.
Common Replacement Parts
Maintain top performance with essential components available at Broken Tractor:
Engine Components
Air and fuel filters, turbochargers, water pumps, injectors
Transmission
Clutch packs, gears, seals, shift solenoids
Hydraulic System
Hydraulic pump, hoses, lift and tilt cylinders, control valves
Brake System
Disc brakes, master cylinder, brake calipers, lines
Electrical
Starters, alternators, relays, wiring harnesses, sensors
Maintenance Schedule
| Task |
Recommended Interval |
| Engine Oil & Filter |
Every 250 hours |
| Fuel & Air Filter Service |
Every 250 hours |
| Hydraulic Fluid & Filter |
Every 500 hours |
| Transmission Fluid Change |
Every 1,000 hours |
| Brake System Inspection |
Monthly or every 100 hours |
| Cooling System Flush |
Annually or 1,000 hours |