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Manufacturer-sourced values side by side. No performance equivalence or ranking is applied across different machine classes.

FeatureCase 521EXTWheel loaderJohn Deere 444JWheel loader
TypeWheel LoaderWheel Loader
Horsepower88.0 kW88.7 kW
Weight12183.5 kg12088.2 kg
Tipping Capacity7094.2 kg7538.7 kg
Max Speed35.9 km/h37.7 km/h
Engine Model445 TA/EGE4045 H
No Of Cylinders44
AspirationTurbochargedTurbocharged charge air cooled
Displacement4490.1 cc4522.8 cc
Alternator Supplied Amperage70 amps80 amps
Operating Voltage24 V24 V
Rated Speed1800 RPM2200 RPM
Torque Speed1300 RPM1400 RPM
Net Power88.0 kW88.7 kW
Gross Power96.2 kW—
Peak Torque551.8 N-m515.2 N-m
Torque Rise19 %32 %
Fuel Capacity189.3 l246.1 l
Engine Oil Capacity12.1 l17.8 l
Cooling Capacity22.3 l19.3 l
Hydraulic System Capacity114.3 l96.5 l
Transmission Oil Capacity18.9 l18.5 l
Differential Front Capacity21.6 l22.3 l
Differential Rear Capacity21.6 l22.3 l
No of Forward Gears44
No of Reverse Gears33
Rear Axle Oscillation24 °24 °
Max Speed (Forward)35.9 km/h37.7 km/h
Max Speed (Reverse)22.7 km/h25.3 km/h
Pump Flow134.0 LPM140.1 LPM
Relief Pressure249.9 bar248.2 bar
Raise Lift Arms5.6 sec5.5 sec
Lower Lift Time2.7 sec1.9 sec
Bucket Dump Time1.1 sec1.1 sec
Operating Weight12183.5 kg12088.2 kg
Tipping Load7094.2 kg7538.7 kg
Bucket Capacity (Heaped)1.6 m³1.9 m³
Bucket Capacity (Struck)1.4 m³1.6 m³
Bucket Width243.8 cm243.8 cm
Reach At Max Lift And Dump121.9 cm121.9 cm
Dump Clearance At Max Raise274.3 cm274.3 cm
Turning Radius487.7 cm487.7 cm
Wheelbase274.3 cm274.3 cm
Bucket Hinge Pin365.8 cm365.8 cm
Cab Height335.3 cm304.8 cm
Overall Length670.6 cm701.0 cm
Ground Clearance30.5 cm30.5 cm
Width Over Tires243.8 cm—
Tire Size17.5 x 25 L317.5 R25
Transmission Type—Power shift
Pump type—Variable axial piston
Breakout Force—6699.6 kg
Sourceheavyequipments.net archive (imported 2026-10)heavyequipments.net archive (imported 2026-10)
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Side-by-side specification comparisons generated from the manufacturer-sourced model files. · 7,051