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

FeatureCase 721BWheel loaderCaterpillar 938FWheel loader
TypeWheel LoaderWheel Loader
Horsepower101.9 kW104.4 kW
Weight13498.9 kg13031.7 kg
Max Speed35.7 km/h38.0 km/h
Engine Model6 T-830—
Engine Type4 stroke direct injection—
No Of Cylinders6—
AspirationTurbocharged—
Alternator Supplied Amperage65 amps100 amps
Operating Voltage24 V12 V
Rated Speed2100 RPM2200 RPM
Torque Speed1500 RPM—
Net Power101.9 kW104.4 kW
Gross Power113.0 kW111.1 kW
Stroke13.7 cm12.7 cm
Bore11.4 cm10.7 cm
Fuel Capacity204.0 l210.1 l
Engine Oil Capacity21.2 l—
Hydraulic System Capacity153.3 l90.1 l
Differential Front Capacity15.1 l24.2 l
Differential Rear Capacity9.8 l27.3 l
Transmission TypeMechanicalPower shift
No of Forward Gears44
No of Reverse Gears43
Max Speed (Forward)35.7 km/h38.0 km/h
Max Speed (Reverse)22.9 km/h22.0 km/h
Pump typeHydraulic tandem pump—
Pump Flow218.0 LPM163.2 LPM
Raise Lift Arms5.9 sec6 sec
Lower Lift Time4.6 sec2.8 sec
Bucket Dump Time1.8 sec1.4 sec
Operating Weight13498.9 kg13031.7 kg
Bucket Capacity (Heaped)2.1 m³2.5 m³
Bucket Capacity (Struck)1.8 m³2.1 m³
Bucket Width243.8 cm274.3 cm
Breakout Force12532.7 kg—
Wheelbase304.8 cm274.3 cm
Bucket Hinge Pin365.8 cm—
Cab Height335.3 cm304.8 cm
Overall Length701.0 cm—
Ground Clearance30.5 cm30.5 cm
Width Over Tires243.8 cm274.3 cm
Displacement—6600.7 cc
Cooling Capacity—48.1 l
Transmission Oil Capacity—30.3 l
Relief Pressure—24800 Kpa,3600Psi
Tire Size—L-2
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