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

FeatureJohn Deere 644K HybridWheel loaderCaterpillar 950HWheel loader
TypeWheel LoaderWheel Loader
Weight18343.3 kg18343.3 kg
Engine ModelPowerTech PSX 6068Cat? C7 ACERT?
Displacement6800.6 cc7193.9 cc
Alternator100 amps—
Torque Rise19 %—
Fuel Capacity397.1 l314.2 l
Hydraulic Tank106.4 l109.8 l
Transmission Oil Capacity38.2 l34.1 l
Differential Front Capacity22.3 l36.0 l
Differential Rear Capacity22.3 l36.0 l
Transmission TypePower shiftPower shift
Operating Weight18343.3 kg18343.3 kg
Reach At Max Lift And Dump152.4 cm121.9 cm
Wheelbase335.3 cm335.3 cm
Bucket Hinge Pin426.7 cm396.2 cm
Overall Length823.0 cm792.5 cm
Ground Clearance46.1 cm30.5 cm
Width Over Tires274.3 cm274.3 cm
Horsepower—146.9 kW
Tipping Capacity—12464.7 kg
Max Speed—37.0 km/h
No Of Cylinders—6
Alternator Supplied Amperage—80 amps
Operating Voltage—24 V
Rated Speed—1800 RPM
Net Power—146.9 kW
Gross Power—161.8 kW
Peak Torque—907.0 N-m
Stroke—12.7 cm
Bore—11.2 cm
Engine Oil Capacity—29.9 l
Crankcase—29.9 l
Cooling Capacity—41.6 l
Hydraulic System Capacity—109.8 l
No of Forward Gears—4
No of Reverse Gears—4
Brakes—Meets required standards.
Rear Axle Oscillation—26 °
Max Speed (Forward)—37.0 km/h
Max Speed (Reverse)—40.1 km/h
Pump type—Piston
Pump Flow—268.8 LPM
Relief Pressure—68.9 bar
Raise Lift Arms—6.2 sec
Lower Lift Time—2.5 sec
Bucket Dump Time—1.3 sec
Tipping Load—12464.7 kg
Bucket Capacity (Heaped)—3.1 m³
Bucket Capacity (Struck)—2.7 m³
Bucket Width—304.8 cm
Breakout Force—16841.9 kg
Dump Clearance At Max Raise—304.8 cm
Turning Radius—701.0 cm
Cab Height—335.3 cm
Tire Size—23.5 R25
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