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John Deere 644H Specs
John Deere 644H wheel loader specifications: type Wheel Loader, horsepower 134.2 kW, weight 22965.4 kg, tipping capacity 14905.0 kg.
Manufacturer specifications
| Specification | Metric | Imperial |
|---|---|---|
| Type | Wheel Loader | |
| Horsepower | 134.2 kW | 180 hp |
| Weight | 22965.4 kg | 50630 lbs |
| Tipping Capacity | 14905.0 kg | 32860 lbs |
| Max Speed | 27.5 km/h | 17.1 mph |
| Engine Model | 6081 H | |
| No Of Cylinders | 6 | |
| Aspiration | Turbocharger with Aftercooler | |
| Displacement | 8128.0 cc | 496 cu in. |
| Alternator Supplied Amperage | 55 amps | |
| Operating Voltage | 24 V | |
| Rated Speed | 2200 RPM | |
| Torque Speed | 1300 RPM | |
| Net Power | 134.2 kW | 180 hp |
| Gross Power | 152.9 kW | 205 hp |
| Peak Torque | 1010.1 N-m | 745 lbs ft |
| Fuel Capacity | 340.7 l | 90 gal |
| Engine Oil Capacity | 25.4 l | 6.7 gal |
| Cooling Capacity | 29.1 l | 7.7 gal |
| Hydraulic System Capacity | 117.3 l | 31 gal |
| Transmission Oil Capacity | 26.1 l | 6.9 gal |
| Differential Front Capacity | 27.3 l | 7.2 gal |
| Differential Rear Capacity | 27.3 l | 7.2 gal |
| Transmission Type | Power shift | |
| No of Forward Gears | 3 | |
| No of Reverse Gears | 3 | |
| Rear Axle Oscillation | 18 ° | |
| Max Speed (Forward) | 27.5 km/h | 17.1 mph |
| Max Speed (Reverse) | 28.6 km/h | 17.8 mph |
| Pump type | Piston pump | |
| Pump Flow | 257.4 LPM | 68 GPM |
| Relief Pressure | 248.2 bar | 3600 psi |
| Raise Lift Arms | 6.2 sec | |
| Lower Lift Time | 3 sec | |
| Bucket Dump Time | 1.4 sec | |
| Operating Weight | 22965.4 kg | 50630 lbs |
| Tipping Load | 14905.0 kg | 32860 lbs |
| Bucket Capacity (Heaped) | 3.8 m³ | 5 cu yds |
| Bucket Capacity (Struck) | 3.4 m³ | 4.4 cu yds |
| Bucket Width | 335.3 cm | 132 in |
| Breakout Force | 17059.6 kg | 37610 lbs |
| Reach At Max Lift And Dump | 182.9 cm | 72 in |
| Dump Clearance At Max Raise | 396.2 cm | 156 in |
| Turning Radius | 548.6 cm | 216 in |
| Wheelbase | 304.8 cm | 120 in |
| Bucket Hinge Pin | 457.2 cm | 180 in |
| Cab Height | 335.3 cm | 132 in |
| Overall Length | 823.0 cm | 324 in |
| Ground Clearance | 61.0 cm | 24 in |
| Width Over Tires | 274.3 cm | 108 in |
| Tire Size | 23.5-25 |
Source: heavyequipments.net archive (imported 2026-10). Values may vary by variant and production year; seller claims are shown separately on the listing page.
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