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John Deere 644D Specs
John Deere 644D wheel loader specifications: type Wheel Loader, horsepower 115.6 kW, weight 13299.3 kg, tipping capacity 11435.1 kg.
Manufacturer specifications
| Specification | Metric | Imperial |
|---|---|---|
| Type | Wheel Loader | |
| Horsepower | 115.6 kW | 155 hp |
| Weight | 13299.3 kg | 29320 lbs |
| Tipping Capacity | 11435.1 kg | 25210 lbs |
| Max Speed | 43.9 km/h | 27.3 mph |
| Engine Model | 6-466T | |
| No Of Cylinders | 6 | |
| Aspiration | Turbocharged | |
| Displacement | 7636.4 cc | 466 cu in. |
| Alternator Supplied Amperage | 42 amps | |
| Operating Voltage | 12 V | |
| Rated Speed | 2200 RPM | |
| Torque Speed | 1400 RPM | |
| Net Power | 115.6 kW | 155 hp |
| Gross Power | 123.0 kW | 165 hp |
| Peak Torque | 650.8 N-m | 480 lbs ft |
| Fuel Capacity | 253.6 l | 67 gal |
| Engine Oil Capacity | 19.3 l | 5.1 gal |
| Cooling Capacity | 28.0 l | 7.4 gal |
| Hydraulic System Capacity | 95.0 l | 25.1 gal |
| Transmission Oil Capacity | 37.1 l | 9.8 gal |
| Differential Front Capacity | 23.1 l | 6.1 gal |
| Differential Rear Capacity | 23.1 l | 6.1 gal |
| Transmission Type | Power shift | |
| No of Forward Gears | 4 | |
| No of Reverse Gears | 2 | |
| Rear Axle Oscillation | 22 ° | |
| Max Speed (Forward) | 43.9 km/h | 27.3 mph |
| Max Speed (Reverse) | 13.2 km/h | 8.2 mph |
| Pump type | Gear | |
| Pump Flow | 238.5 LPM | 63 GPM |
| Relief Pressure | 181.0 bar | 2625 psi |
| Raise Lift Arms | 6.1 sec | |
| Lower Lift Time | 4.3 sec | |
| Bucket Dump Time | 2 sec | |
| Operating Weight | 13299.3 kg | 29320 lbs |
| Tipping Load | 11435.1 kg | 25210 lbs |
| Bucket Capacity (Heaped) | 2.3 m³ | 3 cu yds |
| Bucket Capacity (Struck) | 1.9 m³ | 2.5 cu yds |
| Bucket Width | 274.3 cm | 108 in |
| Breakout Force | 11081.3 kg | 24430 lbs |
| Reach At Max Lift And Dump | 91.4 cm | 36 in |
| Dump Clearance At Max Raise | 304.8 cm | 120 in |
| Turning Radius | 487.7 cm | 192 in |
| Wheelbase | 304.8 cm | 120 in |
| Bucket Hinge Pin | 396.2 cm | 156 in |
| Cab Height | 304.8 cm | 120 in |
| Overall Length | 701.0 cm | 276 in |
| Ground Clearance | 61.0 cm | 24 in |
| Width Over Tires | 274.3 cm | 108 in |
| Tire Size | 20.5-25 |
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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