Specification sheet Wheel Loader Ref john-deere-644eh-wheel-loader
John Deere 644EH
The John Deere 644EH is a wheel loader with an operating weight of 35,306 lb (16,015 kg), a 185 hp engine, and a 3.75 yd³ (2.87 m³) bucket.
✓ QA-verified — every figure checked for unit consistency, physical possibility, and class plausibility; failures withheld → Operating weight
35,306lb
16,015kg
Engine power
185hp
138kW
Net Power Bucket capacity
3.75yd³
2.87m³
◆Where it sits in its classpercentile · small wheel loaders
Among 439 small wheel loaders (22,000–45,000 lb), the John Deere 644EH sits above the median for its class:
- Operating weight 35,310 lb heavier than 67% (n=439)
- Engine power 185 hp more powerful than 67% (n=408)
- Bucket capacity 3.8 yd³ larger-bucket than 70% (n=387)
◇Scale drawingdrawn to scale · mm
01 Engine Specification
| Number Of Cylinders | 6 | |
|---|---|---|
| Engine Make | 2240 | |
| Engine Model | 6076A | |
| Net Power | 185hp | 138kw |
| Gross Power | 193hp | 144kw |
| Power Measured @ | 2200rpm | |
| Max Torque | 520lb ft | 705.1Nm |
| Displacement | 466cu in | 7.7L |
| Torque Measured @ | 1400rpm | |
| Aspiration | Turbocharged |
02 Operational Specification
| Operating Weight | 35306lb | 16015kg |
|---|---|---|
| Fuel Capacity | 75gal | 284L |
| Hydraulic System Fluid Capacity | 30.4gal | 115L |
| Engine Oil Fluid Capacity | 6.4gal | 24L |
| Cooling System Fluid Capacity | 7.6gal | 28.5L |
| Transmission Fluid Capacity | 3.5gal | 13L |
| Front Axle/Diff Fluid Capacity | 6.1gal | 23L |
| Rear Axle/Diff Fluid Capacity | 6.1gal | 23L |
| Static Tipping Weight | 29435lb | 13352kg |
| Turning Radius | 17.8ft in | 5420mm |
| Operating Voltage | 12V | |
| Alternator Supplied Amperage | 65amps | |
| Rear Axle Oscillation | 26degrees | |
| Tire Size | 20.5-25 |
03 Transmission Specification
| Transmission Type | Power Shift | |
|---|---|---|
| Number Of Forward Gears | 4 | |
| Number Of Reverse Gears | 3 | |
| Max Speed - Forward | 25.5mph | 41km/h |
| Max Speed - Reverse | 16.4mph | 26.4km/h |
04 Hydraulic System Specification
| Relief Valve Setting | 2850psi | 19650.1kPa |
|---|---|---|
| Pump Flow Capacity | 65.5gal/min | 248L/min |
| Raise Time | 6.2sec | |
| Dump Time | 1.9sec | |
| Lower Time | 3.5sec | |
| Pump Type | Gear |
05 Bucket Dimensions
| Dump Clearance At Max Raise | 9.56ft in | 2911mm |
|---|---|---|
| Bucket Capacity - Heaped | 3.75yd3 | 2.87m3 |
| Bucket Capacity - Struck | 3.16yd3 | 2.42m3 |
| Bucket Width | 9.52ft in | 2900mm |
| Breakout Force | 34257lb | 152.4kN |
06 Dimensions Dimensions
| Ground Clearance | 1.65ft in | 500mm |
|---|---|---|
| Length With Bucket On Ground | 25.76ft in | 7850mm |
| Width Over Tires | 8.96ft in | 2729mm |
| Height To Top Of Cab | 11.16ft in | 3400mm |
| Wheelbase | 10.5ft in | 3200mm |
| Hinge Pin - Max Height | 13.16ft in | 4010mm |
| Reach At Max Lift And Dump | 3.3ft in | 1003mm |
Method. Figures are manufacturer reference specifications, not measurements. Every value is checked for unit consistency, physically possible magnitude, and plausibility for its equipment class before publication; figures that fail any check are withheld rather than shown, and figures reconstructed from related data are marked above. Imperial and metric figures are reproduced as published, except where a note states otherwise.