SPECS / COMPARISON
John Deere 644H High Lift vs Caterpillar 938H
A detailed comparison of the John Deere 644H High Lift and the Caterpillar 938H. Click a model name to view its full specifications.
Horsepower
John Deere 644H High Lift134.2 kW (180 hp)
Caterpillar 938H134.2 kW (180 hp)
Weight
John Deere 644H High Lift17690.1 kg (39000 lbs)
Caterpillar 938H15054.7 kg (33190 lbs)
Operating Weight
John Deere 644H High Lift17690.1 kg (39000 lbs)
Caterpillar 938H15054.7 kg (33190 lbs)
| Specification | John Deere 644H High Lift Wheel Loaders | Caterpillar 938H Wheel Loaders |
|---|---|---|
| Type | Wheel Loader | Wheel Loader |
| Horsepower | 134.2 kW (180 hp) | 134.2 kW (180 hp) |
| Weight | 17690.1 kg (39000 lbs) | 15054.7 kg (33190 lbs) |
| Tipping Capacity | 11249.1 kg (24800 lbs) | 11589.3 kg (25550 lbs) |
| Max Speed | 38.6 km/h (24 mph) | 43.1 km/h (26.8 mph) |
| Engine Model | 6081 H | 6.6 ACERT |
| No Of Cylinders | 6 | 6 |
| Aspiration | Turbocharged with Aftercooler | — |
| Displacement | 8128.0 cc (496 cu in.) | 6600.7 cc (402.8 cu in.) |
| Alternator Supplied Amperage | 55 amps | 80 amps |
| Operating Voltage | 24 V | 24 V |
| Rated Speed | 2200 RPM | 2200 RPM |
| Torque Speed | 1300 RPM | — |
| Net Power | 134.2 kW (180 hp) | 134.2 kW (180 hp) |
| Gross Power | 152.9 kW (205 hp) | 146.9 kW (197 hp) |
| Peak Torque | 1010.1 N-m (745 lbs ft) | 840.6 N-m (620 lbs ft) |
| Fuel Capacity | 340.7 l (90 gal) | 247.2 l (65.3 gal) |
| Engine Oil Capacity | 25.4 l (6.7 gal) | 17.4 l (4.6 gal) |
| Cooling Capacity | 29.1 l (7.7 gal) | 36.0 l (9.5 gal) |
| Hydraulic System Capacity | 117.3 l (31 gal) | 89.0 l (23.5 gal) |
| Transmission Oil Capacity | 26.1 l (6.9 gal) | 43.2 l (11.4 gal) |
| Differential Front Capacity | 27.3 l (7.2 gal) | 57.2 l (15.1 gal) |
| Differential Rear Capacity | 27.3 l (7.2 gal) | 53.0 l (14 gal) |
| Transmission Type | Power shift | Power shift |
| No of Forward Gears | 4 | 4 |
| No of Reverse Gears | 3 | 3 |
| Rear Axle Oscillation | 26 ° | 24 ° |
| Max Speed (Forward) | 38.6 km/h (24 mph) | 43.1 km/h (26.8 mph) |
| Max Speed (Reverse) | 26.4 km/h (16.4 mph) | 25.4 km/h (15.8 mph) |
| Pump type | Piston pump | Piston |
| Pump Flow | 257.4 LPM (68 GPM) | 294.9 LPM (77.9 GPM) |
| Relief Pressure | 248.2 bar (3600 psi) | 68.9 bar (1000 psi) |
| Raise Lift Arms | 6.2 sec | 5.4 sec |
| Lower Lift Time | 3 sec | 2.7 sec |
| Bucket Dump Time | 1.4 sec | 1.4 sec |
| Operating Weight | 17690.1 kg (39000 lbs) | 15054.7 kg (33190 lbs) |
| Tipping Load | 11249.1 kg (24800 lbs) | 11589.3 kg (25550 lbs) |
| Bucket Capacity (Heaped) | 3.3 m³ (4.3 cu yds) | 2.8 m³ (3.7 cu yds) |
| Bucket Capacity (Struck) | 2.8 m³ (3.7 cu yds) | 2.4 m³ (3.2 cu yds) |
| Bucket Width | 304.8 cm (120 in) | 274.3 cm (108 in) |
| Breakout Force | 13866.3 kg (30570 lbs) | 12510.1 kg (27580 lbs) |
| Reach At Max Lift And Dump | 121.9 cm (48 in) | 121.9 cm (48 in) |
| Dump Clearance At Max Raise | 335.3 cm (132 in) | 274.3 cm (108 in) |
| Turning Radius | 548.6 cm (216 in) | 1219.2 cm (480 in) |
| Wheelbase | 304.8 cm (120 in) | 304.8 cm (120 in) |
| Bucket Hinge Pin | 457.2 cm (180 in) | 396.2 cm (156 in) |
| Cab Height | 335.3 cm (132 in) | 335.3 cm (132 in) |
| Overall Length | 853.4 cm (336 in) | 731.5 cm (288 in) |
| Ground Clearance | 61.0 cm (24 in) | 30.5 cm (12 in) |
| Width Over Tires | 274.3 cm (108 in) | 274.3 cm (108 in) |
| Tire Size | 20.5-25 | 20.5 R25 |
| Torque Rise | — | 38 % |
| Stroke | — | 12.7 cm (5 in) |
| Bore | — | 10.4 cm (4.1 in) |
| Crankcase | — | 17.4 l (4.6 gal) |
| Hydraulic Tank | — | 89.0 l (23.5 gal) |
Values come from the manufacturer-sourced model files; empty cells mean the property is not published for that model. No performance ranking is applied.