SPECS / COMPARISON
Ford 6640 vs John Deere 420C
A detailed comparison of the Ford 6640 and the John Deere 420C. Click a model name to view its full specifications.
Weight
Ford 66403690.0 kg (4WD ROPS: 8135.0 lbs)
John Deere 420C2131.0 kg (4-roller: 4138.1 lbs (1877.0 kg) 5-roller: 4698.0 lbs)
| Specification | Ford 6640 Agricultural Tractors | John Deere 420C Agricultural Tractors |
|---|---|---|
| Tractor Type | Utility Tractor | Agricultural Crawler Tractor |
| Horsepower | 67.6 kW (90.6 HP) | — |
| Weight | 3690.0 kg (4WD ROPS: 8135.0 lbs) | 2131.0 kg (4-roller: 4138.1 lbs (1877.0 kg) 5-roller: 4698.0 lbs) |
| Lift Capacity | 2975.0 kg (4199.8 lbs (1905.0 kg) Optional: 4442.3 lbs (2015.0 kg) SLE: 6206.0 lbs (2815.0 kg) SLE optional: 6558.7 lbs) | — |
| Transmission Type | Four-speed power shiftwith wet disc clutch | Unsynchronized gear |
| Length | 411.0 cm (161.8 in.) | 259.0 cm (102.0 in.) |
| Pump Flow | 79.5 LPM (18.2 GPM (68.9 LPM) SLE: 21.0 GPM) | — |
| Years Made | 1991-1995 | 1956-1958 |
| Engine Model | Ford Genesis | John Deere |
| Engine Type | 4-stroke, liquid-cooled, inline | 4-stroke, liquid-cooled, inline |
| Fuel Type | Diesel | Gasoline |
| Cylinders | 4 | 2 |
| Displacement | 4982 cc (304.0 cu in.) | 1851 cc (113.0 cu in.) |
| Bore | 11.20 cm (4.41 in.) | 10.79 cm (4.25 in.) |
| Stroke | 12.70 cm (5.00 in.) | 10.21 cm (4.02 in.) |
| Rear PTO Type | Independent | Live |
| Rear PTO Speed | 540, 540/1000 RPM | 560 RPM |
| Torque Power | 1200 RPM | — |
| Torque Speed | 457.0 N·m (337.1 lb-ft) | — |
| Rated RPM | 2200 RPM | — |
| Compression Ratio | 17.5:1 | 7.2:1 |
| Battery | 12 V, CCA: 800A, One for ROPS and two for Cab | 6 V |
| Starter | Electric | Electric |
| Height | 271.0 cm (Cab Height: 106.7 in.) | 175.0 cm (Cab Height: 68.9 in.) |
| Wheelbase | 236.0 cm (92.9 in.) | — |
| Ground Clearance | 50.0 cm (Front axle: 2WD: 21.7 in. (55.0 cm) 4WD: 19.7 in.) | 35.0 cm (13.8 in.) |
| Fuel Tank Capacity | 177.5 l (25.0 gal (94.6 l) ROPS : 52.7 gal (199.5 l) Cab : 46.9 gal) | 39.7 l (10.5 gal) |
| Oil Capacity | 11.5 l (3.0 gal) | 4.7 l (1.2 gal) |
| Coolant Capacity | 14.5 l (3.8 gal) | 10.4 l (2.7 gal) |
| Transmission Oil Capacity | 65.9 l (17.4 gal) | — |
| Engine Oil Type | SAE 10W-30 | — |
| Transmission Model | ElectroShift/Pulse Command | John Deere |
| Final Drive | Inboard planetary | — |
| Gears | 16 forward and 16 reverse | 5 forward and 1 reverse |
| Chassis | 4×2 2WD or 4×4 MFWD 4WD | Crawler |
| Max. Travel Speed | 30.7 km/h (Forward: 19.1 MPH) | 2.8 km/h (Forward: 5.8 MPH (9.3 km/h) Reverse: 1.7 MPH) |
| Brakes | Mechanical or hydraulic wet disc | Mechanical band |
| Differential Lock | Mechanical or electro-hydraulic | — |
| Drawbar Category | II | I |
| Cabin Type | Two-post foldable ROPS, Straddle-mount or raised deck .Comfort Command Cab . | Open operator station |
| Hitch Type | Position control and top-link draft sensing. Electronic lower-link sensing | — |
| Steering Type | Hydrostatic power | Mechanical disc clutches |
| Front Tires | Ag: 7.50-16 | — |
| Rear Tires | Ag: 16.9-30 | — |
| Hydraulic Type | Open center or closed center load sensing | — |
| Valves | 1 to 4 | — |
| Track Size | — | 10 /12/14-inch |
Values come from the manufacturer-sourced model files; empty cells mean the property is not published for that model. No performance ranking is applied.