SPECS / COMPARISON
Allis Chalmers D21 Series I vs Ford 8600
A detailed comparison of the Allis Chalmers D21 Series I and the Ford 8600. Click a model name to view its full specifications.
Weight
Allis Chalmers D21 Series I4310.0 kg (9501.9 lbs)
Ford 86003643.0 kg (Row-crop: 9016.9 lbs (4090.0 kg) All purpose: 8031.4 lbs)
| Specification | Allis Chalmers D21 Series I Agricultural Tractors | Ford 8600 Agricultural Tractors |
|---|---|---|
| Tractor Type | Row-Crop Tractor | Row-Crop Tractor |
| Horsepower | 76.8 kW (103.0 HP) | — |
| Weight | 4310.0 kg (9501.9 lbs) | 3643.0 kg (Row-crop: 9016.9 lbs (4090.0 kg) All purpose: 8031.4 lbs) |
| Transmission Type | Sliding gear with dry disc clutch | Partial power shift |
| Length | 407.0 cm (160.2 in.) | 376.0 cm (Row crop: 154.7 in. (393.0 cm) All purpose: 148.0 in.) |
| Years Made | 1963-1965 | 1972-1976 |
| Engine Model | Allis Chalmers 3400 | Ford |
| Engine Type | 4-stroke, liquid-cooled, inline | 4-stroke, liquid-cooled, inline |
| Fuel Type | Diesel | Diesel |
| Cylinders | 6 | 6 |
| Displacement | 6980 cc (425.9 cu in.) | 6571 cc (401.0 cu in.) |
| Bore | 10.79 cm (4.25 in.) | 11.20 cm (4.41 in.) |
| Stroke | 12.70 cm (5.00 in.) | 11.20 cm (4.41 in.) |
| Rear PTO Type | Independent | Independent |
| Rear PTO Speed | 1.000 RPM | 540 /1000 RPM |
| Rated RPM | 2200 RPM | — |
| Compression Ratio | 16.0:1 | 16.5:1 |
| Battery | Two or four 12V, 95Ah | 12 V, 128Ah |
| Starter | Electric | Electric |
| Height | 270.0 cm (106.3 in.) | 187.0 cm (Hood Height: Row-crop: 72.8 in. (185.0 cm) All purpose: 73.6 in.) |
| Width | 232.0 cm (91.3 in.) | — |
| Wheelbase | 244.0 cm (96.1 in.) | 232.0 cm (Row-crop: 107.9 in. (274.0 cm) All purpose: 91.3 in.) |
| Fuel Tank Capacity | 196.8 l (52.0 gal) | 162.8 l (43.0 gal) |
| Oil Capacity | 11.4 l (3.0 gal) | 11.4 l (3.0 gal) |
| Coolant Capacity | 19.9 l (5.3 gal) | 18.5 l (ROPS: 4.5 gal (17.0 l) Cab: 4.9 gal) |
| Transmission Oil Capacity | 87.1 l (17.0 gal (64.4 l) 23.0 gal) | 65.3 l (17.3 gal) |
| Transmission Model | Power Director | Dual Power |
| Gears | 8 forward and 2 reverse | 16 forward and 4 reverse |
| Chassis | 4×2 2WD | 4×2 2WD |
| Max. Travel Speed | 11.0 km/h (Forward: 16.2 MPH (26.0 km/h) Reverse: 6.8 MPH) | 12.4 km/h (Forward: 17.6 MPH (28.3 km/h) Reverse: 7.7 MPH) |
| Brakes | Band actuated disc | Differential hydraulic wet disc |
| Drawbar Category | III/II | II |
| Cabin Type | Open operator station | Open operator station or Cab |
| Steering Type | Power | Hydrostatic power |
| Front Tires | Ag: 7.50×20 | Ag: 7.50-18 , 7.50-16 |
| Rear Tires | Ag: 18.4×34 | Ag: 18.4-34 , 16.9-34 |
| Pump Flow | — | 45.4 LPM (12.0 GPM) |
| Ground Clearance | — | Front axle: 23.6 in. (60.0 cm) All purpose: |
| Hydraulic Capacity | — | 65.3 l (16.0 gal (60.6 l) Dual Power: 17.3 gal) |
| Differential Lock | — | Foot pedal |
| Total Flow | — | 61.3 LPM (16.2 GPM) |
| Steering Flow | — | 15.9 LPM (4.2 GPM) |
| Working Pressure | — | 172.4 bar (2500.0 psi) |
Values come from the manufacturer-sourced model files; empty cells mean the property is not published for that model. No performance ranking is applied.