SPECS / COMPARISON
John Deere 7800 vs Allis Chalmers HD6
A detailed comparison of the John Deere 7800 and the Allis Chalmers HD6. Click a model name to view its full specifications.
Weight
John Deere 78006309.0 kg (13908.9 lbs)
Allis Chalmers HD66080.0 kg (13404.1 lbs)
| Specification | John Deere 7800 Agricultural Tractors | Allis Chalmers HD6 Agricultural Tractors |
|---|---|---|
| Tractor Type | Row-Crop Tractor | Agricultural Crawler Tractor |
| Horsepower | 126.8 kW (170.0 HP) | — |
| Weight | 6309.0 kg (13908.9 lbs) | 6080.0 kg (13404.1 lbs) |
| Lift Capacity | 4560.0 kg (Standard: 8928.7 lbs (4050.0 kg) Optional: 10053.1 lbs) | — |
| Transmission Type | Full power shift with wet disc clutch | Power shift |
| Length | 475.0 cm (187.0 in.) | 322.0 cm (126.8 in.) |
| Pump Flow | 96.1 LPM (25.4 GPM) | — |
| Years Made | 1992-1996 | 1955-1974 |
| Engine Model | John Deere | Allis-Chalmers |
| Engine Type | 4-stroke, liquid-cooled, inline | 4-stroke, liquid-cooled, inline |
| Fuel Type | Diesel | Diesel |
| Cylinders | 6 | 4 |
| Displacement | 7636 cc (466.0 cu in.) | 5637 cc (344.0 cu in.) |
| Bore | 11.61 cm (4.57 in.) | 11.30 cm (4.45 in.) |
| Stroke | 12.09 cm (4.76 in.) | 14.10 cm (5.55 in.) |
| Rear PTO Type | Independent | — |
| Rear PTO Speed | 540 /1000 RPM | — |
| Rated RPM | 2100 RPM | — |
| Compression Ratio | 15.5:1 | Natural aspirated: 15.0:1Turbocharged: 16.25:1 |
| Battery | 12 V | Two 12V |
| Starter | Electric | Electric |
| Height | 300.0 cm (Cab Height: 118.1 in.) | 167.0 cm (65.7 in.) |
| Wheelbase | 279.0 cm (2WD: 114.2 in. (290.0 cm) 4WD: 109.8 in.) | — |
| Fuel Tank Capacity | 345.0 l (91.1 gal) | 140.0 l (37.0 gal) |
| Coolant Capacity | 26.0 l (6.9 gal) | 14.2 l (3.8 gal) |
| Hydraulic Capacity | 86.7 l (22.9 gal) | — |
| Transmission Model | John Deere PowerShift | — |
| Final Drive | Inboard planetary | — |
| Gears | 19 forward and 7 reverse | 2 forward and 2 reverse |
| Chassis | 4×2 2WD or 4×4 MFWD 4WD | Crawler |
| Max. Travel Speed | 16.3 km/h (Forward: 24.2 MPH (39.0 km/h) Reverse: 10.1 MPH) | — |
| Brakes | Differential hydraulic wet disc | — |
| Differential Lock | Electro-hydraulic rear | — |
| Drawbar Category | IIIN/II | — |
| Cabin Type | ComfortGard cab standard with air-conditioning | Open operator station |
| Hitch Type | Position and draft control | Tracks |
| Steering Type | Power | — |
| Hydraulic Type | Closed center | — |
| Working Pressure | 199.9 bar (2900.0 psi) | — |
| Valves | 2 to 3 | — |
Values come from the manufacturer-sourced model files; empty cells mean the property is not published for that model. No performance ranking is applied.