Head to head · Row Crop

Allis Chalmers 8070 vs John Deere 7820

Allis Chalmers 8070 Tractor
Allis ChalmersModel A

Allis Chalmers 8070

Row Crop

power
170 hp
displacement
426 ci
Cylinders
6
Forward gears
20
Full 8070 specs
Image not recorded
John DeereModel B

John Deere 7820

Agricultural

power
171 hp
displacement
415 ci
Cylinders
6
Forward gears
20
Full 7820 specs
Allis ChalmersAllis Chalmers 8070
vs
John DeereJohn Deere 7820

How they compare

Headline specs vs. the whole Row Crop

n = 279–1,417

Engine Power

▲ 7820 higher · +1 hp (<1%)
8070170 hp
7820171 hp
Median Row Crop Tractor138 hp

8070 is in the 67th percentile; 7820 is in the 67th · 1,206 models

Engine Displacement

▲ 8070 higher · +11 ci (+3%)
8070426 ci
7820415 ci
Median Row Crop Tractor391 ci

8070 is in the 72nd percentile; 7820 is in the 69th · 1,409 models

Cylinders

= Effectively tied
80706
78206
Median Row Crop Tractor6

8070 is in the 50th percentile; 7820 is in the 50th · 1,417 models

Forward Gears

= Effectively tied
807020
782020
Median Row Crop Tractor16

8070 is in the 70th percentile; 7820 is in the 70th · 1,200 models

8070 (A)7820 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers 8070John Deere 7820Difference
ManufacturerAllis ChalmersJohn Deere—
Model80707820—
CategoryRow CropAgricultural—

Engine

SpecAllis Chalmers 8070John Deere 7820Difference
ManufacturerAllis ChalmersJohn Deere—
Model670INot recorded—
Power Output170hp171hp▲ 7820+1 hp · <1%
Rated RPM2,400RPM2,100RPM▲ 8070+300 RPM · +14%
Cylinders66Same
Displacement426ci415ci▲ 8070+11 ci · +3%
Bore4.3in4.2in▲ 8070+0.1 in · +2%
Stroke5in5inSame

Transmission

SpecAllis Chalmers 8070John Deere 7820Difference
TypePartial Power ShiftPartial power shift (AutoQuad-Plus)—

Dimensions & Weight

SpecAllis Chalmers 8070John Deere 7820Difference
Length187in212in▲ 7820+25 in · +13%
Width95.5in96in▲ 7820+0.5 in · <1%
Height116in125in▲ 7820+9 in · +8%
Operating Weight16,850lb21,000lb▲ 7820+4,150 lb · +25%

Hydraulics

SpecAllis Chalmers 8070John Deere 7820Difference
System TypeClosed-center load-sensitiveClosed-center pressure-flow compensated (PFC)—
Steering TypeHydrostatic PowerHydrostatic powerSame

Power Take-off (PTO)

SpecAllis Chalmers 8070John Deere 7820Difference
TypeIndependentIndependent with hydraulic wet disc clutch—
Speed 11,000rpm1,000rpmSame

Tires

SpecAllis Chalmers 8070John Deere 7820Difference
Front Tire SizeNot recorded600/65R28—
Rear Tire SizeNot recorded710/70R38—

Hitch & Towing

SpecAllis Chalmers 8070John Deere 7820Difference
Hitch TypeThree-Point HitchThree-Point HitchSame
Hitch CategoryIII/IICategory 3—
Hitch PositionRearRearSame
Hitch Capacity8,200lb13,618lb▲ 7820+5,418 lb · +66%

Chassis & Drive

SpecAllis Chalmers 8070John Deere 7820Difference
Chassis Type4x2 2WD4x4 MFWD 4WD—
Drive Type2WD4WD—
Steering TypeHydrostatic PowerHydrostatic powerSame
Brake TypeDifferential hydraulic wet discsHydraulic wet disc—

Electrical

SpecAllis Chalmers 8070John Deere 7820Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers 8070John Deere 7820Difference
Coolant9galNot recorded—

Operator Station

SpecAllis Chalmers 8070John Deere 7820Difference
TypeCabCabSame

Category context

Both models against the field

Engine Power

median 138 hp
A · 67th percentile (170 hp)B · 67th percentile (171 hp)

Engine Displacement

median 391 ci
A · 72nd percentile (426 ci)B · 69th percentile (415 ci)

Cylinders

median 6
A · 50th percentile (6)B · 50th percentile (6)

Forward Gears

median 16
A · 70th percentile (20)B · 70th percentile (20)

Operating Weight

median 12,307 lb
A · 73rd percentile (16,850 lb)B · 86th percentile (21,000 lb)
A · 8070B · 7820Median Row Crop Tractor
Full spec pageAllis Chalmers 8070Full spec pageJohn Deere 7820