Comparing the Allis Chalmers D21 Series I and the Farmall 856

This page provides a detailed comparison of the specifications for the Allis Chalmers D21 Series I and the Farmall 856. Explore key differences and similarities across various aspects, including Power Output, Operating Weight and Cylinders.

SpecificationAllis Chalmers D21 Series IFarmall 856
General Information
Manufacturer
Allis Chalmers
Farmall
Model
D21 Series I
856
Category
Row Crop
Row Crop
Engine
Manufacturer
Allis Chalmers
International Harvester
Model
3400
D-407
Power Output
103hp
95hp
Rated RPM
2,200RPM
2,400RPM
Cylinders
6
6
Displacement
426ci
406.9ci
Bore
4.25in
4.33in
Stroke
5in
4.61in
Transmission
Type
Sliding gear with dry disc clutch
Sliding gear with dry disc clutch
Dimensions & Weight
Length
160.6in
163.8in
Width
91.6in
91.7in
Height
106.6in
Operating Weight
9,500lb
10,290lb
Hydraulics
Steering Type
Power
Hydrostatic power
Hitch & Towing
Hitch Type
Three-Point Hitch
IH Fast Hitch
Hitch Category
III/II
II
Hitch Position
Rear
Rear
Chassis & Drive
Chassis Type
4x2 2WD
Drive Type
2WD
2WD
Steering Type
Power
Hydrostatic power
Brake Type
Band actuated disc
Independent hydraulic disc
Electrical
Starter Type
Electric
Electric
Capacities
Coolant
21qts
24qts
Operator Station
Type
Open
Open