Comparing the Allis Chalmers D21 Series I and the John Deere 6403

This page provides a detailed comparison of the specifications for the Allis Chalmers D21 Series I and the John Deere 6403. Explore key differences and similarities across various aspects, including Power Output, Operating Weight and Cylinders.

SpecificationAllis Chalmers D21 Series IJohn Deere 6403
General Information
Manufacturer
Allis Chalmers
John Deere
Model
D21 Series I
6403
Category
Row Crop
Utility
Engine
Manufacturer
Allis Chalmers
John Deere
Model
3400
Power Output
103hp
102hp
Rated RPM
2,200RPM
2,100RPM
Cylinders
6
4
Displacement
426ci
276ci
Bore
4.25in
4.19in
Stroke
5in
5in
Transmission
Type
Sliding gear with dry disc clutch
Partially synchronized
Dimensions & Weight
Length
160.6in
163.1in
Width
91.6in
73in
Height
106.6in
108.7in
Operating Weight
9,500lb
8,987lb
Hydraulics
System Type
Open center
Steering Type
Power
Power
Hitch & Towing
Hitch Type
Three-Point Hitch
Three-Point Hitch
Hitch Category
III/II
II
Hitch Position
Rear
Rear
Hitch Capacity
4,830lb
Chassis & Drive
Chassis Type
4x2 2WD
4x4 MFWD 4WD
Drive Type
2WD
MFWD 4WD
Steering Type
Power
Power
Brake Type
Band actuated disc
Mechanical wet disc
Electrical
Starter Type
Electric
Electric
Capacities
Coolant
21qts
14.3qts
Operator Station
Type
Open
Two-post folding ROPS