Allis Chalmers D21 Series II

Last Updated: June 2024

Overview

The Allis Chalmers D21 Series II is a classic row-crop tractor that was manufactured between 1965 and 1969. Designed for larger-scale agricultural tasks, its robust frame and 4x2 2WD chassis provide the necessary stability for various field operations. Powered by the Allis Chalmers 3500 six-cylinder diesel engine, it boasts a displacement of 426 cubic inches, delivering a power output of 121 horsepower at a rated 2200 RPM. This model comes equipped with an 8-forward and 2-reverse gear transmission, allowing for a range of speeds to suit different tasks. The power steering and band actuated disc brakes enhance the operator's control and comfort, and the open operator station allows for easy access and visibility. The tractor's significant operating weight of 9,502 lbs underscores its durable construction and capability to handle substantial loads. With its sizable fuel tank capacity and efficient power use, the D21 Series II serves as a reliable workhorse for those owning this vintage machinery.
Show more...

Key Specifications

Category: Row Crop

Power Output: 121

Transmission: Sliding gear with dry disc clutch

Drive Type: 2WD

Operating Weight: 9502

Fuel Type: Diesel

Allis Chalmers D21 Series II vs. Similar Tractors

Power Output
Average
Greater than 37% of similar tractors.
Operating Weight
Average
Greater than 32% of similar tractors.

Technical Specifications

Engine

Manufacturer
Allis Chalmers
Model
3500
Cooling Type
Liquid-cooled
Cylinder Orientation
Inline
Valve Configuration
-
Fuel Type
Diesel
Induction Type
Naturally aspirated
Cylinders
6
Displacement (ci)
426
Bore (in)
4.25
Stroke (in)
5
Rated RPM
2200
Power Output (hp)
121

Transmission

Type
Sliding gear with dry disc clutch
Forward Gears
8
Reverse Gears
2
Total Gears
-

Dimensions

Length (in)
160.2
Width (in)
91.3
Height (in)
106.3
Operating Weight (lb)
9502

Power Take-Off (PTO)

PTO Type
Independent
PTO Speed 1 (rpm)
1000
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4x2 2WD
Drive Type
2WD
Steering Type
Power
Coolant Capacity (qts)
31
Front Tire Diameter (in)
-
Front Tire Width (in)
-
Rear Tire Diameter (in)
-
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
Agricultural
Manufacture - End Year
1969
Hitch Type
Three-Point Hitch
Hitch Category
III/II
Hitch Position
Rear
Hitch Capacity (lb)
-
Operator Station Type
Open
Starter Type
Electric
Brake Type
Band actuated disc
Hydraulic System Type
-