Allis Chalmers D21 Series II

Last Updated: September 2024

Overview

The Allis Chalmers D21 Series II is a powerful row crop tractor made from 1965 to 1969. It has a strong 6-cylinder diesel engine that makes 121 horsepower. This engine is bigger than most other tractors, which helps it work hard in the fields. The tractor has two-wheel drive and power steering, making it easy to control.

This tractor is built for serious farm work. It has a three-point hitch in the back for attaching tools. The hitch can handle big equipment, which is great for large farms. The D21 Series II also has a separate PTO that spins at 1000 rpm. This lets farmers use many different kinds of tools. The tractor is pretty heavy, weighing 9,502 pounds. It's big too, measuring over 13 feet long and almost 9 feet tall. Despite its size, it has an open operator station, so farmers can easily see around them while working.
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Key Specifications

Category: Row Crop

Power Output: 121 hp (90.2 kW)

Transmission: Sliding gear with dry disc clutch

Drive Type: 2WD

Operating Weight: 9502 lb (4310 kg)

Fuel Type: Diesel

Allis Chalmers D21 Series II vs. Similar Tractors

Power Output

The Power Output for the Allis Chalmers D21 Series II is Average. It is greater than 39% of similar Row Crop tractors in our database.

Horsepower distribution of Row Crop tractors

(across 1.1K+ tractors in our database)

Operating Weight

The Operating Weight for the Allis Chalmers D21 Series II is Below Average. It is greater than 27% of similar Row Crop tractors in our database.

Operating weight distribution of Row Crop tractors

(across 1.3K+ tractors in our database)

Engine Displacement

The Engine Displacement for the Allis Chalmers D21 Series II is Above Average. It is greater than 72% of similar Row Crop tractors in our database.

Engine displacement distribution of Row Crop tractors

(across 1K+ tractors in our database)

Engine Rated RPM

The Engine Rated RPM for the Allis Chalmers D21 Series II is Average. It is greater than 58% of similar Row Crop tractors in our database.

Engine rated RPM distribution of Row Crop tractors

(across 1K+ tractors in our database)

Technical Specifications

Engine

Manufacturer
Allis Chalmers
Model
3500
Cooling Type
Liquid-cooled
Cylinder Orientation
Inline
Fuel Type
Diesel
Induction Type
Naturally aspirated
Cylinders
6
Displacement
426 ci (7.0 L)
Bore
4.25 in (107.9 mm)
Stroke
5.00 in (127.0 mm)
Rated RPM
2200
Power Output
121 hp (90.2 kW)

Transmission

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

Drivetrain

Chassis
4x2 2WD
Drive Type
2WD
Steering Type
Power
Brake Type
Band actuated disc