Allis Chalmers HD21

Allis Chalmers HD21 Agricultural Crawler tractor Technical Specifications

Allis Chalmers HD21 is a Row-Crop tractor that was produced by the John Deere between 1954 – 1965.

Below you will find detailed technical specifications for Allis Chalmers HD21 covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

Allis Chalmers HD21 Production

Manufacturer: Allis Chalmers
Type: Agricultural Crawler tractor
Factory: Springfield, Illinois, USA

Allis Chalmers HD21 Power

Engine: 225 hp
167.8 kW
Drawbar (tested): 135.12 hp
100.8 kW

Allis Chalmers HD21 Mechanical

Chassis: crawler
Brakes: contracting band
Cab: Open operator station.
Transmission: 2-speed torque converter

Allis Chalmers HD21 Engine detail

Engine Detail
supercharged diesel
liquid-cooled vertical I-head
Displacement: 844 ci
13.8 L
Bore/Stroke: 5.25×6.50 inches
133 x 165 mm
Power: 225 hp
167.8 kW
Air cleaner: oil bath
Compression: 13.3:1
Rated RPM: 1800
Starter volts: 24
Coolant capacity: 80 qts
75.7 L

Allis Chalmers HD21 Transmission overview

Engine Oil

Type: torque converter
Gears: 2 forward and 1 reverse

Allis Chalmers HD21 Dimensions

Length: 198 inches
502 cm
Height: 99 inches
251 cm
Weight: 45500 lbs
20638 kg

Allis Chalmers HD21 Tests

Nebraska Tractor Test 550
Diesel 2-speed crawler
July 6 – 18, 1955
Link: Nebraska Tractor Test 550 file
Drawbar performance
Max power: 135.12 hp
100.8 kW
Max pull: 40563 lbs
18399 kg


Is Allis Chalmers HD21 a good tractor?

The Allis Chalmers HD21 is one of the great tractors in the Allis Chalmers stable, and it has earned Allis Chalmers a fantastic reputation.

How much oil does a Allis Chalmers HD21 take?

Check out the Allis Chalmers HD21 oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year Allis Chalmers made the ?

The Allis Chalmers HD21 was an agricultural tractor model made from 1954 – 1965

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