Allis Chalmers D21 Series I
The Allis Chalmers D21 Series I is a tractor produced by Allis Chalmers. It is equipped with a 426 ci 7.0 L engine. The rated power output is 119 hp 88.7 kW. Transmission: Power Director. Operating weight: 9500 lbs 4309 kg.
Engine Power
119 hp
88.7 kW
Fuel & Capacities
52 gal
196.8 L
Transmission
Power Director
Operating Weight
9500 lbs
4309 kg
Allis Chalmers D21 Series I Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
 | 1963 - 1969
Model year 1963-19651965-1969
D SeriesRow-Crop tractor |
|---|---|
1963 - 1969 | |
Model year 1963-19651965-1969 | |
D Series | |
Row-Crop tractor | |
Production | |
|---|---|
Manufacturer | Allis Chalmers |
Row-Crop tractor | |
Built in West Allis, Wisconsin, USA | |
Total built | 1,129 |
Original price was $5,700 in 1964 | |
The D21 was the first Allis Chalmers tractor to have over 100 horsepower. The upgraded D21 II began at serial number 2201 in 1965. | |
Allis Chalmers D21 Engine | |
|---|---|
Allis Chalmers 7.0L 6-cyl diesel | |
Fuel tank | 52 gal
196.8 L |
Engine details ...  | |
Allis Chalmers D21 Transmission | |
|---|---|
8-speed sliding gear | |
Transmission details ...  |
Allis Chalmers D21 Power | |
|---|---|
Engine | 119 hp
88.7 kW |
Drawbar (claimed) | 93 hp
69.4 kW |
PTO (claimed) | 103 hp
76.8 kW |
Plows | 7 |
Drawbar (tested) | 93.09 hp
69.4 kW |
PTO (tested) | 103.06 hp
76.9 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Power steering | |
Band actuated disc brakes | |
Open operator station. |
Tractor hitch | |
|---|---|
Rear Type | III/II |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 1000 |
Dimensions & Tires | |
|---|---|
Wheelbase | 96.1 inches
244 cm |
Weight | 9500 lbs
4309 kg |
Front tire | 7.50x20 |
Rear tire | 18.4x34 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | Delco-Remy generator |
Charging amps | 32 |
Batteries | 2 |
4 OptOptional | |
Battery volts | 12 |
Battery AH | 95 |
References | |
|---|---|
 | |
New D21 Tractor (FE-131/637) published in 1963 | |
Operating Instructions Model D21 Tractor (TM-346A) published in 1963 |
Engine
Engine Detail — 426 ci / 7.0 L Diesel
Manufacturer | Allis Chalmers 3400 |
Fuel Type | Diesel |
Configuration | 6-cylinder, liquid-cooled |
Displacement | 426 ci
7.0 L |
Bore/Stroke | 4.25x5.00 inches
108 x 127 mm |
Power | 119 hp
88.7 kW |
Air cleaner | dry |
Compression | 16.0:1 |
Rated RPM | 2200 |
Firing order | 1-5-3-6-2-4 |
Coolant capacity | 21 qts
19.9 L |
Intake valve clearance | 0.015 inches*Hot
0.381 mm |
Exhaust valve clearance | 0.015 inches*Hot
0.381 mm |
Oil capacity | 12 qts
11.4 L |
Transmission
Transmission — Power Director
Transmission | Power Director |
Type | sliding gear |
Gears | 8 forward and 2 reverse |
Clutch | dry disc |
Oil capacity | 68 qts*No PTO or hydraulics
64.4 L |
92 qts
87.1 L | |
Transmission is controlled by means of a range control knob and a gear shift lever. The range knob is located below the steering wheel, pushing it forward puts the tractor in high range, pull it back engages low range. The gear shift selects one of four forward gears, or reverse. The tractor must be stopped and clutch used to change gears or range. | |
With 18.4x34 rear tires. | |
 | |
Dimensions
Allis Chalmers D21 Tires | |
|---|---|
Ag front | 7.50x20 |
Ag rear | 18.4x34 |
Ag front | 11.00x16 |
Ag rear | 24.5x32 |
Dimensions | |
|---|---|
Wheelbase | 96.1 inches
244 cm |
Length | 160.6 inches
407 cm |
Width | 91.6 inches
232 cm |
Shipping weight | 9500 lbs
4309 kg |
Ballasted weight | 11700 lbs
5307 kg |
Clearance (front axle) | 21.3 inches
54 cm |
Clearance (rear axle) | 26.75 inches
67 cm |
Allis Chalmers D21 Height | |
|---|---|
Steering wheel | 90.3 inches
229 cm |
Hood | 71.75 inches
182 cm |
Exhaust | 106.6 inches
270 cm |
Tests
Nebraska Tractor Test 855 | |
|---|---|
Diesel 8-speed 2WD
October 15, 1963 - October 21, 1953
Link: Nebraska Tractor Test 855 file | |
PTO performance | |
Power at rated engine speed | 103.06 hp
76.9 kW |
Fuel use | 7.1 gal/hour
26.9 l/hour |
Drawbar performance | |
Max power | 93.09 hp
69.4 kW |
Fuel use | 7.1 gal/hour
26.9 l/hour |
Gear 4 used for power test. | |
Max pull | 14840 lbs
6731 kg |
Gear 2 used for pull test. | |
Photos
Allis Chalmers D21 Series I
Allis-Chalmers D21 Series I
Allis Chalmers D21 Series I Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Allis Chalmers D21 Series I.
Converted Equivalents:
Horsepower (HP)119 hp
Kilowatts (kW)88.7 kW
Metric Horsepower (PS / CV)120.7 PS