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Tractor · 1923Unverified

John Deere Unstyled D

Name: John Deere Unstyled D
Brand: John Deere

John Deere Unstyled D — Model year 1923-19391939-1953 · 15 hp. Reference specifications; pending source verification.

The John Deere Unstyled D is a compact tractor model with a rated output of 15 hp, produced from 1923 to 1953. This model is equipped with a 2-cylinder diesel liquid-cooled engine, which drives a two-wheel drive system with a 2-speed gearbox. The listed weight of the tractor ranges from 4090 to 5880 pounds, and it is suitable for tasks involving approximately 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

15 hp

Max power

16.8 kW

Weight

4090 to 5880 pounds

Catalogue coverage

Variants represented

Richest spec table

102 rows

Recorded power

15 hp

Recorded weight

1855 kg

Transmissions

2-speed unsynchronized gear

Production years

1923-1953

Verified variants

1 linked source document displayed

Hover a source tag to verify

Overview

ManufacturerJohn DeereReference

Standard-tread tractorReference

Built in Waterloo, Iowa, USAReference

Total built160,000Reference

Original price was $1,000 in 1924Reference

The D had the longest run of any model of John Deere tractor, the styled and unstyled versions ran from March 1, 1923 until July 3, 1953. Serial numbers 31321 through 31412 are not model Ds, but are Waterloo Boy Ns which were built after model D production had begun.Reference

Two-wheel driveReference

Manual steeringReference

Open operator station with steel pan seat.Reference

Engine

John Deere 7.6L 2-cyl all fuelReference

John Deere 8.2L 2-cyl all fuelReference

Fuel tank68.1 LReference

Fuel tank88.9 LReference

Aux. fuel9.5 LReference

Aux. fuel5.7 LReference

Drawbar (claimed)11.2 kWReference

Belt (claimed)20.1 kWReference

Plows3 (14-inch)Reference

Drawbar (tested)22.3 kWReference

Belt (tested)31.0 kWReference

John DeereReference

all fuelReference

2-cylinderReference

liquid-cooledReference

Used from beginning until 1927, S/N 53388Reference

Displacement7.6 LReference

Bore/Stroke165 x 178 mmReference

Compression3.91:1Reference

Rated RPM800Reference

Firing order1-2Reference

Coolant capacity49.2 LReference

The larger 501 cubic inch engine was introduced in 1927, replacing the 465..Reference

Displacement8.2 LReference

Bore/Stroke171 x 178 mmReference

Rated RPM900Reference

Oil capacity12.3 LReference

Coolant capacity49.2 LReference

Coolant capacity53.0 LReference

Belt power (max)22.7 kWReference

Max power16.8 kWReference

Belt power (max)31.0 kWReference

Max power22.3 kWReference

Transmission

2-speed unsynchronized gearReference

3-speed unsynchronized gearReference

Typeunsynchronized gearReference

Gears2 forward and 1 reverseReference

Original transmission, used from 1923 to 1935Reference

Gears3 forward and 1 reverseReference

Three-speed transmission was introduced in 1935Reference

PTO & Hydraulics

Rear PTOoptionalReference

Rear PTO Type525Reference

Dimensions

Weight4090 to 5880 poundsReference

Front tire28x5Reference

Rear tire46x12Reference

Ag front28x5 (steel)Reference

Ag front28x6 (steel)Reference

Ag front7.50x18Reference

Ag rear46x12 (steel)Reference

Ag rear12.75x28Reference

Length276 cmReference

Length330 cmReference

Width142 cmReference

Width168 cmReference

Weight1855 kgReference

Weight2667 kgReference

D Serial Number Location

Serial number plate on the tractor's operator platform, ahead of seat mount.Reference

D Serial Numbers

192430401 (model years)Reference

192531280Reference

192635309Reference

192743410Reference

192853388Reference

192971645Reference

193095367Reference

1931109944Reference

1932115509Reference

1933115665Reference

1934116273Reference

1935119100Reference

1936125079Reference

1937130700Reference

1938138413Reference

1939142300Reference

Final143799Reference

FAQ: How to read a serial number table.Reference

Capacities

Diameter33 cmReference

Width21 cmReference

RPM900Reference

Speed951.59 meters/minReference

Questions

My father had two John Deere Model D's, my dad said the tractors ran on Distillate. I remember him mixing gas and diesel to fuel the tractors. Can you tell me the ratio of gas and diesel to mix the fuel to spark these ol' gems up again? You can use gasoline. The D will run without problems on gasoline, it is what was used in the starting fuel tank.Reference

John Deere D Height

Hood142 cmReference

Hood147 cmReference

Hood155 cmReference

Test results

NTTL 102: 465ci kerosene 2-speed 2WDReference

NTTL 236: 501ci distillate 3-speed 2WDReference

465ci kerosene 2-speed 2WDApril 11 - 17, 1924Link: Nebraska Tractor Test 102 fileReference

Belt fuel use (max)14.8 l/hourReference

Drawbar performanceReference

Max pull1486 kgReference

501ci distillate 3-speed 2WDJune 26 - July 2, 1935Link: Nebraska Tractor Test 236 fileReference

Belt fuel use (max)16.3 l/hourReference

Gear 2 used for power test.Reference

Max pull1831 kgReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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