John Deere Unstyled D (1923-1939)

Last Updated: June 2024

Overview

The John Deere Unstyled D is an iconic standard-tread tractor that marked a significant presence in American agriculture during its manufacturing run from 1923 to 1939. It featured a 4x2 2WD chassis and was known for its rugged build and reliability. Throughout its years of production, it saw various updates, including changes to its physical dimensions and engine configurations. Owners of this early John Deere model cherished it for its simplicity and manual controls, including unsynchronized gear transmissions and manual steering. It predominantly ran on an all-fuel engine conducive to the agricultural practices of the era. Being a product of its time, it came with an open operator station and lacked the comforts found in modern-day tractors. Nevertheless, collectors and enthusiasts still regard the Unstyled D as a piece of agricultural history and a testament to the engineering prowess of John Deere.
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Key Specifications

Category: Utility, Standard Tread

Transmission: Unsynchronized gear

Drive Type: 2WD

Operating Weight: 5,886 (late specification)

Fuel Type: All-fuel

John Deere Unstyled D (1923-1939) vs. Similar Tractors

Operating Weight
Poor
Greater than 3% of similar tractors.

Technical Specifications

Engine

Manufacturer
John Deere
Model
Unstyled D
Cooling Type
Liquid-cooled
Cylinder Orientation
Inline
Valve Configuration
-
Fuel Type
All-fuel
Induction Type
Naturally aspirated (assuming as not specified and common for that era)
Cylinders
2
Displacement (ci)
501.0 (using the later specification)
Bore (in)
6.73 (using the later specification)
Stroke (in)
7.01
Rated RPM
-
Power Output (hp)
-

Transmission

Type
Unsynchronized gear
Forward Gears
3 (assuming the highest number provided)
Reverse Gears
1
Total Gears
-

Dimensions

Length (in)
129.9 (after 1930 assuming the longest length provided)
Width (in)
55.9
Height (in)
61.0 (after 1934 assuming the highest height provided)
Operating Weight (lb)
5,886 (late specification)

Power Take-Off (PTO)

PTO Type
Optional
PTO Speed 1 (rpm)
525 (assuming single speed as only one provided)
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4x2 2WD
Drive Type
2WD
Steering Type
Manual
Coolant Capacity (qts)
56 (using the later specification)
Front Tire Diameter (in)
-
Front Tire Width (in)
-
Rear Tire Diameter (in)
-
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
Steel (assuming the elemental composition due to age and provided values)
Manufacture - End Year
1939
Hitch Type
-
Hitch Category
Category 3 (assuming based on narrative)
Hitch Position
-
Hitch Capacity (lb)
-
Operator Station Type
Open
Starter Type
Electric
Brake Type
-
Hydraulic System Type
-