Thieman Harvester Theiman

Name: Thieman Harvester Theiman
Brand: Thieman Harvester

Power

40 hp

Production

1936-1942

Engine

Gasoline, 4-cylinder

Transmission

Gear

Drive

2WD

40–60 HP 1930s 1940s

Introduction

Thieman Harvester (1936-1942)

The Thieman Harvester is an American kit-built tractor manufactured in Albert City, Iowa, between 1936 and 1942. Designed for flexibility, this machine was marketed as a kit that allowed owners to customize their tractor by installing various automotive engines, most commonly the Ford Model A unit.

Engine and Performance

The tractor was primarily designed to house a 4-cylinder, liquid-cooled gasoline engine. While the Ford Model A engine was standard, the modular nature of the kit allowed for the installation of alternative engines from Ford, General Motors, or Dodge. With a displacement of 201 cubic inches (3.3 liters) and a rated operating speed of 2200 RPM, the unit produced approximately 40 horsepower. The engine configuration features a bore and stroke of 3.875 by 4.25 inches with a compression ratio of 5.9:1.

Transmission and Drivetrain

The power is delivered to the ground through a two-wheel drive system. The transmission is a manual gear-type unit, providing three forward gears and one reverse gear, allowing for basic speed control during operation.

Operator Environment and Design

The Thieman features a standard open operator station, consistent with the design practices of the era. Steering is managed via a manual mechanical system. Due to the kit-based construction method, each individual tractor may exhibit unique structural or mechanical modifications depending on the specific engine and components selected by the original assembler.

Conclusion

"The Thieman Harvester serves as a unique example of 1930s custom agricultural engineering. Its kit-built nature makes it a machine of significant interest to collectors, as the flexibility in engine sourcing ensures that no two units are identical in their mechanical configuration."

Introduction

Production Information of Thieman Harvester, Theiman

The production information of the tractor (Theiman) includes details about its manufacturing.

Built in Albert City, Iowa, USA

The Thieman was a kit tractor sold by the Thieman Harvester Company. The kit was available with the Ford model A engine, or the buyer could supply their own Ford, General Motors, or Dodge engine. Because of the kit nature, every Thieman is unique.


Manufacturer	Thieman Harvester

Dimension and Tires Information of Thieman Harvester, Theiman

This section sums up the dimension and tires information of the tractor.

No data available

Engine Specifications of Thieman Harvester, Theiman

Get the specifications for the engine and if different options are available.

Ford

The engine from the Ford model A was available with the Thieman although other engines could be used.

Liquid-cooled

Gasoline

4-cylinder


Bore/Stroke	3.875x4.25 inches [98 x 108 mm]
Power	40 hp [29.8 kW]
Displacement	201 ci [3.3 L]
Rated RPM	2200
Compression	5.9:1

Transmission Information of Thieman Harvester, TheimanY

Discover all variants of transmission available for this tractor model.

Transmission variants 1


Type	Gear
Gears	3 forward and 1 reverse

Mechanical Specs of Thieman Harvester, TheimanY

This section summarizes all mechanical information such as the brake system and other specifications.

Two-wheel drive

Open operator station.


Steering	Manual

Power Information of Thieman Harvester, TheimanY

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Engine	40 hp [29.8 kW]

Frequently asked questions

How much horsepower does the Thieman Harvester Theiman have?

The Thieman Harvester Theiman delivers 40 HP.

What years was the Thieman Harvester Theiman produced?

The Thieman Harvester Theiman was produced in 1936-1942.

What engine does the Thieman Harvester Theiman have?

The Thieman Harvester Theiman is powered by a Gasoline, 4-cylinder engine.

What transmission does the Thieman Harvester Theiman use?

The Thieman Harvester Theiman uses a Gear transmission.

Is the Thieman Harvester Theiman 4WD?

The Thieman Harvester Theiman is available in 2WD.

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