Allis Chalmers B-1
Power
7 hp
Production
1961-1963
Engine
Gasoline, 1-cylinder
Transmission
Shaft-driven gear
Weight
600 lbs [272 kg]
Drive
2WD
Introduction
Allis Chalmers B-1 Garden Tractor
The Allis Chalmers B-1 is a compact garden tractor manufactured by Simplicity in Port Washington, Wisconsin, and produced between 1961 and 1963. Designed for property maintenance and light horticultural tasks, this model serves as a representative example of early 1960s American garden equipment.
Engine and Powertrain
The tractor is powered by a Briggs & Stratton 19D single-cylinder gasoline engine. It features a 304 cc displacement with a 3.00 by 2.625-inch bore and stroke. The engine is air-cooled and utilizes an oil bath air cleaner to protect internal components from debris. It operates at a rated speed of 3600 RPM and delivers 7.25 horsepower (5.4 kW). The electrical system is supported by a 12-volt battery and an electric starter.
Transmission and PTO
The B-1 utilizes a shaft-driven gear transmission offering three forward speeds and one reverse gear. A key feature of this model is its multi-point power take-off (PTO) system. It is equipped with live rear, mid, and front PTOs, allowing for the simultaneous or independent operation of various attachments, such as the included 42-inch mower deck.
Chassis and Dimensions
Built on a two-wheel-drive chassis, the tractor features manual steering and an open operator station. Its compact dimensions include a 44-inch wheelbase, a total length of 68 inches, and a width of 34.25 inches. With a shipping weight of 600 lbs (272 kg) and a ground clearance of 6 inches, the unit is engineered for maneuverability in tight garden environments. It rides on 4.80x8 front and 6.00x12 rear turf tires.
Conclusion
The Allis Chalmers B-1 is a robust, entry-level garden tractor suited for homeowners and collectors requiring a reliable machine for lawn care and light utility work. Its combination of a simple gear-driven transmission and versatile PTO configuration provides a practical solution for classic tractor enthusiasts.
Production Information of Allis Chalmers, B-1
- Built in Port Washington, Wisconsin, USA
- Garden tractor
| Distributor | Allis Chalmers |
|---|---|
| Manufacturer | Simplicity |
Dimension and Tires Information of Allis Chalmers, B-1
| Wheelbase | 44 inches [111 cm] |
|---|---|
| Shipping weight | 600 lbs [272 kg] |
| Height | 37.3 inches [94 cm] |
| Length | 68 inches [172 cm] |
| Ground clearance | 6 inches [15 cm] |
| Width | 34.25 inches [86 cm] |
| Lawn/turf front | 4.80x8 |
|---|---|
| Lawn/turf rear | 6.00x12 |
Engine Specifications of Allis Chalmers, B-1
- Briggs & Stratton 19D
- Air-cooled horizontal-shaft
- Gasoline
- 1-cylinder
| Starter volts | 12 |
|---|---|
| Displacement | 304 cc [18.55 ci] |
| Air cleaner | Oil bath |
| Bore/Stroke | 3.00x2.625 inches [76 x 67 mm] |
| Oil capacity | 1.5 qts [1.4 L] |
| Starter | Electric |
| Rated RPM | 3600 |
| Power | 7.25 hp [5.4 kW] |
Transmission Information of Allis Chalmers, B-1
Transmission variants 1
| Type | Shaft-driven gear |
|---|---|
| Gears | 3 forward and 1 reverse |
Mechanical Specs of Allis Chalmers, B-1
- Two-wheel drive
- Manual steering
- Open operator station.
Power Information of Allis Chalmers, B-1
| Rear PTO | Live |
|---|---|
| Mid PTO | Live |
| Front PTO | Live |
Electrical System of Allis Chalmers, B-1
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
With 7 HP, the Allis Chalmers B-1 sits between Homesteader 6 (6 HP) and 508 (8 HP) in Allis Chalmers's range. Its power puts it in the 66th percentile of 1960s models in our database (550 machines).
Frequently asked questions
How much horsepower does the Allis Chalmers B-1 have?
The Allis Chalmers B-1 delivers 7 HP.
What years was the Allis Chalmers B-1 produced?
The Allis Chalmers B-1 was produced in 1961-1963.
What engine does the Allis Chalmers B-1 have?
The Allis Chalmers B-1 is powered by a Gasoline, 1-cylinder engine.
What transmission does the Allis Chalmers B-1 use?
The Allis Chalmers B-1 uses a Shaft-driven gear transmission.
How much does the Allis Chalmers B-1 weigh?
The Allis Chalmers B-1 weighs 600 lbs [272 kg].
Is the Allis Chalmers B-1 4WD?
The Allis Chalmers B-1 is available in 2WD.