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Lawn Tractor · 1961Unverified

Allis Chalmers B-1

Name: Allis Chalmers B-1
Brand: Allis Chalmers

Allis Chalmers B-1 — B Series · 7 hp. Reference specifications; pending source verification.

The Allis Chalmers B-1 is a lawn tractor with a rated power of 7 hp, categorising it as a lighter model in its class. This model was manufactured between 1961 and 1963. The B-1 features a 1-cylinder petrol air-cooled engine, paired with two-wheel drive and a 3-speed gearbox. Its listed operating weight is 272 kg, making it suitable for operations covering up to 200 acres.

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

Rated power

7 hp

Weight

272 kg

Catalogue coverage

Variants represented

Richest spec table

44 rows

Recorded power

7 hp

Recorded weight

272 kg

Transmissions

3-speed gear

Production years

1961-1963

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

DistributorAllis ChalmersReference

ManufacturerSimplicityReference

Garden tractorReference

Built in Port Washington, Wisconsin, USAReference

Two-wheel driveReference

Manual steeringReference

Open operator station.Reference

Engine

7.25HP Briggs & Stratton 304cc 1-cyl gasolineReference

Fuel tank5.7 LReference

Briggs & Stratton 19DReference

gasolineReference

1-cylinderReference

air-cooled horizontal-shaftReference

Displacement18.55 ciReference

Bore/Stroke76 x 67 mmReference

Power5.4 kWReference

Air cleaneroil bathReference

Rated RPM3600Reference

StarterelectricReference

Starter volts12Reference

Oil capacity1.4 LReference

Transmission

3-speed gearReference

Typeshaft-driven gearReference

Gears3 forward and 1 reverseReference

PTO & Hydraulics

Rear PTOliveReference

Mid PTOliveReference

Front PTOliveReference

Dimensions

Wheelbase111 cmReference

Weight272 kgReference

Front tire4.80x8Reference

Rear tire6.00x12Reference

Lawn/turf front4.80x8Reference

Lawn/turf rear6.00x12Reference

Length172 cmReference

Width86 cmReference

Height94 cmReference

Shipping weight272 kgReference

Ground clearance15 cmReference

Allis Chalmers B-1 attachments

42" mid-mount mower deckReference

Links

Allis-Chalmers B-1: information, photos and old advertising literature at SimpleTractors.comReference

Electrical

GroundnegativeReference

Battery volts12Reference

42" Mower deck

Typemid-mount Allis-ChalmersReference

Cutting width106 cmReference

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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