Allis Chalmers lawn tractors

Allis Chalmers B-12

The Allis Chalmers B-12 is a garden tractor produced from 1966 to 1968 as part of the B Series. It was built in Port Washington, Wisconsin, USA. It features a 12 horsepower Briggs & Stratton 494cc 1-cylinder gasoline engine with an air-cooled horizontal shaft. The tractor offers 3-speed and 6-speed gear transmission options, with two-wheel drive and manual steering. It has live PTOs at the front, mid, and rear. The B-12 has a wheelbase of 44 inches and comes with lawn/turf tires sized 6.50x8 front and 23-8.50x12 rear. Attachments include 32 and 42 inch mid-mount mower decks. The serial number plate is located on the rear fender deck behind the seat.
Power-
Founded-
ModelB-12

Technical Specifications

Detailed specifications and technical data for Allis Chalmers B-12

Engine
Typegasoline
ModelBriggs & Stratton 300421
Power12 hp (8.9 kW)
Coolingair-cooled horizontal-shaft
Starterelectric
Cylinders1-cylinder
Fuel tank1.5 gal (5.7 L)
Rated RPM3600
Air cleaneroiled foam
Bore/Stroke3.25x3.4375 inches (83 x 87 mm)
Displacement494 cc (30.16 ci)
Oil capacity2 qts (1.9 L)
Starter volts12
Overview
SeriesB Series
Built inPort Washington, Wisconsin, USA
CategoryGarden tractor
Production years1966 - 1968
Dimensions
Width36.5 inches (92 cm)
Height37.5 inches (95 cm)
Length68.1 inches (172 cm)
Rear tire23-8.50x12
Wheelbase44 inches (111 cm)
Front tire6.50x8
Ground clearance6 inches (15 cm)
Attachments
32 inch mid-mount mower deck32 inches (81 cm)
42 inch mid-mount mower deck42 inches (106 cm)
Transmission
Typegear
Options3-speed gear, 6-speed
Gears (3-speed)3 forward and 1 reverse
Gears (6-speed Hi-Lo)6 forward and 2 reverse
Other features
DriveTwo-wheel drive
SteeringManual steering
Operator stationOpen operator station
Power Take-off (PTO)
Mid PTOlive
Rear PTOlive
Front PTOlive
Serial Number Location
LocationSerial number plate on the rear fender deck of the B-12, behind the seat.