Allis-Chalmers Model G
Two allis chalmers model G's
Model history
Model introduced 1948
Model discontinued 1955
Model status Discontinued
Superseded by Allis-Chalmers G2
Engine Specification
Engine make Continental
Engine model N62
Power hp 10
Power kW 7.5
Governed rpm 1800
Displacement cu in /(litre) 62 cu in
No. of Cylinders 4
Bore in (mm) 2-3/8 in
Stroke in (mm) 3.5 in
Cooling system Water
Transmission Details
Transmission type non-synchronized
Forward 3
Reverse 1
Drive 2WD
Linkage Category Unknown
Other info
Factories Gadsden, Alabama, USA
Plow rating Unknown
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The Model G was unique for it's rear-mounted, Continental N62 engine. It was a four-cylinder engine with a 2-3/8 x 3-1/2 inch bore and stroke. The Model G was designed for small farms and vegetable gardeners, and had it's own line of implements specifically designed for it, including ploughs, planters, and cultivators. The design of the Model G allowed for a great view of the belly-mounted implements. Allis-Chalmers later also marketed it under their Simplicity brand as the Simplicity GII.

Later on, the Hefty G, GBT 2000, John Blue G-1000 and Saukville tractors were all based on the AC G design.


The Model G was manufactured solely in the factory in Gadsden, Alabama, USA, from 1948 to 1955. 29,976 units were built, which is less than Allis-Chalmers had originally hoped for. The Model G had a 5 gallon fuel tank, weighed 1,285 pounds, and was rated at 10 hp (7.5 kW) at the drawbar (Tested at 10.33 belt and 9.04 drawbar). The engine had a displacement of 62 cubic inches and was rated at 1800 RPMs. The transmission was a non-synchronized three-speed with reverse.


Allis Chalmers G-8816

A Model G (from Flickr)

Very few of this model were imported into the UK, its tool-carrier tractor design competed with locally built tractors like the David Brown 2D, the Bean tractor and other similar models built at that time in the niche Market garden market.

Known examples
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List of Preserved Allis-Chalmers Model G tractors
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Make + Model No. Reg No.
(if known)
Serial No. Build-Date Engine-Type/Make Owner
(if known)
Photo Were seen/Featured in Other info
Fill in with your data ? sn if known year engine owner Image needed LHB

seen at misc
Model G Two allis chalmers model G's No details known
Image needed LHB

Image needed LHB

Please add any tractor with known reg or serial no. with Photo if possible.
Create a page (link) for an individual tractor by linking the reg or serial number using reg number or serial number in the relevant column. Then once saved click the red link to start the new page and add info on that tractor.

Owners ClubsEdit

In the UK their is an Allis-Chalmers Owners Club which attends several of the big UK Shows with a display tent and a number of restored tractors and literature displays and club merchandise. They had a tractor display at the Great Dorset Steam Fair 50th anniversary show.

See alsoEdit

References / sourcesEdit

Wxternal linksEdit

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