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Tractor · 1959Unverified

Allis Chalmers D12

Name: Allis Chalmers D12
Brand: Allis Chalmers

Allis Chalmers D12 — D Series · 29 hp. Reference specifications; pending source verification.

The Allis Chalmers D12 is a compact tractor model with a rating of 29 hp, produced from 1959 to 1968. It features a 4-cylinder petrol liquid-cooled engine and a 4-speed gearbox, driving through two-wheel drive. The tractor's weight is listed at 1270 kg, and it is suitable for tasks on areas of up to 200 acres.

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

Rated power

29 hp

Max power

17.6 kW

Weight

1270 kg

Catalogue coverage

Variants represented

Richest spec table

92 rows

Recorded power

29 hp

Recorded weight

1270 kg

Transmissions

4-speed sliding gear

Production years

1959-1968

Verified variants

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

Hover a source tag to verify

Overview

ManufacturerAllis ChalmersReference

Row-Crop tractorReference

Built in West Allis, Wisconsin, USAReference

Original price$3,522 (1968)Reference

Two-wheel driveReference

Open operator station.Reference

Variants

D12 High Clearancecultivation tractorReference

D10single-row tractorReference

Engine

Allis-Chalmers 2.3L 4-cyl gasolineReference

Allis-Chalmers 2.4L 4-cyl gasolineReference

Fuel tank47.3 LReference

Engine23.1 kWReference

Drawbar (claimed)19.2 kWReference

Drawbar (tested)21.9 kWReference

Allis-ChalmersReference

gasolineReference

4-cylinderReference

liquid-cooled vertical L-headReference

Original engine, used until 149 ci engine appeared in 1961.Reference

Displacement2.3 LReference

Bore/Stroke86 x 98 mmReference

Power23.1 kWReference

Air cleaneroil bathReference

Compression7.75:1Reference

Rated RPM1650Reference

Starter volts6Reference

Oil capacity3.8 LReference

Coolant capacity7.6 LReference

liquid-cooledReference

The larger, 149 cubic inch, engine was introduced on the D12 at serial number 3001 in 1961.Reference

Displacement2.4 LReference

Bore/Stroke89 x 98 mmReference

Compression7.5:1Reference

Firing order1-2-4-3Reference

Power at rated engine speed21.3 kWReference

Max power17.6 kWReference

Power at rated engine speed24.8 kWReference

Max power21.9 kWReference

Transmission

4-speed sliding gearReference

Typesliding gearReference

Gears4 forward and 1 reverseReference

PTO & Hydraulics

PTO (claimed)22.4 kWReference

PTO (tested)24.8 kWReference

TypeliveReference

Valves1 or 2Reference

Rear TypeIReference

TypeSnap-CoupleReference

Rear PTO Type540Reference

Dimensions

Wheelbase200 cmReference

Weight1270 kgReference

Front tire5.00x15Reference

Rear tire10x24Reference

Ag front5.00x15Reference

Ag rear10x24Reference

Ag rear11x24Reference

Length307 cmReference

Height (hood)133 cmReference

Height (exhaust)194 cmReference

Shipping weight1270 kgReference

Ballasted weight2553 kgReference

Clearance (front axle)51 cmReference

Clearance (rear axle)56 cmReference

Front tread125 to 203 cmReference

Rear tread132 to 201 cmReference

D12 Serial Number Location

Serial number stamped into the flange where the engine and transmission meet on the left side of the tractor.Reference

D12 Serial Numbers

19591001Reference

19601950Reference

19612801Reference

19623638Reference

19635501Reference

19646012Reference

19659192Reference

19669508Reference

19679830Reference

FAQ: How to read a serial number table.Reference

Capacities

RPM1220Reference

Speed779.07 meters/minReference

Test results

NTTL 723: 138 gasoline 4-speed 2WDReference

NTTL 813: 149 gasoline 4-speed 2WDReference

138 gasoline 4-speed 2WDOctober 13 - 20, 1959Link: Nebraska Tractor Test 723 fileReference

PTO performanceReference

Fuel use8.7 l/hourReference

Drawbar performanceReference

Fuel use8.3 l/hourReference

Gear 3 used for power test.Reference

Max pull1832 kgReference

Gear 1 used for pull test.Reference

149 gasoline 4-speed 2WDApril 4 - 19, 1962Link: Nebraska Tractor Test 813 fileReference

Fuel use10.2 l/hourReference

Fuel use10.6 l/hourReference

Max pull1923 kgReference

Speeds

Allis D12 with 10x24 rear tires.Reference

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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