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Tractor · 1955Unverified

Allis Chalmers HD16AC

Name: Allis Chalmers HD16AC
Brand: Allis Chalmers

Allis Chalmers HD16AC — Agricultural Crawler tractor · 170 hp. Reference specifications; pending source verification.

The Allis Chalmers HD16AC is a tractor model with a power rating of approximately 170 hp, placing it at the high end of its class. It was produced between 1955 and 1970. The HD16AC features a 6-cylinder diesel liquid-cooled engine, combined with a tracked undercarriage and a 6-speed gearbox. Its listed operating weight is 14333 kg, and it is suitable for operations on 600–1,500 acres.

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

Rated power

170 hp

Max power

78.3 kW

Weight

14333 kg

Catalogue coverage

Variants represented

Richest spec table

45 rows

Recorded power

170 hp

Recorded weight

14333 kg

Transmissions

3-speed torque converter

Production years

1955-1970

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

Agricultural Crawler tractorReference

Built in Springfield, Illinois, USAReference

DrivecrawlerReference

Steeringhydraulic clutchesReference

Contracting band brakesReference

Open operator station.Reference

Variants

HD16A6-speedReference

HD16ACtorque converterReference

Engine

Allis Chalmers 13.8L 6-cyl dieselReference

Fuel tank378.5 LReference

Engine (gross)126.8 kWReference

Engine (net)111.9 kWReference

Drawbar (claimed)93.2 kWReference

Drawbar (tested)78.3 kWReference

Allis Chalmers 16000Reference

dieselReference

6-cylinderReference

liquid-cooledReference

Displacement13.8 LReference

Bore/Stroke133 x 165 mmReference

Power (net)111.9 kWReference

Power (gross)126.8 kWReference

Compression14.5:1Reference

Rated RPM1800Reference

StarterelectricReference

Starter volts24Reference

Coolant capacity70.0 LReference

Max power78.3 kWReference

Transmission

3-speed torque converterReference

Typetorque converterReference

Gears3 forward and 2 reverseReference

Dimensions

Weight14333 kgReference

20-inch tracksReference

Length459 cmReference

Width243 cmReference

Height229 cmReference

Ground clearance36 cmReference

Gauge187 cmReference

Allis Chalmers HD16AC Tracks

Width50 cmReference

Test results

Diesel 3-speed crawlerJuly 6 - 18, 1955Link: Nebraska Tractor Test 551 fileReference

Drawbar performanceReference

Gear 1 used for power test.Reference

Max pull13213 kgReference

Gear 1 used for pull test.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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