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Tractor · 1919Unverified

Best Sixty

Name: Best Sixty
Brand: Best

Best Sixty — Agricultural Crawler tractor · 56 hp. Reference specifications; pending source verification.

The Best Sixty is a tractor model with a rated power of 56 hp, positioning it within the lighter end of its class. Manufactured from 1919 to 1925, this model features a 4-cylinder petrol liquid-cooled engine paired with a tracked undercarriage and 2-speed gearbox. It has an operating weight of 7938 kg and is suitable for operations covering areas of up to 200 ac.

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

Rated power

56 hp

Max power

37.3 kW

Weight

7938 kg

Catalogue coverage

Variants represented

Richest spec table

45 rows

Recorded power

56 hp

Recorded weight

7938 kg

Transmissions

2-speed gear

Production years

1919-1925

Verified variants

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

Hover a source tag to verify

Overview

ManufacturerBestReference

Agricultural Crawler tractorReference

Built in San Leandro, CAReference

DrivecrawlerReference

Open operator station.Reference

Engine

Best 18.5L 4-cyl gasolineReference

Plows9 (14-inch)Reference

Drawbar (tested)41.8 kWReference

Belt (tested)54.4 kWReference

BestReference

gasolineReference

4-cylinderReference

liquid-cooledReference

Displacement18.5 LReference

Bore/Stroke165 x 216 mmReference

Rated RPM650Reference

Belt power (max)41.8 kWReference

Max power37.3 kWReference

Belt power (max)49.2 kWReference

Max power41.8 kWReference

Belt power (max)54.4 kWReference

Transmission

2-speed gearReference

3-speed gearReference

TypegearReference

Gears2 forward and 1 reverseReference

Gears3 forward and 1 reverseReference

Dimensions

Weight7938 kgReference

TracksReference

Length355 cmReference

Width228 cmReference

Height194 cmReference

Capacities

Diameter40 cmReference

Width30 cmReference

RPM650Reference

Speed829.06 meters/minReference

Test results

NTTL 76: gasoline 2-speed crawlerReference

NTTL 98: gasoline 3-speed crawlerReference

NTTL 105: gasoline 3-speed crawlerReference

Gasoline 2-speed crawlerMay 6 - 24, 1921Link: Nebraska Tractor Test 76 fileReference

Drawbar performanceReference

Max pull4989 kgReference

Gasoline 3-speed crawlerSeptember 10 - 14, 1923Link: Nebraska Tractor Test 98 fileReference

Max pull5123 kgReference

Gasoline 3-speed crawlerSeptember 15 - 29, 1924Link: Nebraska Tractor Test 105 fileReference

Max pull5606 kgReference

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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