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Best Sixty

Best Sixty tractor
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The Best Sixty is an agricultural crawler tractor produced from 1919 to 1925 by Best in San Leandro, CA. It features a Best 18.5L 4-cylinder gasoline liquid-cooled engine rated at 650 RPM. The tractor offers 2-speed and 3-speed gear transmission options with crawler drive and an open operator station. It weighs 17,500 lbs and measures 140 inches in length, 90 inches in width, and 76.5 inches in height. The tractor is capable of pulling 9 14-inch plows and has tested drawbar power of 56 hp and belt power of 73 hp.
Best SixtyBest tractorcrawler tractor18.5L engine2-speed gear3-speed gearagricultural tractortractor specifications
Power62 hp[B]
Founded1919 - 1925
ModelSixty

Technical Specifications

Detailed specifications and technical data for Best Sixty

Power

Plows:9 (14-inch)
Belt (tested):73 hp (54.4 kW)
Drawbar (tested):56 hp (41.8 kW)

Engine

Details:Best gasoline 4-cylinder liquid-cooled
Rated RPM:650
Bore/Stroke:6.50x8.50 inches (165 x 216 mm)
Displacement:1128.2 ci (18.5 L)
Engine model:Best 18.5L 4-cyl gasoline

Dimensions

Width:90 inches (228 cm)
Height:76.5 inches (194 cm)
Length:140 inches (355 cm)
Weight:17500 lbs (7938 kg)

Mechanical

Drive:crawler
Operator station:Open operator station.

Production

Type:Agricultural Crawler tractor
Built in:San Leandro, CA
Years produced:1919 - 1925

Belt Pulley

RPM:650
Speed:2720 ft/min (829.06 meters/min)
Width:12 inches (30 cm)
Diameter:16 inches (40 cm)

Transmission

2-speed gear

Type:gear
Gears:2 forward and 1 reverse

3-speed gear

Type:gear
Gears:3 forward and 1 reverse
Transmission options:2-speed gear, 3-speed gear

Related Models

Best Sixty

Model:Sixty