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Years in Production / 1919–1925

Best

Sixty

Explore the specifications, hardware, and original references for the Best Sixty.

Generic tractor; no model photo available
No photo

62hp

Engine estimate · from belt

Tracks

Drive

1919–1925

Production years

Best

Manufacturer

Sixty / 01

At a glance

Production

Agricultural Crawler tractor

Built in San Leandro, CA

Manufacturer
Best

Mechanical

Open operator station.

Drive
crawler

Belt Pulley

Diameter
16 inches40 cm
Width
12 inches30 cm
Rpm
650
Speed
2720 ft/min829.06 meters/min

Sixty / 02

Under the hood

Engine Detail

Best

gasoline

4-cylinder

liquid-cooled

Displacement
1128.2 ci18.5 L
Bore Stroke
6.50x8.50 inches165 x 216 mm
Rated Rpm
650
Fuel Type
gasoline
Cylinders
4
Cooling
liquid-cooled

Sixty / 03

Gears & controls

Transmission (Option 1)

Transmission Type
gear
Gears
2 forward and 1 reverse

Transmission (Option 2)

Transmission Type
gear
Gears
3 forward and 1 reverse

Sixty / 04

Size. Stance. Footprint.

Dimensions

Length
140 in355 cm
Width
90 in228 cm
Height
76.5 in194 cm

Tires And Tracks

Tracks

Weight
17500 lbs7938 kg

Sixty / 05

Tests (NTTL)

Nebraska Tractor Test 76

Gasoline 2-speed crawlerMay 6 - 24, 1921

Drawbar performance

Id
76
Belt Power Max
56 hp41.8 kW
Max Power
50 hp37.3 kW
Max Pull
11,000 lbs4989 kg

Nebraska Tractor Test 98

Gasoline 3-speed crawlerSeptember 10 - 14, 1923

Drawbar performance

Id
98
Belt Power Max
66 hp49.2 kW
Max Power
56 hp41.8 kW
Max Pull
11295 lbs5123 kg

Nebraska Tractor Test 105

Gasoline 3-speed crawlerSeptember 15 - 29, 1924

Drawbar performance

Id
105
Belt Power Max
73 hp54.4 kW
Max Pull
12360 lbs5606 kg