Best Thirty
The Best Thirty is a tractor produced by Best. It is equipped with a 461 ci 7.6 L engine. The rated power output is 37.83 hp 28.2 kW. Transmission: 3 forward and 1 reverse. Drive type: crawler. Operating weight: 7400 lbs 3356 kg.
Engine Power
37.83 hp
28.2 kW
Drive & Traction
crawler
Fuel & Capacities
Gasoline
Transmission
3 forward and 1 reverse
Operating Weight
7400 lbs
3356 kg
Best Thirty Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
 | 1921 - 1925
Agricultural Crawler tractor |
|---|---|
1921 - 1925 | |
Agricultural Crawler tractor | |
Production | |
|---|---|
Manufacturer | Best |
Agricultural Crawler tractor | |
Built in San Leandro, California, USA | |
Best Thirty Engine | |
|---|---|
Best 7.6L 4-cyl gasoline | |
Engine details ...  |
Best Thirty Power | |
|---|---|
Plows | 4 |
Drawbar (tested) | 33.21 hp
24.8 kW |
Belt (tested) | 37.83 hp
28.2 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Drive | crawler |
Open operator station. | |
Dimensions & Tracks | |
|---|---|
Weight | 7400 lbs
3356 kg |
Tracks | |
Full dimensions and tracks ...  | |
Belt Pulley | |
|---|---|
Diameter | 12 inches
30 cm |
Width | 7 inches
17 cm |
RPM | 800 |
Speed | 2513 ft/min
765.96 meters/min |
Engine
Engine Detail — 461 ci / 7.6 L Gasoline
Manufacturer | Best |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 461 ci
7.6 L |
Bore/Stroke | 4.75x6.50 inches
121 x 165 mm |
Rated RPM | 850 |
Transmission
Transmission options | |
|---|---|
2-speed gear | |
3-speed gear |
Transmission — 2 forward and 1 reverse gear
Type | gear |
Gears | 2 forward and 1 reverse |
 | |
Transmission — 3 forward and 1 reverse gear
Type | gear |
Gears | 3 forward and 1 reverse |
 | |
Dimensions
Best Thirty Tracks |
|---|
Dimensions | |
|---|---|
Width | 53.25 inches
135 cm |
Height | 59 inches
149 cm |
Weight | 7400 lbs
3356 kg |
Tests
Tractor Tests | |
|---|---|
NTTL 77: 2-speed crawler | |
NTTL 99: 2-speed crawler | |
NTTL 104: 3-speed crawler |
Nebraska Tractor Test 77 | |
|---|---|
2-speed crawler
May 9 - 20, 1921
Link: Nebraska Tractor Test 77 file | |
Belt power (max) | 30.43 hp
22.7 kW |
Drawbar performance | |
Max power | 24.53 hp
18.3 kW |
Max pull | 4343 lbs
1969 kg |
Nebraska Tractor Test 99 | |
|---|---|
2-speed crawler
September 11 - 24, 1923
Link: Nebraska Tractor Test 99 file | |
Belt power (max) | 32.55 hp
24.3 kW |
Drawbar performance | |
Max power | 25.96 hp
19.4 kW |
Max pull | 4930 lbs
2236 kg |
Nebraska Tractor Test 104 | |
|---|---|
3-speed crawler
September 15 - 22, 1924
Link: Nebraska Tractor Test 104 file | |
Belt power (max) | 37.83 hp
28.2 kW |
Drawbar performance | |
Max power | 33.21 hp
24.8 kW |
Max pull | 7563 lbs
3430 kg |
Photos
Best Thirty
Related models
Best Sixty
- Power:
- 62.2
- Production years:
- 1919 - 1925
Best 75
- Power:
- 83.3
- Production years:
- 1913 - 1924