Overview
The Holt 5-Ton is an agricultural crawler tractor produced between 1919 and 1925, also known as the Holt T-11 or 25-40. It features a 7.0L four-cylinder gasoline engine and a 10,000-pound crawler chassis equipped with an open operator station. Nebraska Tractor Test 59 verified the machine at 36 hp for belt work and 33 hp for drawbar applications.
Ideal Applications
Tested Drawbar Performance:
Nebraska Tractor Test 59 recorded a maximum drawbar power of 33 hp and a maximum pull of 5558 lbs using its three-speed crawler transmission.
Engine and Power Output:
The liquid-cooled 425 ci Holt gasoline engine is rated at 1050 RPM and produced 36 hp during belt pulley testing.
Transmission and Drive Layout:
This crawler-drive tractor utilizes a gear transmission with three forward gears and one reverse gear to manage its 10,000-pound operating weight.
Production
| Description | Agricultural Crawler tractor / Also known as the Holt T-11 or 25-40. |
|---|---|
| Manufacturer | Holt |
Engine
| Engine type | Holt 7.0L 4-cyl gasoline |
|---|---|
| Bore/Stroke | 4.75x6.00 inches (121 x 152 mm) |
| Description | Holt / gasoline / 4-cylinder / liquid-cooled |
| Displacement | 425 ci (7.0 L) |
| Rated RPM | 1050 |
| Belt (tested) | 36 hp (26.8 kW) |
| Drawbar (tested) | 33 hp (24.6 kW) |
Transmission
| Gears | 3 forward and 1 reverse |
|---|---|
| Transmission type | 3-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive | crawler |
Dimensions & Tires
| Weight | 10000 lbs (4536 kg) |
|---|
Dimensions & Tracks
| Description | Tracks |
|---|---|
| Weight | 10000 lbs (4536 kg) |
Nebraska Tractor Test 59
| Belt power (max) | 36 hp (26.8 kW) |
|---|---|
| Description | Drawbar performance |
| Max power | 33 hp (24.6 kW) |
| Max pull | 5558 lbs (2521 kg) |
| Transmission type | 3-speed crawlerAugust 30 - September 17, 1920Link: Nebraska Tractor Test 59 file |
References
| Description | Care and Operation of "Caterpillar" 5 Ton Tractor (0-131) published in 1919 |
|---|