Massey-Harris 21 Colt Specs ( 1952-1953 )
Overview
The Massey-Harris 21 Colt is a row-crop tractor built in Racine, Wisconsin, featuring updated sheet metal over the foundation of the previous model 20. Powered by a 2.0L Continental 4-cylinder gasoline engine, it delivers a claimed 21.6 drawbar horsepower and is capable of pulling two 14-inch plows.
Ideal Applications
Row-Crop Operations:
With an adjustable rear tread up to 80 inches and a tricycle front option, this tractor is designed for versatility in various row-crop configurations.
Plowing and Tillage:
Equipped to handle two 14-inch plows and a claimed 28.34 belt horsepower, this machine is suited for primary tillage tasks on mid-sized acreage.
Stationary Power Tasks:
The integrated belt pulley system, operating at 1224 RPM and 3044 ft/min, provides efficient power for driving stationary farm implements.
Production
| Description | Row-Crop tractor / Built in Racine, Wisconsin, USA / The Massey-Harris 21 Colt was essentially the model 20, updated with new sheet metal. |
|---|---|
| Manufacturer | Massey-Harris |
Engine
| Engine type | Continental 2.0L 4-cyl gasoline |
|---|---|
| Bore/Stroke | 3.00x4.375 inches (76 x 111 mm) |
| Description | Continental F124 / gasoline / 4-cylinder / liquid-cooled |
| Displacement | 124 ci (2.0 L) |
| Rated RPM | 1800 |
| Belt (claimed) | 28.34 hp (21.1 kW) |
| Drawbar (claimed) | 21.6 hp (16.1 kW) |
| Plows | 2 (14-inch) |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 4 forward and 1 reverse |
| Transmission type | 4-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive type | Two-wheel drive |
| Final drives | bevel gear |
| Steering | manual |
Hitch
| Rear Type | I (optional) |
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PTO
| Rear PTO | transmission |
|---|---|
| Rear PTO Type | 540 |
Dimensions & Tires
| Front tread | 6.7/12.3 inches (tricycle) (17/31 cm) / 52 to 74 inches (adjustable) (132 to 187 cm) |
|---|---|
| Ground clearance | 19.3 inches (49 cm) |
| Height | 65.8 inches (167 cm) |
| Length | 123.3 inches (313 cm) |
| Rear tread | 52 to 80 inches (132 to 203 cm) |
| Wheelbase | 82.7 inches (210 cm) |
| Front tire | 4x15 |
| Rear tire | 10x28 |
| Wheelbase | 82.7 inches (210 cm) |
| Ag front | 4x15 |
| Ag rear | 10x28 |
21 Colt Serial Numbers
| 1952 | 1001 |
|---|---|
| 1953 | 1417 |
| 1954 | 2669 |
| Description | FAQ: How to read a serial number table. |
Belt Pulley
| Diameter | 9.5 inches (24 cm) |
|---|---|
| RPM | 1224 |
| Speed | 3044 ft/min (927.81 meters/min) |
| Width | 6.25 inches (15 cm) |
References
| Description | Power For Your Farm published in 1953, by Massey-Harris / Massey-Harris Tractors published in 1954 |
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