| Manufacturer | Farmall |
| Price | 1,000(USD) |
| Model | F-20 |
| Equipment Type | Row-Crop Tractors |
| Factory | Rock Island, Illinois, USA |
ENGINE DETAIL
The Farmall F-20 features a 4-cylinder, liquid-cooled engine with a displacement of 220.9 ci (3.6L), optimal for sustaining torque at lower RPMs (rated at 1200 RPM), making it advantageous for plowing and tilling tasks. Its bore and stroke dimensions (3.75 x 5 inches) suggest a longer stroke for improved torque but potentially at the expense of higher RPM performance. The coolant capacity varies (40 qts for early models and 29 qts for later), which influences cooling efficiency—consider verifying the cooling system condition to avoid overheating in extended operations.
| Description | International Harvester distillate 4-cylinder liquid-cooled vertical I-head |
| Displacemen | 220.9ci / 3.6L |
| Bore/Strok | 3.75x5.00inches / 95x 127mm |
| Rated RP | 1200 |
| Firing orde | 1-3-4-2 |
| Coolant capacit | 40qts (early) / 37.9L 29qts (late) / 27.4L |
FARMALL F-20 ENGINE
The Farmall F-20 features a robust 3.6L four-cylinder distillate engine, ideal for efficient fuel consumption, particularly with its 13-gallon main fuel tank which allows for extended operational periods between refuels. The auxiliary fuel capacity of 0.875 gallons offers additional flexibility, useful for powering implements or as a reserve. However, its relatively low fuel tank capacity may be a limitation for extended heavy-duty tasks, necessitating careful planning in larger agricultural scenarios.
| Description | International Harvester 3.6L 4-cyl distillate |
| Fuel tan | 13gal / 49.2L |
| Aux. fue | 0.875gal / 3.3L |
TRANSMISSION
The Farmall F-20 tractor features a sliding gear transmission with 4 forward and 1 reverse gear, providing operational simplicity for various farming tasks. Its 279.4mm mechanical dry disc clutch ensures reliable power transfer but may require more maintenance compared to hydraulic systems. This tractor is well-suited for smaller farms and specialized applications, where ease of use and robust mechanical solutions are essential.
| Typ | sliding gear |
| Gear | 4 forward and 1 reverse |
| Clutc | 279.4mm mechanical dry disc |
FARMALL F-20 TRANSMISSION
The Farmall F-20 features a 4-speed sliding gear transmission, which allows for smoother shifting and better torque management in varying field conditions. This setup optimizes power delivery during plowing or heavy towing tasks but can present challenges in operator familiarity due to potential gear grinding in less experienced hands. Overall, its robust design makes it suitable for moderate farm operations, emphasizing reliability and ease of maintenance over advanced speed capabilities.
| Description | 4-speed sliding gear |
MECHANICAL
The Farmall F-20 is a two-wheel drive tractor featuring manual steering and mechanical band brakes, which ensures simplistic operation but may pose challenges in maneuverability, especially in tight spaces. Its open operator station provides good visibility and airflow, beneficial for long working hours; however, it lacks weather protection, which can be a disadvantage in adverse conditions. This model is ideal for small to medium-scale farming tasks where low maintenance and ease of use are prioritized over advanced technology.
| Description | Two-wheel drive Manual steering Mechanical band brakes Open operator station |
POWER TAKE-OFF (PTO)
| Rear PT | transmission |
| Rear RP | 540 (1.125) |
| Engine RP | 505@1200 |
FARMALL F-20 TIRES
The Farmall F-20 features a front tire size of 25x4 and rear tire options of 40x6, 42x12, or 9.00x36, all steel, which can enhance its durability but may impact traction and ride comfort on uneven terrain. The relatively narrow front tires allow for easier maneuverability in tight spaces, suitable for row-crop applications, while the wider rear tires provide stability but can cause soil compaction in softer ground conditions. Proper tire selection based on your farming scenario is crucial to optimize performance, particularly when balancing load capacity and terrain adaptability.
| Ag fron | 25x4 (steel) |
| Ag rea | 40x6 (steel)/42x12 (steel)/9.00x36 |
DIMENSIONS & TIRES
The Farmall F-20 features a wheelbase of 85 inches, which provides enhanced stability during operation while minimizing the turning radius. With a weight of 4,400 lbs, it offers good traction on various terrains; however, this weight could challenge transportability and fuel efficiency. The tire specifications of 25x4 in the front and 40x6 in the rear suggest a balanced design favoring field work over high-speed road transport, making it ideal for plowing and cultivating but potentially less efficient for highway travel.
| Wheelbas | 85inches / 215cm |
| Weigh | 4400lbs / 1995kg |
| Front tir | 25x4 |
| Rear tir | 40x6 |
F-20 SERIAL NUMBERS
| 193 | TA-135000 (old style countershaft) |
| Fina | FA-148810 |
F-20 SERIAL LOCATION
| Description | Serial number plate under the fuel tank of the Farmall F-20 |
BELT PULLEY
| Diamete | 14inches / 35cm |
| Widt | 6.5inches / 16cm |
| RP | 654 |
| Spee | 2395ft/min / 730.00meters/min |