Manufacturer |
Farmall |
Price |
- |
Model |
BM |
Equipment Type |
Row-Crop Tractors |
Factory |
Doncaster, England |
VARIANTS
ENGINE DETAIL
The Farmall BM tractor features a durable International Harvester tvo 4-cylinder engine with a sizable displacement of 247.7 ci (4.1L), providing robust torque suitable for heavy-duty farming tasks. Its bore and stroke dimensions (3.875x5.25 inches) suggest a long-stroke design, enhancing low-end power and torque delivery, although it may result in lower peak RPM compared to short-stroke engines. An electric starter simplifies operation, reducing the physical effort required for ignition, making it user-friendly for operators of various skill levels.
Description |
International Harvester tvo 4-cylinder liquid-cooled |
Displacement |
247.7ci / 4.1L |
Bore/Stroke |
3.875x5.25inches / 98x 133 mm |
Starter type |
electric |
FARMALL BM ENGINE
The Farmall BM tractor is powered by a 4.1L International Harvester four-cylinder TVO engine, known for its efficiency and torque output, making it suitable for various agricultural tasks. Key advantages include its reliable performance and fuel economy, while challenges could include sourcing replacement parts due to its vintage nature. Ideal for small to medium-sized farms, it excels in tilling, planting, and general utility work, especially in less demanding environments.
Description |
International Harvester 4.1L 4-cyl tvo |
TRANSMISSION
The Farmall BM features a simple 5 forward and 1 reverse gear configuration, which enhances maneuverability for typical farming tasks. Its gear type contributes to ease of operation but might limit speed range compared to tractors with more gear options. Ideal for small to medium-sized agricultural operations, this tractor excels in versatility but may face challenges in high-speed applications or heavy-duty tasks.
Type |
gear |
Gears |
5 forward and 1 reverse |
MECHANICAL
The Farmall BM features a 4x2 two-wheel drive chassis, providing adequate traction for lighter tasks but may struggle on uneven terrain compared to 4WD models. Its manual steering can be less responsive, leading to operator fatigue during extended use, particularly in tight spaces. The 5-speed transmission offers versatility in speed and torque management, which is beneficial for various farming applications, but users should be aware of potential shifting difficulties under load.
Chassis |
4x2 2WD |
Steering |
manual |
Cab |
Open operator station. |
Transmission |
5-speed gear |
BM SERIAL NUMBERS
1949 |
D1001 |
1950 |
D1259 |
1951 |
BFC6211 |
1952 |
BFC6590 |
1953 |
BFC9485 |
1954 |
BFC10432 |
Final |
BFC10846 |