Introduction
Ford 641 Utility Tractor
The Ford 641 is a utility tractor produced between 1957 and 1962 in Highland Park, Michigan, USA. As part of the 640 series, this two-wheel-drive model was designed for general agricultural applications, offering a balance of mechanical simplicity and operational capability.
Engine and Performance
The tractor is powered by the liquid-cooled Ford EAE Red Tiger engine. This 4-cylinder, 8-valve unit features a 134 cubic-inch (2.2 L) displacement and a compression ratio of 7.5:1. It is rated at 2200 RPM, delivering 48 horsepower to handle various field tasks efficiently.
Transmission and Drivetrain
The standard transmission is a 4-speed unsynchronized gear unit paired with a 254mm dry disc clutch. An optional 12-speed transmission configuration is available, which incorporates a mechanical over/under gear set to provide greater speed flexibility during operation. The tractor utilizes differential mechanical expanding shoe brakes for stopping control.
Hydraulics and Implement Attachment
The Ford 641 is equipped with an open-center hydraulic system providing a total flow of 4 gallons per minute (15.1 lpm) and a fluid capacity of 2 gallons (7.6 L). It features a Category I rear hitch with both position and draft control, capable of lifting up to 1,250 lbs (567 kg) to accommodate a variety of implements.
Dimensions and Handling
With an operating weight of 3,291 lbs (1,492 kg), the tractor provides stability for light to medium-duty field work. It features manual steering, with power-assist available as an option. The rear tread width is adjustable between 52 and 76 inches, while the front tread ranges from 52 to 80 inches, allowing the machine to be adapted to different crop row spacings.
Conclusion
The Ford 641 is a versatile utility tractor suited for small-to-medium agricultural operations. Its robust engine, flexible transmission options, and standard Category I hitch make it a reliable choice for farmers requiring a dependable, manageable machine for general field and utility work.
Production Information of Ford, 641
- An orchard variant was also available, with a model number of 641-21.
- Original price was $3,096 in 1961
- Utility tractor
- Built in Highland Park, Michigan, USA
| Manufacturer | Ford |
|---|
Dimension and Tires Information of Ford, 641
| Operating weight | 3291 lbs [1492 kg] |
|---|---|
| Rear tread | 52 to 76 inches [132 to 193 cm] |
| Ballasted weight | 5523 lbs [2505 kg] |
| Front tread | 52 to 80 inches [132 to 203 cm] |
| Ag front | 5.50-16 |
|---|---|
| Ag rear | 11-28 |
Engine Specifications of Ford, 641
- Ford EAE Red Tiger
- Liquid-cooled vertical inline
- LP gas
- 4-cylinder 8-valve
| Coolant capacity | 15 qts [14.2 L] |
|---|---|
| Starter volts | 6 |
| Rated RPM | 2200 |
| Sparkplug | 14MM |
| Starter volts | 6 |
| Firing order | 1-2-4-3 |
| Firing order | 1-2-4-3 |
| Displacement | 134 ci [2.2 L] |
| Compression | 7.5:1 |
| Bore/Stroke | 3.4375x3.60 inches [87 x 91 mm] |
| Firing order | 1-2-4-3 |
| Sparkplug gap | 0.025 inches (min) [0.635 mm] |
| Sparkplug gap(optional) | 0.028 inches (max) [0.711 mm] |
| Torque RPM | 1600 |
| Starter volts | 12 |
Transmission Information of Ford, 641
Transmission variants 1
| Manufacturer | Ford |
|---|---|
| Oil capacity | 6 qts [5.7 L] |
| Clutch | 254mm dry disc |
| Type | Unsynchronized gear |
| Oil type | SAE 80 Mild EP |
| Gears | 4 forward and 1 reverse |
Transmission variants 2
- The 12-speed adds a mechanical over/under to the basic four-speed transmission.
| Type | Unsynchronized gear |
|---|---|
| Gears | 12 forward and 3 reverse |
| Clutch | Dry disc |
- 4-speed unsynchronized gear
- 12-speed unsynchronized gear
Mechanical Specs of Ford, 641
- Two-wheel drive
- Open operator station.
- Differential mechanical expanding shoe brakes
| Steering | Manual |
|---|---|
| Steering(optional) | Power assist optional |
Power Information of Ford, 641
| Rear PTO | Transmission |
|---|---|
| Rear PTO Type | 540 (1.375) |
Hydraulics Specifications of Ford, 641
| Type | Open center |
|---|---|
| Capacity | 2 gal [7.6 L] |
| Total flow | 4 gpm [15.1 lpm] |
Three-Point Hitch of Ford, 641
| Rear Type | I |
|---|---|
| Control | Position and draft control |
| Rear lift | 1250 lbs [567 kg] |
Electrical System of Ford, 641
| Battery AH | 80 (6V) |
|---|---|
| Ground | Positive (6V) |
| Battery volts | 6 (gas/lp) |
| Charging amps | 20 |
| Charging amps(optional) | Negative (12V) |
| Charging amps(optional) | 135 (12V) |
| Charging amps(optional) | 12 (diesel) |
| Charging system | Generator |
Where it sits
With 48 HP, the Ford 641 sits just above 640 (33 HP) in Ford's range. Its power puts it in the 71th percentile of 1950s models in our database (592 machines).
Frequently asked questions
How much horsepower does the Ford 641 have?
The Ford 641 delivers 48 HP.
What years was the Ford 641 produced?
The Ford 641 was produced in 1957-1962.
What engine does the Ford 641 have?
The Ford 641 is powered by a LP gas, 4-cylinder 8-valve engine.
What transmission does the Ford 641 use?
The Ford 641 uses a Unsynchronized gear transmission.
How much does the Ford 641 weigh?
The Ford 641 weighs 3291 lbs [1492 kg].
Is the Ford 641 4WD?
The Ford 641 is available in 2WD.