Ford 641

Last Updated: July 2024

Overview

The Ford 641 is a 2WD utility tractor from the 601 Workmaster series, manufactured by Ford in Highland Park, Michigan, USA between 1957 and 1962. It is powered by a Ford EAE Red Tiger gasoline/LP-gas engine with a displacement of 134 cubic inches. The liquid-cooled, four-cylinder inline engine produces 32.8 hp at 2200 rpm and a maximum torque of 156 lb-ft (212 Nm) at 1200 rpm. This tractor features an unsynchronized gear transmission with four forward and one reverse gear. The Ford 641 has manual steering, differential mechanical expanding shoe brakes, an open center hydraulic system with a pump delivery of 5.5 GPM (20.8 l/min) and a maximum pressure of 1200 psi (82.74 bar). It operated on 28-inch agricultural tires and had a fuel efficiency of 10.96 Hp.hr/gal (2.20 kW.h/l) at the standard 540 rpm PTO speed. The operating weight is 3,285 pounds with a coolant capacity of 15 quarts.

Key Specifications

Category: Utility

Power Output: 32.8

Transmission: Unsynchronized gear

Drive Type: 2WD

Operating Weight: 3285

Fuel Type: Gasoline/LP-gas

Image Gallery

Ford 641 Tractor

Ford 641 vs. Similar Tractors

Power Output

Average

Greater than 46% of similar tractors.

Operating Weight

Below Average

Greater than 28% of similar tractors.

Technical Specifications

Engine

Manufacturer: Ford
Model: EAE Red Tiger
Cooling Type: Liquid-cooled
Cylinder Orientation: Inline
Valve Configuration: -
Fuel Type: Gasoline/LP-gas
Induction Type: Naturally aspirated
Cylinders: 4
Displacement (ci): 134
Bore (in): 3.43
Stroke (in): 3.58
Rated RPM: 2200
Power Output (hp): 32.8

Transmission

Type: Unsynchronized gear
Forward Gears: 4
Reverse Gears: 1
Total Gears: -

Dimensions

Length (in): -
Width (in): -
Height (in): -
Operating Weight (lb): 3285

Power Take-Off (PTO)

PTO Type: Transmission
PTO Speed 1 (rpm): 540
PTO Speed 2 (rpm): -
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: 4x2
Drive Type: 2WD
Steering Type: Manual
Coolant Capacity (qts): 15
Front Tire Diameter (in): -
Front Tire Width (in): -
Rear Tire Diameter (in): 28
Rear Tire Width (in): -
Front/Rear Rim Diameter (in): -
Tire Type: Agricultural
Manufacture - End Year: 1962
Hitch Type: -
Hitch Category: -
Hitch Position: -
Hitch Capacity (lb): -
Operator Station Type: Open
Starter Type: Electric
Brake Type: Differential mechanical expanding shoe
Hydraulic System Type: Open Center

Test Results

Nebraska Tractor Test Laboratory - Test Date: January 1, 1958

Maximum Power and Fuel Consumption

Maximum Power: 32.97 HP (24.59 kW) at 2201 rpm
Fuel Consumption at Maximum Power: 2.94 Gal/hr (11.13 l/h) with a fuel efficiency of 0.538 lb/hp.hr (0.327 kg/kW.h)
Fuel Consumption at Rated Speed: 2.90 Gal/hr (10.97 l/h) at 2200 rpm

Drawbar Performance

Maximum Drawbar Power: 28.03 HP (20.91 kW)
Drawbar Pull at Maximum Power: 2608 lbs (11.60 kN)
Travel Speed at Maximum Power: 3.97 mph (6.39 km/h)

Hydraulic Performance

Hydraulic Pump Delivery: 5.5 GPM (20.8 l/min)

Additional Data

Rated Engine Speed: 2200 rpm

Nebraska Tractor Test Lab.(1958). Test 642: Ford Model 641. Lincoln, NE: University of Nebraska-Lincoln. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/1082