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Ford 641

Ford 641 tractor
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The Ford 641 is a utility tractor produced from 1957 to 1962 as part of the 601 Workmaster Series. It was built in Highland Park, Michigan, USA. The tractor features a 48.4 hp engine and was available with gasoline, diesel, or LP gas engines. It has a 4-speed or optional 12-speed unsynchronized transmission, two-wheel drive, and an open operator station. The 641 was offered with various transmission and PTO options and had an orchard variant model 641-21. It was originally priced at $3,096 in 1961. The tractor supports a variety of attachments including a front-end loader with a 1000 lbs lift capacity.
Ford 641Ford 601 Workmasterutility tractortractor specificationsfarm tractor48.4 hp tractorFord tractor
Power48 hp
Founded1957 - 1962
Model641

Technical Specifications

Detailed specifications and technical data for Ford 641

Power

Plows:2 (14-inch)
PTO (tested):31.78 hp (23.7 kW)
Belt (tested):33.65 hp (25.1 kW)
Belt (claimed):32 hp (23.9 kW)
Engine (gross):48.4 hp (36.1 kW)
Drawbar (tested):29.82 hp (22.2 kW)

Engine

Torque:126.8 lb-ft (171.9 Nm)
Options:Ford 2.2L 4-cyl gasoline, Ford 2.4L 4-cyl diesel, Ford 2.2L 4-cyl LP gas
Emissions:Tier 0
Rated RPM:2200
Sparkplug:14MM
Torque RPM:1600
Air cleaner:oil bath
Bore/Stroke:3.4375x3.60 inches (87 x 91 mm)
Compression:7.5:1
Displacement:134 ci (2.2 L)
Firing order:1-2-4-3
Power (gross):48.4 hp (36.1 kW)
Sparkplug gap:0.025 inches (min) (0.635 mm), 0.028 inches (max) (0.711 mm)
Starter volts:6
Coolant capacity:15 qts (14.2 L)
Rated RPM LP gas:2200
Rated RPM diesel:2200
Air cleaner diesel:oil bath
Bore/Stroke LP gas:3.4375x3.60 inches (87 x 91 mm)
Bore/Stroke diesel:3.562x3.60 inches (90 x 91 mm)
Compression LP gas:7.5:1
Compression diesel:16.8:1
Ford diesel engine:4-cylinder 8-valve, liquid-cooled vertical inline
Displacement LP gas:134 ci (2.2 L)
Displacement diesel:144 ci (2.4 L)
Firing order LP gas:1-2-4-3
Firing order diesel:1-2-4-3
Power (gross) diesel:42.7 hp (31.8 kW)
Starter volts LP gas:6
Starter volts diesel:12
Ford EAE Red Tiger LP gas:4-cylinder 8-valve, liquid-cooled vertical inline
Ford EAE Red Tiger gasoline:4-cylinder 8-valve, liquid-cooled vertical inline

Capacity

Fuel:13 gal (49.2 L)
Rear axle:8 qts (7.6 L)
Hydraulic system:2 gal (7.6 L)

Variants

611:Select-O-Speed, no PTO
621:Four-speed, no PTO or 3-point
631:Four-speed, no PTO
641:Four-speed
651:Five-speed
661:Five-speed, live PTO
671:Select-O-Speed
681:Select-O-Speed, dual-speed PTO

Electrical

Ground:positive (6V), negative (12V)
Battery AH:80 (6V), 135 (12V)
Battery volts:6 (gas/lp), 12 (diesel)
Charging amps:20
Charging system:generator

Engine Oil

Oil capacity:5 qts (4.7 L)
Oil change interval:100 h

Hydraulics

Type:open center
Capacity:2 gal (7.6 L)
Total flow:4 gpm (15.1 lpm)

Mechanical

Drive:Two-wheel drive
Brakes:Differential mechanical expanding shoe brakes
Steering:manual, power assist optional
Operator station:Open operator station

Production

Type:Utility tractor
Series:601 Workmaster Series
Built in:Highland Park, Michigan, USA
Original price:$3,096 in 1961
Years produced:1957 - 1962
Orchard variant:641-21

Attachments

Weight:593 lbs (268 kg)
Boom rod:2.5 inches (6 cm)
Reach dumped:36.1 inches (91 cm)
Height at pin:126 inches (320 cm)
Lift capacity:1000 lbs lift (full at pin) (453 kg)
Breakout force:2500 lbs breakout (at pin) (1134 kg)
Clearance level:96 inches (243 cm)
Clearance dumped:80 inches (203 cm)
front-end loader:711 Loader

Transmission

Type:unsynchronized gear
Oil type:SAE 80 Mild EP
Manufacturer:Ford
Gears 4-speed:4 forward and 1 reverse
Clutch 4-speed:254mm dry disc
Gears 12-speed:12 forward and 3 reverse
Notes 12-speed:The 12-speed adds a mechanical over/under to the basic four-speed transmission.
Clutch 12-speed:dry disc
Oil capacity 4-speed:6 qts (5.7 L)
Transmission options:4-speed unsynchronized gear, 12-speed unsynchronized gear

Tractor hitch

Control:position and draft control
Rear Type:I
Rear lift:1250 lbs (567 kg)

Serial Numbers

1957:1001
1958:11977
1959:58312
1960:105943
1961:131427
1962:155531

Dimensions & Tires

Weight:3291 lbs (1492 kg)
Rear tire:11-28
Front tire:5.50-16
Rear tread:52 to 76 inches (132 to 193 cm)
Front tread:52 to 80 inches (132 to 203 cm)
Ballasted weight:5523 lbs (2505 kg)
Operating weight:3291 lbs (1492 kg)

Power Take-off (PTO)

Rear PTO:transmission
Rear PTO Type:540 (1.375)