Ford 641 tractor specifications

1957 - 1962

1957 - 1962 601 Workmaster SeriesUtility tractor

Production

Production Manufacturer:Ford
Type:Utility tractor
Factory:Highland Park, Michigan, USA
Original price:$3,096 (1961 )
This tractor was one of the models that made the 601 Workmaster series. An orchard variant was also available, with a model number of 641-21.

Variants

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

1957 - 1961

601 Workmaster Series

Utility tractor

Production

Production
Manufacturer:	Ford
Type:	Utility tractor
Factory:	Highland Park, Michigan, USA
Original price:	$3,222 (1961)
This is one of the models that made the 601 Workmaster series

Variants

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

Ford 611 Power

Ford 611 Power
Engine (gross):	48.4 hp 36.1 kW
Belt (claimed):	32 hp 23.9 kW
Plows:	2 (14-inch)

Ford 611 Engines

Ford 611 Engines
Ford 2.2L 4-cyl gasoline
Ford 2.4L 4-cyl diesel
Ford 2.2L 4-cyl LP gas
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
Steering:	manual
	power assist optional
Brakes:	differential mechanical expanding shoe
Cab:	Open operator station.
Transmission:	10-speed full power shift
Transmission details ...

Capacity

Capacity
Fuel:	13 gal 49.2 L
Rear axle:	8 qts 7.6 L

Dimensions & Tires

Dimensions & Tires
Weight:	3321 lbs 1506 kg
Front tire:	5.50-16
Rear tire:	10-28
Full dimensions and tires ...

611 Serial Numbers

611 Serial Numbers
Location:	Transmission case, top left, behind the starter.
1957:	1001
1958:	11977
1959:	58312
1960:	105943
1961:	131427
1962:	155531
how to read serial numbers...

Electrical

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

Ford 641 Power

Ford 641 Power Engine (gross):48.4 hp
36.1 kW
Belt (claimed):32 hp
23.9 kW
Plows:2 (14-inch)
Drawbar (tested):29.82 hp
22.2 kW
PTO (tested):31.78 hp
23.7 kW
Belt (tested):33.65 hp
25.1 kW
power test details ...

1957 - 1962

601 Workmaster Series

Utility tractor

Nebraska Tractor Test 642

Nebraska Tractor Test 642
Gasoline 12-speed 2WD March 20 - 31, 1958 Link: Nebraska Tractor Test 642 file
Belt power (max):	33.65 hp 25.1 kW
Belt fuel use (max):	3.4 gal/hour 12.9 l/hour
Drawbar performance
Max power:	29.82 hp 22.2 kW
Gear 5 used for power test.
Max pull:	4,101 lbs 1860 kg
Gear 1 used for pull test.

Nebraska Tractor Test 686

Nebraska Tractor Test 686
Diesel 12-speed 2WD March 11 - 18, 1959 Link: Nebraska Tractor Test 686 file
PTO performance
Power at rated engine speed:	31.78 hp 23.7 kW
Fuel use:	2.2 gal/hour 8.3 l/hour
Power at rated PTO speed:	25.29 hp 18.9 kW
Fuel use:	1.8 gal/hour 6.8 l/hour
Drawbar performance
Max power:	29.33 hp 21.9 kW
Fuel use:	2.3 gal/hour 8.7 l/hour
Gear 5 used for power test.
Max pull:	4,230 lbs 1918 kg
Gear 1 used for pull test.

Ford 641 Engines

Ford 641 Engines Ford 2.2L 4-cyl gasoline Ford 2.4L 4-cyl diesel Ford 2.2L 4-cyl LP gas Engine details ...

1957 - 1962

601 Workmaster Series

Utility tractor

Engines overview

Engines overview
Ford 2.2L 4-cyl gasoline
Ford 2.4L 4-cyl diesel
Ford 2.2L 4-cyl LP gas

Engine Detail

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

Engine Oil

Engine Oil

Oil capacity:	5 qts 4.7 L
Oil change:	100 h

Engine Detail

Engine Detail
Ford
diesel
4-cylinder 8-valve
liquid-cooled vertical inline
Displacement:	144 ci 2.4 L
Bore/Stroke:	3.562x3.60 inches 90 x 91 mm
Power (gross):	42.7 hp 31.8 kW
Air cleaner:	oil bath
Compression:	16.8:1
Rated RPM:	2200
Firing order:	1-2-4-3
Starter volts:	12

Engine Detail

Engine Detail
Ford EAE Red Tiger
LP gas
4-cylinder 8-valve
liquid-cooled vertical inline
Displacement:	134 ci 2.2 L
Bore/Stroke:	3.4375x3.60 inches 87 x 91 mm
Compression:	7.5:1
Rated RPM:	2200
Firing order:	1-2-4-3
Starter volts:	6

Mechanical

Mechanical Chassis:4x2 2WD
Steering:manual
power assist optional
Brakes:differential mechanical expanding shoe
Cab:Open operator station.
Transmissions:4-speed unsynchronized gear
12-speed unsynchronized gear
Transmission details ...

1957 - 1962

601 Workmaster Series

Utility tractor

Transmissions overview

Transmissions overview
4-speed unsynchronized gear
12-speed unsynchronized gear

Transmission

Manufacturer:

Ford

Type:

unsynchronized gear

Gears:

4 forward and 1 reverse

Oil capacity:

6 qts
5.7 L

Oil type:

SAE 80 Mild EP

Transmission

Transmission
Manufacturer:	Ford
Type:	unsynchronized gear
Gears:	12 forward and 3 reverse
Clutch:	dry disc
The 12-speed adds a mechanical over/under to the basic four-speed transmission.

Speeds

Speeds

Capacity

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

Hydraulics

Hydraulics Capacity:2 gal
7.6 L
Total flow:4 gpm
15.1 lpm

Tractor hitch

Tractor hitch Rear Type:I
Rear lift:1,250 lbs
567 kg

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:transmission
Rear RPM:540

Dimensions & Tires

Dimensions & Tires Weight:3,291 lbs
1492 kg
Front tire:5.50-16
Rear tire:11-28
Full dimensions and tires ...

1957 - 1962

601 Workmaster Series

Utility tractor

Ford 641 Tires

Ford 641 Tires
Ag front:	5.50-16
Ag rear:	11-28

Dimensions

Dimensions
Operating weight:	3,291 lbs 1492 kg
Ballasted weight:	5,523 lbs 2505 kg
Front tread:	52 to 80 inches 132 to 203 cm
Rear tread:	52 to 76 inches 132 to 193 cm

Ford 641 attachments

Ford 641 attachments front-end loader Attachment details ...

1957 - 1962

601 Workmaster Series

Utility tractor

Ford 711 Loader

Ford 711 Loader
Loader weight:	593 lbs 268 kg
Height (to pin):	126 inches 320 cm
Clearance, dumped bucket:	80 inches 203 cm
Dump reach:	36.1 inches 91 cm
Clearance, level bucket:	96 inches 243 cm
Breakout force (at pin):	2500 lbs 1134 kg
Lift to full height (at pin):	1000 lbs 453 kg

641 Serial Numbers

641 Serial Numbers Location:Transmission case, top left, behind the starter.
1957:1001
1958:11977
1959:58312
1960:105943
1961:131427
1962:155531

how to read serial numbers...

Electrical

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