Tractors > Ford > 661

Ford 661



Ford 661 tractor photo
1957 - 1961
601 Workmaster Series
Utility tractor
Series map:
661
48.4hp
Production
ManufacturerFord
Utility tractor
Built in Highland Park, Michigan, USA
Original price was $3,222 in 1961
Variants
611Select-O-Speed, no PTO
621Four-speed, no PTO or 3-point
631Four-speed, no PTO
641Four-speed
651Five-speed
661Five-speed, live PTO
671Select-O-Speed
681Select-O-Speed, dual-speed PTO
Ford 661 Engines
Ford 2.2L 4-cyl gasoline
Ford 2.4L 4-cyl diesel
Ford 2.2L 4-cyl LP gas
Engine details ...
Ford 661 Transmission
5-speed gear
Transmission details ...
Ford 661 Power
Engine (gross)48.4 hp
36.1 kW
Belt (claimed)32 hp
23.9 kW
Plows2 (14-inch)
Mechanical
Two-wheel drive
Steeringmanual
 power assist optional
Differential mechanical expanding shoe brakes
Open operator station.
Photos
Ford 661
Ford 661 photos...
Capacity
Fuel13 gal
49.2 L
Hydraulic system2 gal
7.6 L
Rear axle8 qts
7.6 L
Hydraulics
Typeopen center
Capacity2 gal
7.6 L
Total flow4 gpm
15.1 lpm
Tractor hitch
Rear TypeI
Controlposition and draft control
Rear lift1250 lbs
567 kg
Power Take-off (PTO)
Rear PTOlive
Rear PTO Type540 (1.375)
Engine RPM540@1800
Dimensions & Tires
Weight3321 lbs
1506 kg
Front tire5.50-16
Rear tire11-28
Full dimensions and tires ...
661 Serial Number Location
Ford 661 serial number location
Transmission case, top left, behind the starter.
661 Serial Numbers
19571001
195811977
195958312
1960105943
1961131427
1962155531

FAQ: How to read a serial number table.
Electrical
Groundpositive (6V)
 negative (12V)
Charging systemgenerator
Charging amps20
Battery volts6 (gas/lp)
 12 (diesel)
Battery AH80 (6V)
 135 (12V)
References
661 references literature
Tractors For Industrial Use published in 1958, by Ford
1955-1960 Tractor Shop Manual (SE-8175) published in 1961
Owner's Manual Series 601 and 801 (SE6085C) published in 1957
Power Up with Ford published in 1957
Diesel Tractors published in 1959, by Ford
New Ford 601 Series Workmaster Tractors published in 1957
New Ford Workmaster Tractors published in 1957
Page information
Peter Easterlund - owner of TractorData.com
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Peter Easterlund - owner/author
This machine's data modified on July 13, 2026
https://www.dmcretail.com/newholland - Official Ford operator manuals from CNH.
©2000-2026 - TractorData.com®. Notice: Every attempt is made to ensure the data listed is accurate. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. Consult official literature from the manufacturer before attempting any service or repair.