Tractor · 1958Unverified
Ford 981
Ford 981 — 901 Powermaster Series · 63 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
63 hp
Weight
1496 kg
Hover a source tag to verify
Overview
ManufacturerFordReference
Row-Crop tractorReference
Built in Highland Park, Michigan, USAReference
The Ford 981 Powermaster featured a dual-speed independent PTO, three-point hitch, and the Ford Select-O-Speed transmission.Reference
Two-wheel driveReference
Steeringpower assistReference
Differential mechanical expanding shoe brakesReference
Open operator station.Reference
Variants
881utility chassisReference
941four-speedReference
951five-speedReference
961five-speed, live PTOReference
971Select-O-SpeedReference
981Select-O-Speed, dual-speed PTOReference
Engine
Ford 2.8L 4-cyl gasolineReference
Ford 2.8L 4-cyl LP gasReference
Ford 2.8L 4-cyl dieselReference
Engine46.7 kWReference
Belt (claimed)29.8 kWReference
Plows3 (14-inch)Reference
Ford EAFReference
gasolineReference
4-cylinder 8-valveReference
liquid-cooled vertical overhead valveReference
Displacement2.8 LReference
Bore/Stroke99 x 91 mmReference
Power46.7 kWReference
Air cleaneroil bathReference
Compression7.5:1Reference
Rated RPM2000Reference
Torque225.1 NmReference
Torque RPM1600Reference
Firing order1-2-4-3Reference
Starter volts6Reference
Coolant capacity14.2 LReference
Sparkplug gap0.686 mmReference
Point gap0.635 mmReference
Intake valve clearance0.381 mmReference
Exhaust valve clearance0.381 mmReference
Oil capacity4.7 LReference
Oil change100 hReference
LP gasReference
liquid-cooledReference
Compression8.65:1Reference
Rated RPM2200Reference
FordReference
dieselReference
Power42.0 kWReference
Compression16.8:1Reference
Torque190.4 NmReference
Torque RPM1400Reference
Starter volts12Reference
Transmission
10-speed full power shiftReference
TransmissionFord Select-O-SpeedReference
Typefull power shiftReference
Gears10 forward and 2 reverseReference
Clutchhydraulic wet discsReference
Oil typeM2C41Reference
Capacities
Fuel64.3 LReference
PTO & Hydraulics
Hydraulic system7.6 LReference
Typeopen centerReference
Capacity7.6 LReference
Pressure137.9 barReference
Total flow15.1 lpmReference
Rear TypeIReference
Rear lift567 kgReference
Rear PTOindependentReference
Rear PTO Type540/1000Reference
Dimensions
Weight1496 kgReference
Front tire5.50-16Reference
Rear tire12-28Reference
Ag front5.50-16Reference
Ag rear12-28Reference
Length336 cmReference
Height167 cmReference
Ground clearance70 cmReference
Front tread21 to 41 cmReference
Rear tread142 to 203 cmReference
981 Serial Number Location
Left side of tractor, on top of transmission case behind the starter.Reference
981 Serial Numbers
19571001Reference
195811977Reference
195958312Reference
1960105943Reference
1961131427Reference
1962155531Reference
FAQ: How to read a serial number table.Reference
Electrical
Groundpostitive (6V)Reference
Groundnegative (12V)Reference
Charging systemgeneratorReference
Charging amps20Reference
Battery volts6 (gas/lp)Reference
Battery volts12 (diesel)Reference
Battery AH80 (6V)Reference
Battery AH135 (12V)Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.