Tractor · 1958Unverified
Ford Powermaster 821
Ford Powermaster 821 — 801 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
2637 to 3500 pounds
Hover a source tag to verify
Overview
ManufacturerFordReference
Utility tractorReference
Built in Highland Park, Michigan, USAReference
The Ford 821 was advertised as a "special utility" model with only the most basic options. The 821 had no PTO or hydraulics.Reference
Two-wheel driveReference
SteeringmanualReference
Steeringpower assist optionalReference
Differential mechanical expanding shoe brakesReference
Open operator station.Reference
Variants
811Select-O-Speed, no PTOReference
821Four-speed, no PTO or 3-pointReference
841Four-speedReference
851Five-speedReference
861Five speed, live PTOReference
871Select-O-SpeedReference
881Select-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
Fuel tank64.3 LReference
Engine (gross)46.7 kWReference
Engine42.0 kWReference
Drawbar (claimed)32.8 kWReference
Belt (claimed)37.3 kWReference
Plows3Reference
Ford EAFReference
gasolineReference
4-cylinder 8-valveReference
liquid-cooled vertical overhead valveReference
Displacement2.8 LReference
Bore/Stroke99 x 91 mmReference
Power (gross)46.7 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
4-speed unsynchronized gearReference
12-speedReference
ManufacturerFordReference
Typeunsynchronized gearReference
Gears4 forward and 1 reverseReference
Clutch254mm dry discReference
Oil capacity5.7 LReference
Oil typeSAE 80Reference
TransmissionSherman Step-Up Step-downReference
Gears12 forward and 3 reverseReference
Auxiliary gearbox provides over, under, and direct-drive to the basic four-speed transmission.Reference
PTO & Hydraulics
Rear PTOtransmissionReference
Rear PTO Type540Reference
Dimensions
Wheelbase189 cmReference
Weight2637 to 3500 poundsReference
Front tire6.00x16Reference
Rear tire10x28Reference
Ag front6.00x16Reference
Ag rear10x28Reference
Length306 cmReference
Width162 cmReference
Height145 cmReference
Clearance (front axle)54 cmReference
Front tread132 to 203 cmReference
Rear tread121 to 193 cmReference
Shipping1196 kgReference
Operating1587 kgReference
Ballasted2204 kgReference
821 Serial Number Location
Left side of tractor, on top of transmission case behind the starter.Reference
821 Serial Numbers
19571001Reference
195811977Reference
195958312Reference
1960105943Reference
1961131427Reference
1962155531Reference
FAQ: How to read a serial number table.Reference
Electrical
Groundpositive (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.