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Ford 841 Powermaster

The Ford 841 Powermaster is a utility tractor produced from 1957 to 1961 as part of the 801 Powermaster Series. It was built in Highland Park, Michigan, USA, and originally priced at $3,080 in 1957. The tractor features a 2.8L 4-cylinder engine available in gasoline, LP gas, and diesel variants, with power outputs ranging from 56.3 hp to 62.6 hp gross. It offers a 4-speed unsynchronized gear transmission with an optional 12-speed Sherman Step-Up Step-down auxiliary gearbox. The tractor is two-wheel drive with manual steering and optional power assist, equipped with mechanical expanding shoe brakes and an open operator station. It has a fuel capacity of 17 gallons and a hydraulic system capacity of 2 gallons with 2000 psi pressure. The rear hitch is type I with a lift capacity of 1250 lbs, and the rear PTO operates at 540 rpm. The tractor weighs between 2958 and 3487 pounds and rides on 6.00-16 front tires and 12-28 rear tires. Electrical system includes a generator charging system with 6V or 12V battery options depending on engine type. Attachments include a front-end loader with detailed specifications. The serial number is located on the left side of the tractor on top of the transmission case behind the starter.
Ford 841Powermastertractorspecificationsenginetransmissionutility tractor19571961
Power62 hp
Founded1957 - 1961
Model841

Technical Specifications

Detailed specifications and technical data for Ford 841 Powermaster

Power

Plows:3 14-inch
Engine:56.3 hp (42.0 kW)
Belt (tested):44.71 hp (33.3 kW)
Belt (claimed):50 hp (37.3 kW)
Engine (gross):62.6 hp (46.7 kW)
Drawbar (tested):41.44 hp (30.9 kW)
Drawbar (claimed):44 hp (32.8 kW)

Engine

Options:Ford 2.8L 4-cyl gasoline, Ford 2.8L 4-cyl LP gas, Ford 2.8L 4-cyl diesel

Engine Oil

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

Ford Diesel

Type:4-cylinder 8-valve, liquid-cooled
Power:56.3 hp (42.0 kW)
Torque:140.4 lb-ft (190.4 Nm)
Rated RPM:2200
Torque RPM:1400
Air cleaner:oil bath
Bore/Stroke:3.90x3.60 inches (99 x 91 mm)
Compression:16.8:1
Displacement:172 ci (2.8 L)
Firing order:1-2-4-3
Starter volts:12

Ford EAF LP gas

Type:4-cylinder 8-valve, liquid-cooled
Point gap:0.025 inches (0.635 mm)
Rated RPM:2200
Air cleaner:oil bath
Bore/Stroke:3.90x3.60 inches (99 x 91 mm)
Compression:8.65:1
Displacement:172 ci (2.8 L)
Firing order:1-2-4-3
Sparkplug gap:0.027 inches (0.686 mm)
Starter volts:6
Intake valve clearance:0.015 inches (hot) (0.381 mm)
Exhaust valve clearance:0.015 inches (hot) (0.381 mm)

Ford EAF Gasoline

Type:4-cylinder 8-valve, liquid-cooled vertical overhead valve
Torque:166 lb-ft (225.1 Nm)
Point gap:0.025 inches (0.635 mm)
Rated RPM:2000
Torque RPM:1600
Air cleaner:oil bath
Bore/Stroke:3.90x3.60 inches (99 x 91 mm)
Compression:7.5:1
Displacement:172 ci (2.8 L)
Firing order:1-2-4-3
Power (gross):62.6 hp (46.7 kW)
Sparkplug gap:0.027 inches (0.686 mm)
Starter volts:6
Coolant capacity:15 qts (14.2 L)
Intake valve clearance:0.015 inches (hot) (0.381 mm)
Exhaust valve clearance:0.015 inches (hot) (0.381 mm)

Capacity

Fuel:17 gal (64.3 L)
Hydraulic system:2 gal (7.6 L)

Variants

811:Select-O-Speed, no PTO
821:Four-speed, no PTO or 3-point
841:Four-speed
851:Five-speed
861:Five speed, live PTO
871:Select-O-Speed
881:Select-O-Speed, dual-speed PTO
941:row-crop chassis

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

Hydraulics

Type:open center
Capacity:2 gal (7.6 L)
Pressure:2000 psi (137.9 bar)
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:801 Powermaster Series
Built in:Highland Park, Michigan, USA
Original price:$3,080 in 1957
Years produced:1957 - 1961

Attachments

front-end loader:711 Loader with 1000 lbs lift (full at pin) (453 kg), 2500 lbs breakout (at pin) (1134 kg), 36.1 inches reach (dumped) (91 cm), 126 inches height (at pin) (320 cm), 80 inches clearance (dumped) (203 cm), 96 inches clearance (level) (243 cm), boom rod: 2.5 inches (6 cm), weight: 593 lbs (268 kg)

Transmission

Type:unsynchronized gear
Gears:4 forward and 1 reverse
Oil type:SAE 80
Manufacturer:Ford
Oil capacity:6 qts (5.7 L)

Additional transmission

Note:Auxiliary gearbox provides over, under, and direct-drive to the basic four-speed transmission. Tractors equipped with the transmission were marked 841S.
Type:Sherman Step-Up Step-down
Gears:12 forward and 3 reverse
Oil type:SAE 80
Oil capacity:6 qts (5.7 L)

Tractor hitch

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:2958 to 3487 pounds
Rear tire:12-28
Wheelbase:74.5 inches (189 cm)
Front tire:6.00-16

Power Take-off (PTO)

Rear PTO:transmission
Rear PTO Type:540