Overview
The Ford 840 is a utility tractor produced between 1954 and 1957 in Highland Park, Michigan, featuring a 172-cubic-inch four-cylinder engine. It was manufactured with both gasoline and LP gas engine configurations, delivering a claimed 40 belt horsepower. The mechanical design includes a standard 4-speed unsynchronized transmission with an optional 12-speed Sherman auxiliary upgrade and a 1250-pound capacity Type I rear hitch.
Ideal Applications
Transmission and Drive Layout:
The tractor is equipped with a two-wheel drive chassis and an unsynchronized gear transmission available in 4-speed or 12-speed configurations, the latter utilizing a factory-optional Sherman auxiliary unit.
Engine and Power Ratings:
The Ford 2.8L four-cylinder engine is rated at 2200 RPM and produces a claimed 40 belt horsepower, supporting a listed plow capacity of three 14-inch plows.
Hitch and Hydraulic Performance:
The model features a Type I rear hitch with position and draft control, a rear lift capacity of 1250 pounds, and an open-center hydraulic system with a pump flow of 4.8 gpm.
Production
| Description | Utility tractor / Built in Highland Park, Michigan, USA |
|---|---|
| Manufacturer | Ford |
Engine
| Air cleaner | oil bath / oil bath |
|---|---|
| Bore/Stroke | 3.90x3.60 inches (99 x 91 mm) / 3.90x3.60 inches (99 x 91 mm) |
| Compression | 6.75:1 / 8.0:1 |
| Coolant capacity | 15 qts (14.2 L) |
| Description | Ford EAF / gasoline / 4-cylinder 8-valve / liquid-cooled inline / Ford EAF / LP gas / 4-cylinder 8-valve / liquid-cooled inline |
| Displacement | 172 ci (2.8 L) / 172 ci (2.8 L) |
| Firing order | 1-2-4-3 / 1-2-4-3 |
| Rated RPM | 2200 / 2200 |
| Starter volts | 6 / 6 |
| Oil capacity | 5 qts (4.7 L) / 5 qts (4.7 L) |
| Engine type | Ford 2.8L 4-cyl gasoline / Ford 2.8L 4-cyl LP gas |
| Engine type | Ford 2.8L 4-cyl gasoline / Ford 2.8L 4-cyl LP gas |
| Belt (claimed) | 40 hp (29.8 kW) |
| Plows | 3 *14-inch |
Transmission
| Clutch | dry disc / dry disc |
|---|---|
| Description | The Sherman under-over auxiliary transmission was available as a factory option on the 840. Tractors equipped with the transmission were marked 840S. |
| Gears | 4 forward and 1 reverse / 12 forward and 3 reverse |
| Oil capacity | 8 qts (7.6 L) |
| Oil type | SAE 80 Mild EP |
| Transmission | Sherman |
| Type | unsynchronized gear / unsynchronized gear |
| Transmission type | 4-speed unsynchronized gear / 12-speed unsynchronized gear |
| Transmission type | 4-speed unsynchronized gear / 12-speed unsynchronized gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Differential mechanical expanding shoe brakes |
| Drive type | Two-wheel drive |
| Steering | manual |
Capacity
| Fuel | 14 gal (53.0 L) |
|---|---|
| Hydraulic system | 2 gal (7.6 L) |
| Rear axle | 11 qts (10.4 L) |
Hydraulics
| Capacity | 2 gal (7.6 L) |
|---|---|
| Pressure | 2000 psi (137.9 bar) |
| Pump flow | 4.8 gpm (18.2 lpm) |
| Type | open center |
Hitch
| Control | position and draft control |
|---|---|
| Rear lift | 1250 lbs (567 kg) |
| Rear Type | I |
PTO
| Rear PTO | transmission |
|---|---|
| Rear PTO Type | 540 (1.125) |
Electrical
| Battery volts | 6 |
|---|---|
| Charging amps | 20 |
| Charging system | generator |
| Ground | positive |
Dimensions & Tires
| Front tread | 52 to 76 inches (132 to 193 cm) |
|---|---|
| Ground clearance | 21 inches (53 cm) |
| Height | 59.3 inches (150 cm) |
| Length | 121.8 inches (309 cm) |
| Rear tread | 52 to 76 inches (132 to 193 cm) |
| Wheelbase | 75.18 inches (190 cm) |
| Width | 64.75 inches (164 cm) |
| Front tire | 6.00-16 |
| Rear tire | 12-28 |
| Weight | 2850 to 3400 pounds |
| Wheelbase | 75.18 inches (190 cm) |
| Ag front | 6.00-16 |
| Ag rear | 12-28 |
840 Serial Number Location
| Description | On the left-hand side of the transmission housing behind the starter. |
|---|
840 Serial Numbers
| 1954 | 1 |
|---|---|
| 1955 | 10615 |
| 1956 | 77271 |
| 1957 | 116368 |
| Description | FAQ: How to read a serial number table. |
Ford 840 Weight
| Ballasted | 6700 lbs (3039 kg) |
|---|---|
| Operating | 3400 lbs (1542 kg) |
| Shipping | 2850 lbs (1292 kg) |
Ford 840 attachments
| Description | front-end loader |
|---|
References
| Description | 1200 Farm Loaders published in 1966, by Ford / 840 Powermaster published in 1957, by Ford |
|---|
Variants
| 820 | no 3-point or hydraulics |
|---|---|
| 840 | four-speed |
| 850 | transmission PTO |
| 860 | live PTO |