Massey Ferguson 4840 Specs ( 1978-1983 )
Overview
The Massey Ferguson 4840 is a four-wheel drive farm tractor manufactured between 1978 and 1983, powered by a 14.8L Cummins V-903 8-cylinder diesel engine. The machine features articulated power steering, a Category IV rear hitch with an 11,000-pound lift capacity, and was available with either an 18-speed partial power shift or a 12-speed gear transmission. During its production run, it reached a shipping weight of 27,000 pounds and carried an original price of $98,000 in 1983.
Ideal Applications
Tested Drawbar and PTO Performance:
According to Nebraska Tractor Test 1343, the 4840 achieved a maximum drawbar pull of 28,191 pounds and a tested PTO power output of 210.67 horsepower at rated engine speed.
High-Capacity Fluid and Fuel Storage:
The tractor is equipped with a 190-gallon fuel tank and a steering system reservoir with a 96-quart capacity to support its articulated power steering and hydraulic requirements.
Mechanical Drive and Weight Specifications:
This 4WD model utilizes planetary final drives and 4-inch diameter axles to manage an operating weight of 30,920 pounds when equipped with 23.1-34 dual tires.
Production
| Description | Original price was $98,000 in 1983 |
|---|---|
| Drive type | Four-wheel Drive (4WD) tractor |
| Manufacturer | Massey Ferguson |
Engine
| Engine type | Cummins 14.8L 8-cyl diesel |
|---|---|
| Air cleaner | dual dry elements |
| Bore/Stroke | 5.50x4.75 inches (140 x 121 mm) |
| Compression | 15.5:1 |
| Coolant capacity | 60 qts (56.8 L) |
| Description | Cummins V-903 / diesel / 8-cylinder / liquid-cooled |
| Displacement | 903 ci (14.8 L) |
| Oil capacity | 37.5 qts (35.5 L) |
| Power (net) | 265 hp (197.6 kW) |
| Starter volts | 12 |
| Drawbar (claimed) | 170 hp (126.8 kW) |
| Drawbar (tested) | 179.65 hp (134.0 kW) |
| Engine (net) | 265 hp (197.6 kW) |
| PTO (claimed) | 211 hp (157.3 kW) |
| PTO (tested) | 210.67 hp (157.1 kW) |
Transmission
| Clutch | wet disc with four 14-inch plates |
|---|---|
| Description | Three gears (1-3) in two ranges (high/low) with three-speed power shift (low/intermediate/high). / Four gears in three ranges, plus reverse range. |
| Gears | 18 forward and 6 reverse / 12 forward and 4 reverse |
| Oil capacity | 44 qts (41.6 L) |
| Type | partial power shift / gear |
| Transmission type | 18-speed partial power shift / 12-speed gear |
| Transmission type | 18-speed partial power shift / 12-speed gear |
Mechanical
| Cab | Cab standard with heat and air-conditioning. Optional AM/FM 8-track stereo. |
|---|---|
| Description | Articulated power steering / Hydraulic caliper brakes |
| Drive type | Four-wheel drive |
| Final drives | planetary |
Capacity
| Front axle | 42 qts (39.7 L) |
|---|---|
| Fuel | 190 gal (719.1 L) |
| Rear axle | 84 qts (79.5 L) |
| Steering | 96 qts (90.9 L) |
Hydraulics
| Pump flow | 16 gpm (transmission) (60.6 lpm) |
|---|---|
| Steering cap. | 96 qts (90.9 L) |
| Total flow | 60 gpm (227.1 lpm) |
| Type | open center |
| Valves | 3 to 4 |
Hitch
| Control | position control with electronic lower link sensing |
|---|---|
| Rear lift (at 24"/610mm) | 11000 lbs (4989 kg) |
| Rear Type | IV |
PTO
| Engine RPM | 1000@2350 |
|---|---|
| Rear PTO | independent |
| Rear PTO Type | 1000 (1.75) |
Electrical
| Batteries | 4 |
|---|---|
| Battery volts | 12 |
| Charging amps | 60 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Front axle | 4 inch diameter (101 mm) |
|---|---|
| Height | 130 inches (330 cm) |
| Length | 252 inches (640 cm) |
| Rear axle | 4 inch diameter (101 mm) |
| Wheelbase | 137 inches (347 cm) |
| Width | 108 inches (274 cm) |
| Front tire | 23.1-34 |
| Rear tire | 23.1-34 |
| Weight | 27000 to 30920 pounds |
| Wheelbase | 137 inches (347 cm) |
| Ag front | 23.1-34 / 18.4-38 |
| Ag rear | 23.1-34 / 18.4-38 |
4840 Serial Numbers
| 1978 | 9D001001 |
|---|---|
| 1979 | 9D001031 |
| 1980 | 9D002102 |
| 1981 | 9D002752 |
| 1982 | 9D003515 |
| 1983 | 9D003897 |
| Description | FAQ: How to read a serial number table. |
| Location: | Rear, right-side of cab |
Massey Ferguson 4840 Weight
| Max capacity | 34000 lbs (15422 kg) |
|---|---|
| Operating | 30920 lbs (23.1-34 duals) (14025 kg) |
| Shipping | 27000 lbs (12247 kg) |
Nebraska Tractor Test 1343
| Description | Diesel 18-speed 4WDApril 16 - May 6, 1980Link: Nebraska Tractor Test 1343 file / PTO performance / Drawbar performance / Gear 2L-L used for power test. / Gear 1L-L used for pull test. |
|---|---|
| Fuel use | 14.5 gal/hour (54.9 l/hour) / 13.5 gal/hour (51.1 l/hour) / 14.5 gal/hour (54.9 l/hour) |
| Max power | 179.65 hp (134.0 kW) |
| Max pull | 28,191 lbs (12787 kg) |
| Power at rated engine speed | 210.67 hp (157.1 kW) |
| Power at rated PTO speed | 210.61 hp (157.1 kW) |
References
| Drive type | MF 4000 Series 4-Wheel Drives published in 1979, by Massey Ferguson / MF 4000 Series 4-Wheel Drives published in 1984, by Massey Ferguson / Product Information Manual MF4840-MF4880 4 Wheel Drive Tractors published in 1978, by Massey Ferguson |
|---|
Speeds
| Description | With 23.1x34 duals. / With 23.1-34 tires. |
|---|