The Massey Ferguson 4840 tractor engine horsepower is 265 hp | 197.6 kW, PTO horsepower is 211 hp | 157.3 kW, and the drawbar horsepower is 170 hp | 126.8 kW.
Massey Ferguson 4840 Horsepower Specs
| Engine net horsepower | 265 hp | 197.6 kW |
|---|---|
| PTO horsepower claimed | 211 hp | 157.3 kW |
| PTO horsepower tested | 210.67 hp | 157.1 kW |
| Drawbar horsepower claimed | 170 hp | 126.8 kW |
| Drawbar horsepower tested | 179.65 hp | 134.0 kW |
Massey Ferguson 4840 Useful Horsepower Calculations
| PTO-to-engine power transfer | 79.6% of engine hp reaches the PTO |
|---|---|
| Drawbar-to-engine power transfer | 64.2% of engine hp reaches the drawbar |
| Drawbar-to-PTO power ratio | 80.6% drawbar hp vs PTO hp |
| Engine size per PTO horsepower | 4.3 ci per PTO hp |
| PTO horsepower per liter | 14.3 PTO hp per L |
| Engine size per engine horsepower | 3.4 ci per engine hp |
| Engine horsepower per liter | 17.9 engine hp per L |
| Fuel tank per PTO horsepower | 0.9 gal per PTO hp |
Massey Ferguson 4840 Engine Specs
| Displacement | 903 ci | 14.8 L |
|---|---|
| Bore and stroke | 5.50×4.75 inches | 140 x 121 mm |
| Compression | 15.5:1 |
Massey Ferguson 4840 Fuel, Cooling, Starting & Service Specs
| Fuel capacity | 190 gal | 719.1 L |
|---|---|
| Starter volts | 12 |
| Battery volts | 12 |
Massey Ferguson 4840 Horsepower Comparison Charts
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Displacement comparison
Engine size per PTO HP
Benchmarks use practical low, average and high ranges for the large ag tractor category. Use the operator manual and actual engine/tractor configuration before sizing implements or judging working power.
Massey Ferguson 4840 Horsepower FAQ
How much horsepower does the Massey Ferguson 4840 have?
The listed engine output is 265 hp, above the 210 hp benchmark average. That is a higher-power result, so ballast, tire setup and implement width matter if you want to use the full 265 hp.
How much PTO horsepower does the Massey Ferguson 4840 have?
The listed PTO output is 211 hp, above the 175 hp benchmark average. That is the number to use for mowers, balers, augers, pumps and other PTO tools that need up to about 211 hp.
How much drawbar horsepower does the Massey Ferguson 4840 have?
The listed drawbar output is 170 hp, above the 150 hp benchmark average. That makes the 170 hp drawbar number more useful than engine hp for tillage and heavy pulling.
How much engine power reaches the PTO on the Massey Ferguson 4840?
The PTO-to-engine transfer works out to 79.6%, from 265 engine hp to 211 PTO hp. That is a normal usable range for judging PTO implement fit.
How efficient is the Massey Ferguson 4840 for pulling work?
The drawbar-to-engine transfer is about 64.2%, from 265 engine hp to 170 drawbar hp. That means traction losses and drivetrain losses are a big part of the real pulling result.
Is the Massey Ferguson 4840 better judged by PTO hp or drawbar hp?
The drawbar output is about 80.6% of PTO output, comparing 170 drawbar hp with 211 PTO hp. That helps separate pulling ability from PTO implement ability.
How big is the Massey Ferguson 4840 engine?
The engine displacement is 903 ci, above the 520 ci benchmark average. Bigger displacement can help low-rpm pull and load-holding feel.
Is the Massey Ferguson 4840 engine stressed for its PTO horsepower?
The engine has about 4.3 cubic inches per PTO hp, using 903 ci and 211 PTO hp. That points to a larger-displacement, lower-stress style setup.
How much PTO horsepower per liter does the Massey Ferguson 4840 make?
The output density is about 14.3 PTO hp per liter, using 211 PTO hp and 14.8 L of displacement. Higher hp/L means more output squeezed from each liter; lower hp/L usually means a more relaxed engine tune.
Horsepower and engine specs can vary by year, market, engine option, fuel system, test standard and tractor configuration. Check the operator manual, spec plate, parts book and official masseyferguson.com website before buying parts, sizing implements or making repair decisions.
