The Massey Ferguson 390 tractor engine horsepower is 76 hp | 56.7 kW, PTO horsepower is 69 hp | 51.5 kW, and the drawbar horsepower is 55.5 hp | 41.4 kW.
Massey Ferguson 390 Horsepower Specs
| Engine horsepower | 76 hp | 56.7 kW |
|---|---|
| PTO horsepower claimed | 69 hp | 51.5 kW |
| PTO horsepower tested | 67.3 hp | 50.2 kW |
| Drawbar horsepower tested | 55.5 hp | 41.4 kW |
Massey Ferguson 390 Useful Horsepower Calculations
| PTO-to-engine power transfer | 90.8% of engine hp reaches the PTO |
|---|---|
| Drawbar-to-engine power transfer | 73% of engine hp reaches the drawbar |
| Drawbar-to-PTO power ratio | 80.4% drawbar hp vs PTO hp |
| Engine size per PTO horsepower | 3.6 ci per PTO hp |
| PTO horsepower per liter | 16.8 PTO hp per L |
| Engine size per engine horsepower | 3.3 ci per engine hp |
| Engine horsepower per liter | 18.5 engine hp per L |
| Torque per PTO horsepower | 3 lb-ft per PTO hp |
| Rated speed per PTO horsepower | 31.9 rpm per PTO hp |
Massey Ferguson 390 Engine Specs
| Engine model | year |
|---|---|
| Displacement | 248 ci | 4.1 L |
| Bore and stroke | 3.975×5.00 inches | 101 x 127 mm |
| Compression | 16:1 |
| Rated RPM | 2200 |
| Torque | 206 lb-ft | 279.3 Nm |
| Torque RPM | 1400 |
Massey Ferguson 390 Fuel, Cooling, Starting & Service Specs
| Starter volts | 12 |
|---|---|
| Battery volts | 12 |
| Firing order | 1-3-4-2 |
| Idle RPM | 750-2380 |
Massey Ferguson 390 Horsepower Comparison Charts
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Displacement comparison
Torque comparison
Rated RPM comparison
Engine size per PTO HP
Benchmarks use practical low, average and high ranges for the utility tractor category. Use the operator manual and actual engine/tractor configuration before sizing implements or judging working power.
Massey Ferguson 390 Horsepower FAQ
How much horsepower does the Massey Ferguson 390 have?
The listed engine output is 76 hp, close to the 80 hp benchmark average. That puts the tractor in a normal working range for this benchmark group, with 76 hp as the main engine number.
How much PTO horsepower does the Massey Ferguson 390 have?
The listed PTO output is 69 hp, close to the 65 hp benchmark average. Use 69 PTO hp as the practical implement-sizing number.
How much drawbar horsepower does the Massey Ferguson 390 have?
The listed drawbar output is 55.5 hp, close to the 55 hp benchmark average. It gives a realistic pulling-power figure of about 55.5 hp.
How much engine power reaches the PTO on the Massey Ferguson 390?
The PTO-to-engine transfer works out to 90.8%, from 76 engine hp to 69 PTO hp. That is a strong transfer figure when the two specs are from the same configuration.
How efficient is the Massey Ferguson 390 for pulling work?
The drawbar-to-engine transfer is about 73%, from 76 engine hp to 55.5 drawbar hp. That gives a more grounded pulling estimate than engine horsepower alone.
Is the Massey Ferguson 390 better judged by PTO hp or drawbar hp?
The drawbar output is about 80.4% of PTO output, comparing 55.5 drawbar hp with 69 PTO hp. That helps separate pulling ability from PTO implement ability.
How big is the Massey Ferguson 390 engine?
The engine displacement is 248 ci, close to the 260 ci benchmark average. It is close to the normal engine-size range for this horsepower class.
Is the Massey Ferguson 390 engine stressed for its PTO horsepower?
The engine has about 3.6 cubic inches per PTO hp, using 248 ci and 69 PTO hp. That is close to the normal benchmark for this category.
How much PTO horsepower per liter does the Massey Ferguson 390 make?
The output density is about 16.8 PTO hp per liter, using 69 PTO hp and 4.1 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.
