The Massey Ferguson 231 tractor engine horsepower is 38 hp | 28.3 kW, and PTO horsepower is 34 hp | 25.4 kW.
Massey Ferguson 231 Horsepower Specs
| Engine horsepower | 38 hp | 28.3 kW |
|---|---|
| PTO horsepower claimed | 34 hp | 25.4 kW |
Massey Ferguson 231 Useful Horsepower Calculations
| PTO-to-engine power transfer | 89.5% of engine hp reaches the PTO |
|---|---|
| Engine size per PTO horsepower | 4.5 ci per PTO hp |
| PTO horsepower per liter | 13.6 PTO hp per L |
| Engine size per engine horsepower | 4 ci per engine hp |
| Engine horsepower per liter | 15.2 engine hp per L |
| Fuel tank per PTO horsepower | 0.5 gal per PTO hp |
| Rated speed per PTO horsepower | 58.8 rpm per PTO hp |
Massey Ferguson 231 Engine Specs
| Displacement | 152 ci | 2.5 L |
|---|---|
| Bore and stroke | 3.60×5.00 inches | 91 x 127 mm |
| Rated RPM | 2000 |
Massey Ferguson 231 Fuel, Cooling, Starting & Service Specs
| Fuel capacity | 15.3 gal | 57.9 L |
|---|---|
| Starter volts | 12 |
| Battery volts | 12 |
Massey Ferguson 231 Horsepower Comparison Charts
Engine horsepower comparison
PTO horsepower comparison
Displacement comparison
Rated RPM comparison
Engine size per PTO HP
Benchmarks use practical low, average and high ranges for the compact and small utility tractor category. Use the operator manual and actual engine/tractor configuration before sizing implements or judging working power.
Massey Ferguson 231 Horsepower FAQ
How much horsepower does the Massey Ferguson 231 have?
The listed engine output is 38 hp, close to the 35 hp benchmark average. That puts the tractor in a normal working range for this benchmark group, with 38 hp as the main engine number.
How much PTO horsepower does the Massey Ferguson 231 have?
The listed PTO output is 34 hp, above the 28 hp benchmark average. That is the number to use for mowers, balers, augers, pumps and other PTO tools that need up to about 34 hp.
How much engine power reaches the PTO on the Massey Ferguson 231?
The PTO-to-engine transfer works out to 89.5%, from 38 engine hp to 34 PTO hp. That is a normal usable range for judging PTO implement fit.
How big is the Massey Ferguson 231 engine?
The engine displacement is 152 ci, above the 110 ci benchmark average. Bigger displacement can help low-rpm pull and load-holding feel.
Is the Massey Ferguson 231 engine stressed for its PTO horsepower?
The engine has about 4.5 cubic inches per PTO hp, using 152 ci and 34 PTO hp. That points to a larger-displacement, lower-stress style setup.
How much PTO horsepower per liter does the Massey Ferguson 231 make?
The output density is about 13.6 PTO hp per liter, using 34 PTO hp and 2.5 L of displacement. Higher hp/L means more output squeezed from each liter; lower hp/L usually means a more relaxed engine tune.
What rpm is the Massey Ferguson 231 rated at?
The rated speed is 2,000 rpm, below the 2,400 rpm benchmark average. A lower 2,000 rpm rating can feel more relaxed, but torque and gearing decide the real work feel.
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.
