The Case IH D25 tractor engine horsepower is 25 hp | 18.6 kW, and PTO horsepower is 21.7 hp | 16.2 kW.
Case IH D25 Horsepower Specs
| Engine gross horsepower | 25 hp | 18.6 kW |
|---|---|
| PTO horsepower claimed | 21.7 hp | 16.2 kW |
Case IH D25 Useful Horsepower Calculations
| PTO-to-engine power transfer | 86.8% of engine hp reaches the PTO |
|---|---|
| Engine size per PTO horsepower | 3.7 ci per PTO hp |
| PTO horsepower per liter | 16.7 PTO hp per L |
| Engine size per engine horsepower | 3.2 ci per engine hp |
| Engine horsepower per liter | 19.2 engine hp per L |
| Rated speed per PTO horsepower | 119.8 rpm per PTO hp |
Case IH D25 Engine Specs
| Displacement | 81.2 ci | 1.3 L |
|---|---|
| Bore and stroke | 3.307×3.15 inches | 84 x 80 mm |
| Rated RPM | 2600 |
Case IH D25 Fuel, Cooling, Starting & Service Specs
| Starter volts | 12 |
|---|---|
| Battery volts | 12 |
Case IH D25 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.
Case IH D25 Horsepower FAQ
How much horsepower does the Case IH D25 have?
The listed engine output is 25 hp, below the 35 hp benchmark average. That is a lower-power result, so the smarter match is lighter implements and jobs that do not demand more than about 25 hp.
How much PTO horsepower does the Case IH D25 have?
The listed PTO output is 21.7 hp, below the 28 hp benchmark average. For real use, size PTO implements below or near 21.7 hp rather than using a bigger engine-horsepower number.
How much engine power reaches the PTO on the Case IH D25?
The PTO-to-engine transfer works out to 86.8%, from 25 engine hp to 21.7 PTO hp. That is a normal usable range for judging PTO implement fit.
How big is the Case IH D25 engine?
The engine displacement is 81.2 ci, below the 110 ci benchmark average. Smaller displacement usually means less engine size behind each horsepower number.
Is the Case IH D25 engine stressed for its PTO horsepower?
The engine has about 3.7 cubic inches per PTO hp, using 81.2 ci and 21.7 PTO hp. That points to a larger-displacement, lower-stress style setup.
How much PTO horsepower per liter does the Case IH D25 make?
The output density is about 16.7 PTO hp per liter, using 21.7 PTO hp and 1.3 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 Case IH D25 rated at?
The rated speed is 2,600 rpm, close to the 2,400 rpm benchmark average. The 2,600 rpm figure is around normal for this class.
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 caseih.com website before buying parts, sizing implements or making repair decisions.
