The Case IH Farmall 75A tractor engine horsepower is 75 hp | 55.9 kW, and PTO horsepower is 66 hp | 49.2 kW.
Case IH Farmall 75A Horsepower Specs
| Engine gross horsepower | 75 hp | 55.9 kW |
|---|---|
| PTO horsepower claimed | 66 hp | 49.2 kW |
| PTO horsepower tested | 68.18 hp | 50.8 kW |
Case IH Farmall 75A Useful Horsepower Calculations
| PTO-to-engine power transfer | 88% of engine hp reaches the PTO |
|---|---|
| Engine size per PTO horsepower | 3 ci per PTO hp |
| PTO horsepower per liter | 20.6 PTO hp per L |
| Engine size per engine horsepower | 2.6 ci per engine hp |
| Engine horsepower per liter | 23.4 engine hp per L |
| Fuel tank per PTO horsepower | 0.2 gal per PTO hp |
| Rated speed per PTO horsepower | 37.9 rpm per PTO hp |
Case IH Farmall 75A Engine Specs
| Displacement | 195 ci | 3.2 L |
|---|---|
| Rated RPM | 2500 |
Case IH Farmall 75A Fuel, Cooling, Starting & Service Specs
| Fuel capacity | 16.4 gal | 62.1 L |
|---|---|
| Starter volts | 12 |
| Battery volts | 12 |
Case IH Farmall 75A 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 utility tractor category. Use the operator manual and actual engine/tractor configuration before sizing implements or judging working power.
Case IH Farmall 75A Horsepower FAQ
How much horsepower does the Case IH Farmall 75A have?
The listed engine output is 75 hp, close to the 80 hp benchmark average. That puts the tractor in a normal working range for this benchmark group, with 75 hp as the main engine number.
How much PTO horsepower does the Case IH Farmall 75A have?
The listed PTO output is 66 hp, close to the 65 hp benchmark average. Use 66 PTO hp as the practical implement-sizing number.
How much engine power reaches the PTO on the Case IH Farmall 75A?
The PTO-to-engine transfer works out to 88%, from 75 engine hp to 66 PTO hp. That is a normal usable range for judging PTO implement fit.
How big is the Case IH Farmall 75A engine?
The engine displacement is 195 ci, below the 260 ci benchmark average. Smaller displacement usually means less engine size behind each horsepower number.
Is the Case IH Farmall 75A engine stressed for its PTO horsepower?
The engine has about 3 cubic inches per PTO hp, using 195 ci and 66 PTO hp. That is a smaller-displacement, higher-output style result.
How much PTO horsepower per liter does the Case IH Farmall 75A make?
The output density is about 20.6 PTO hp per liter, using 66 PTO hp and 3.2 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 Farmall 75A rated at?
The rated speed is 2,500 rpm, above the 2,200 rpm benchmark average. A higher 2,500 rpm rating can make power well but may feel busier under load.
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.
