The Case IH Farmall 115U tractor engine horsepower is 115 hp | 85.8 kW, PTO horsepower is 98 hp | 73.1 kW, and the drawbar horsepower is 73.0 hp | 54.4 kW.
Case IH Farmall 115U Horsepower Specs
| Engine gross horsepower | 115 hp | 85.8 kW |
|---|---|
| PTO horsepower claimed | 98 hp | 73.1 kW |
| PTO horsepower tested | 104.7 hp | 78.1 kW |
| Drawbar horsepower tested | 73.0 hp | 54.4 kW |
Case IH Farmall 115U Useful Horsepower Calculations
| PTO-to-engine power transfer | 85.2% of engine hp reaches the PTO |
|---|---|
| Drawbar-to-engine power transfer | 63.5% of engine hp reaches the drawbar |
| Drawbar-to-PTO power ratio | 74.5% drawbar hp vs PTO hp |
| Engine size per PTO horsepower | 2.1 ci per PTO hp |
| PTO horsepower per liter | 28.8 PTO hp per L |
| Engine size per engine horsepower | 1.8 ci per engine hp |
| Engine horsepower per liter | 33.8 engine hp per L |
| Rated speed per PTO horsepower | 23.5 rpm per PTO hp |
Case IH Farmall 115U Engine Specs
| Engine type | turbocharged intercooled diesel |
|---|---|
| Displacement | 207.5 ci | 3.4 L |
| Bore and stroke | 3.898×4.331 inches | 99 x 110 mm |
| Rated RPM | 2300 |
Case IH Farmall 115U Fuel, Cooling, Starting & Service Specs
| Starter volts | 12 |
|---|---|
| Battery volts | 12 |
Case IH Farmall 115U Horsepower Comparison Charts
Engine horsepower comparison
PTO horsepower comparison
Drawbar 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 115U Horsepower FAQ
How much horsepower does the Case IH Farmall 115U have?
The listed engine output is 115 hp, above the 80 hp benchmark average. That is a higher-power result, so ballast, tire setup and implement width matter if you want to use the full 115 hp.
How much PTO horsepower does the Case IH Farmall 115U have?
The listed PTO output is 98 hp, above the 65 hp benchmark average. That is the number to use for mowers, balers, augers, pumps and other PTO tools that need up to about 98 hp.
How much drawbar horsepower does the Case IH Farmall 115U have?
The listed drawbar output is 73 hp, above the 55 hp benchmark average. That makes the 73 hp drawbar number more useful than engine hp for tillage and heavy pulling.
How much engine power reaches the PTO on the Case IH Farmall 115U?
The PTO-to-engine transfer works out to 85.2%, from 115 engine hp to 98 PTO hp. That is a normal usable range for judging PTO implement fit.
How efficient is the Case IH Farmall 115U for pulling work?
The drawbar-to-engine transfer is about 63.5%, from 115 engine hp to 73 drawbar hp. That means traction losses and drivetrain losses are a big part of the real pulling result.
Is the Case IH Farmall 115U better judged by PTO hp or drawbar hp?
The drawbar output is about 74.5% of PTO output, comparing 73 drawbar hp with 98 PTO hp. That helps separate pulling ability from PTO implement ability.
How big is the Case IH Farmall 115U engine?
The engine displacement is 207.5 ci, below the 260 ci benchmark average. Smaller displacement usually means less engine size behind each horsepower number.
Is the Case IH Farmall 115U engine stressed for its PTO horsepower?
The engine has about 2.1 cubic inches per PTO hp, using 207.5 ci and 98 PTO hp. That is a smaller-displacement, higher-output style result.
How much PTO horsepower per liter does the Case IH Farmall 115U make?
The output density is about 28.8 PTO hp per liter, using 98 PTO hp and 3.4 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 caseih.com website before buying parts, sizing implements or making repair decisions.
