The Case IH 4240 tractor engine horsepower is 104 hp | 77.6 kW, and PTO horsepower is 85 hp | 63.4 kW.
Case IH 4240 Horsepower Specs
| Engine gross horsepower | 104 hp | 77.6 kW |
|---|---|
| Engine net horsepower | 99 hp | 73.8 kW |
| PTO horsepower claimed | 85 hp | 63.4 kW |
Case IH 4240 Useful Horsepower Calculations
| PTO-to-engine power transfer | 81.7% of engine hp reaches the PTO |
|---|---|
| Engine size per PTO horsepower | 3.2 ci per PTO hp |
| PTO horsepower per liter | 19.3 PTO hp per L |
| Engine size per engine horsepower | 2.6 ci per engine hp |
| Engine horsepower per liter | 23.6 engine hp per L |
| Fuel tank per PTO horsepower | 0.2 gal per PTO hp |
| Rated speed per PTO horsepower | 28.2 rpm per PTO hp |
Case IH 4240 Engine Specs
| Engine type | turbocharged diesel |
|---|---|
| Displacement | 268 ci | 4.4 L |
| Rated RPM | 2400 |
Case IH 4240 Fuel, Cooling, Starting & Service Specs
| Fuel capacity | 20 gal (ROPS) | 75.7 L |
|---|---|
| Starter volts | 12 |
| Battery volts | 12 |
Case IH 4240 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 4240 Horsepower FAQ
How much horsepower does the Case IH 4240 have?
The listed engine output is 104 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 104 hp.
How much PTO horsepower does the Case IH 4240 have?
The listed PTO output is 85 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 85 hp.
How much engine power reaches the PTO on the Case IH 4240?
The PTO-to-engine transfer works out to 81.7%, from 104 engine hp to 85 PTO hp. That is a normal usable range for judging PTO implement fit.
How big is the Case IH 4240 engine?
The engine displacement is 268 ci, close to the 260 ci benchmark average. It is close to the normal engine-size range for this horsepower class.
Is the Case IH 4240 engine stressed for its PTO horsepower?
The engine has about 3.1 cubic inches per PTO hp, using 268 ci and 85 PTO hp. That is close to the normal benchmark for this category.
How much PTO horsepower per liter does the Case IH 4240 make?
The output density is about 19.3 PTO hp per liter, using 85 PTO hp and 4.4 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 4240 rated at?
The rated speed is 2,400 rpm, close to the 2,200 rpm benchmark average. The 2,400 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.

