The Case IH 5120 Maxxum tractor engine horsepower is 88 hp | 65.6 kW, and PTO horsepower is 77 hp | 57.4 kW.
Case IH 5120 Maxxum Horsepower Specs
| Engine horsepower | 88 hp | 65.6 kW |
|---|---|
| PTO horsepower claimed | 77 hp | 57.4 kW |
Case IH 5120 Maxxum Useful Horsepower Calculations
| PTO-to-engine power transfer | 87.5% of engine hp reaches the PTO |
|---|---|
| Engine size per PTO horsepower | 3.1 ci per PTO hp |
| PTO horsepower per liter | 19.7 PTO hp per L |
| Engine size per engine horsepower | 2.7 ci per engine hp |
| Engine horsepower per liter | 22.6 engine hp per L |
| Rated speed per PTO horsepower | 28.6 rpm per PTO hp |
Case IH 5120 Maxxum Engine Specs
| Engine type | turbocharged aftercooled diesel |
|---|---|
| Displacement | 239 ci | 3.9 L |
| Bore and stroke | 4.02×4.72 inches | 102 x 120 mm |
| Rated RPM | 2200 |
Case IH 5120 Maxxum Fuel, Cooling, Starting & Service Specs
| Starter volts | 12 |
|---|---|
| Battery volts | 12 |
| Idle RPM | 850-2355 |
Case IH 5120 Maxxum 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 5120 Maxxum Horsepower FAQ
How much horsepower does the Case IH 5120 Maxxum have?
The listed engine output is 88 hp, close to the 80 hp benchmark average. That puts the tractor in a normal working range for this benchmark group, with 88 hp as the main engine number.
How much PTO horsepower does the Case IH 5120 Maxxum have?
The listed PTO output is 77 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 77 hp.
How much engine power reaches the PTO on the Case IH 5120 Maxxum?
The PTO-to-engine transfer works out to 87.5%, from 88 engine hp to 77 PTO hp. That is a normal usable range for judging PTO implement fit.
How big is the Case IH 5120 Maxxum engine?
The engine displacement is 239 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 5120 Maxxum engine stressed for its PTO horsepower?
The engine has about 3.1 cubic inches per PTO hp, using 239 ci and 77 PTO hp. That is close to the normal benchmark for this category.
How much PTO horsepower per liter does the Case IH 5120 Maxxum make?
The output density is about 19.7 PTO hp per liter, using 77 PTO hp and 3.9 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 5120 Maxxum rated at?
The rated speed is 2,200 rpm, close to the 2,200 rpm benchmark average. The 2,200 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.
