The New Holland 2120 tractor engine horsepower is 42.6 hp | 31.8 kW, and PTO horsepower is 34.5 hp | 25.7 kW.
New Holland 2120 Horsepower Specs
| Engine gross horsepower | 42.6 hp | 31.8 kW |
|---|---|
| Engine net horsepower | 40 hp | 29.8 kW |
| PTO horsepower claimed | 34.5 hp | 25.7 kW |
New Holland 2120 Useful Horsepower Calculations
| PTO-to-engine power transfer | 81% of engine hp reaches the PTO |
|---|---|
| Engine size per PTO horsepower | 4 ci per PTO hp |
| PTO horsepower per liter | 15 PTO hp per L |
| Engine size per engine horsepower | 3.2 ci per engine hp |
| Engine horsepower per liter | 18.5 engine hp per L |
| Rated speed per PTO horsepower | 72.5 rpm per PTO hp |
New Holland 2120 Engine Specs
| Displacement | 138.4 ci | 2.3 L |
|---|---|
| Bore and stroke | 3.346×3.937 inches | 85 x 100 mm |
| Compression | 18:1 |
| Rated RPM | 2500 |
New Holland 2120 Fuel, Cooling, Starting & Service Specs
| Starter volts | 12 |
|---|---|
| Battery volts | 12 |
New Holland 2120 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.
New Holland 2120 Horsepower FAQ
How much horsepower does the New Holland 2120 have?
The listed engine output is 42.6 hp, above the 35 hp benchmark average. That is a higher-power result, so ballast, tire setup and implement width matter if you want to use the full 42.6 hp.
How much PTO horsepower does the New Holland 2120 have?
The listed PTO output is 34.5 hp, above the 28 hp benchmark average. That is the number to use for mowers, balers, augers, pumps and other PTO tools that need up to about 34.5 hp.
How much engine power reaches the PTO on the New Holland 2120?
The PTO-to-engine transfer works out to 81%, from 42.6 engine hp to 34.5 PTO hp. That is a normal usable range for judging PTO implement fit.
How big is the New Holland 2120 engine?
The engine displacement is 138.4 ci, above the 110 ci benchmark average. Bigger displacement can help low-rpm pull and load-holding feel.
Is the New Holland 2120 engine stressed for its PTO horsepower?
The engine has about 4 cubic inches per PTO hp, using 138.4 ci and 34.5 PTO hp. That points to a larger-displacement, lower-stress style setup.
How much PTO horsepower per liter does the New Holland 2120 make?
The output density is about 15 PTO hp per liter, using 34.5 PTO hp and 2.3 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 New Holland 2120 rated at?
The rated speed is 2,500 rpm, close to the 2,400 rpm benchmark average. The 2,500 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 newholland.com website before buying parts, sizing implements or making repair decisions.
