The New Holland T9.505 tractor engine horsepower is 457 hp | 340.8 kW, PTO horsepower is 451.28 hp | 336.5 kW, and the drawbar horsepower is 365.60 hp | 272.6 kW.
Engine HP457 hp | 340.8 kW
PTO HP451.28 hp | 336.5 kW
Drawbar HP365.60 hp | 272.6 kW
PTO Transfer98.7%
Displacement787 ci | 12.9 L
New Holland T9.505 Horsepower Specs
Engine horsepower
457 hp | 340.8 kW
PTO horsepower tested
451.28 hp | 336.5 kW
Drawbar horsepower tested
365.60 hp | 272.6 kW
New Holland T9.505 Useful Horsepower Calculations
PTO-to-engine power transfer
98.7% of engine hp reaches the PTO
Drawbar-to-engine power transfer
80% of engine hp reaches the drawbar
Drawbar-to-PTO power ratio
81% drawbar hp vs PTO hp
Engine size per PTO horsepower
1.7 ci per PTO hp
PTO horsepower per liter
35 PTO hp per L
Engine size per engine horsepower
1.7 ci per engine hp
Engine horsepower per liter
35.4 engine hp per L
Rated speed per PTO horsepower
4.7 rpm per PTO hp
New Holland T9.505 Engine Specs
Engine type
wastegate turbocharged aftercooled diesel
Displacement
787 ci | 12.9 L
Bore and stroke
5.315×5.906 inches | 135 x 150 mm
Emissions
Interim Tier 4
Rated RPM
2100
New Holland T9.505 Fuel, Cooling, Starting & Service Specs
Starter volts
24
Battery volts
12
New Holland T9.505 Horsepower Comparison Charts
Engine horsepower comparison
This model
457 hp
Average
210 hp
Low
120 hp
High
380 hp
PTO horsepower comparison
This model
451.3 hp
Average
175 hp
Low
100 hp
High
320 hp
Drawbar horsepower comparison
This model
365.6 hp
Average
150 hp
Low
85 hp
High
280 hp
Displacement comparison
This model
787 ci
Average
520 ci
Low
360 ci
High
750 ci
Rated RPM comparison
This model
2,100 rpm
Average
2,100 rpm
Low
1,600 rpm
High
2,500 rpm
Engine size per PTO HP
This model
1.7 ci/hp
Average
3.3 ci/hp
Low
2 ci/hp
High
5.2 ci/hp
Benchmarks use practical low, average and high ranges for the large ag tractor category. Use the operator manual and actual engine/tractor configuration before sizing implements or judging working power.
New Holland T9.505 Horsepower FAQ
How much horsepower does the New Holland T9.505 have?
The listed engine output is 457 hp, above the 210 hp benchmark average. That is a higher-power result, so ballast, tire setup and implement width matter if you want to use the full 457 hp.
How much PTO horsepower does the New Holland T9.505 have?
The listed PTO output is 451.3 hp, above the 175 hp benchmark average. That is the number to use for mowers, balers, augers, pumps and other PTO tools that need up to about 451.3 hp.
How much drawbar horsepower does the New Holland T9.505 have?
The listed drawbar output is 365.6 hp, above the 150 hp benchmark average. That makes the 365.6 hp drawbar number more useful than engine hp for tillage and heavy pulling.
How much engine power reaches the PTO on the New Holland T9.505?
The PTO-to-engine transfer works out to 98.7%, from 457 engine hp to 451.3 PTO hp. That is a strong transfer figure when the two specs are from the same configuration.
How efficient is the New Holland T9.505 for pulling work?
The drawbar-to-engine transfer is about 80%, from 457 engine hp to 365.6 drawbar hp. That gives a more grounded pulling estimate than engine horsepower alone.
Is the New Holland T9.505 better judged by PTO hp or drawbar hp?
The drawbar output is about 81% of PTO output, comparing 365.6 drawbar hp with 451.3 PTO hp. That helps separate pulling ability from PTO implement ability.
How big is the New Holland T9.505 engine?
The engine displacement is 787 ci, above the 520 ci benchmark average. Bigger displacement can help low-rpm pull and load-holding feel.
Is the New Holland T9.505 engine stressed for its PTO horsepower?
The engine has about 1.7 cubic inches per PTO hp, using 787 ci and 451.3 PTO hp. That is a smaller-displacement, higher-output style result.
How much PTO horsepower per liter does the New Holland T9.505 make?
The output density is about 35 PTO hp per liter, using 451.3 PTO hp and 12.9 L of displacement. Higher hp/L means more output squeezed from each liter; lower hp/L usually means a more relaxed engine tune.
Official information note
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.
