The New Holland TL90A tractor engine horsepower is 90 hp | 67.1 kW, PTO horsepower is 77 hp | 57.4 kW, and the drawbar horsepower is 50.8 hp | 37.9 kW.
Engine HP90 hp | 67.1 kW
PTO HP77 hp | 57.4 kW
Drawbar HP50.8 hp | 37.9 kW
PTO Transfer85.6%
Displacement273 ci | 4.5 L
New Holland TL90A Horsepower Specs
Engine gross horsepower
90 hp | 67.1 kW
PTO horsepower claimed
77 hp | 57.4 kW
PTO horsepower tested
82.9 hp | 61.8 kW
Drawbar horsepower tested
50.8 hp | 37.9 kW
New Holland TL90A Useful Horsepower Calculations
PTO-to-engine power transfer
85.6% of engine hp reaches the PTO
Drawbar-to-engine power transfer
56.4% of engine hp reaches the drawbar
Drawbar-to-PTO power ratio
66% drawbar hp vs PTO hp
Engine size per PTO horsepower
3.5 ci per PTO hp
PTO horsepower per liter
17.1 PTO hp per L
Engine size per engine horsepower
3 ci per engine hp
Engine horsepower per liter
20 engine hp per L
Rated speed per PTO horsepower
32.5 rpm per PTO hp
New Holland TL90A Engine Specs
Engine type
turbocharged diesel
Displacement
273 ci | 4.5 L
Bore and stroke
4.094×5.197 inches | 104 x 132 mm
Compression
17.5:1
Rated RPM
2500
Torque RPM
1400
New Holland TL90A Fuel, Cooling, Starting & Service Specs
Starter volts
12
Battery volts
12
New Holland TL90A Horsepower Comparison Charts
Engine horsepower comparison
This model
90 hp
Average
80 hp
Low
45 hp
High
120 hp
PTO horsepower comparison
This model
77 hp
Average
65 hp
Low
35 hp
High
105 hp
Drawbar horsepower comparison
This model
50.8 hp
Average
55 hp
Low
30 hp
High
95 hp
Displacement comparison
This model
273 ci
Average
260 ci
Low
150 ci
High
380 ci
Rated RPM comparison
This model
2,500 rpm
Average
2,200 rpm
Low
1,800 rpm
High
2,700 rpm
Engine size per PTO HP
This model
3.5 ci/hp
Average
3.5 ci/hp
Low
2.2 ci/hp
High
5.8 ci/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.
New Holland TL90A Horsepower FAQ
How much horsepower does the New Holland TL90A have?
The listed engine output is 90 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 90 hp.
How much PTO horsepower does the New Holland TL90A 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 drawbar horsepower does the New Holland TL90A have?
The listed drawbar output is 50.8 hp, close to the 55 hp benchmark average. It gives a realistic pulling-power figure of about 50.8 hp.
How much engine power reaches the PTO on the New Holland TL90A?
The PTO-to-engine transfer works out to 85.6%, from 90 engine hp to 77 PTO hp. That is a normal usable range for judging PTO implement fit.
How efficient is the New Holland TL90A for pulling work?
The drawbar-to-engine transfer is about 56.4%, from 90 engine hp to 50.8 drawbar hp. That means traction losses and drivetrain losses are a big part of the real pulling result.
Is the New Holland TL90A better judged by PTO hp or drawbar hp?
The drawbar output is about 66% of PTO output, comparing 50.8 drawbar hp with 77 PTO hp. That helps separate pulling ability from PTO implement ability.
How big is the New Holland TL90A engine?
The engine displacement is 273 ci, close to the 260 ci benchmark average. It is close to the normal engine-size range for this horsepower class.
Is the New Holland TL90A engine stressed for its PTO horsepower?
The engine has about 3.5 cubic inches per PTO hp, using 273 ci and 77 PTO hp. That is close to the normal benchmark for this category.
How much PTO horsepower per liter does the New Holland TL90A make?
The output density is about 17.1 PTO hp per liter, using 77 PTO hp and 4.5 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.
