The New Holland Boomer 46D tractor engine horsepower is 46 hp | 34.3 kW, and PTO horsepower is 34 hp | 25.4 kW.
Engine HP46 hp | 34.3 kW
PTO HP34 hp | 25.4 kW
PTO Transfer73.9%
Displacement136 ci | 2.2 L
New Holland Boomer 46D Horsepower Specs
Engine horsepower
46 hp | 34.3 kW
PTO horsepower claimed
34 hp | 25.4 kW
New Holland Boomer 46D Useful Horsepower Calculations
PTO-to-engine power transfer
73.9% of engine hp reaches the PTO
Engine size per PTO horsepower
4 ci per PTO hp
PTO horsepower per liter
15.5 PTO hp per L
Engine size per engine horsepower
3 ci per engine hp
Engine horsepower per liter
20.9 engine hp per L
Rated speed per PTO horsepower
76.5 rpm per PTO hp
New Holland Boomer 46D Engine Specs
Engine type
turbocharged diesel
Displacement
136 ci | 2.2 L
Bore and stroke
3.70×4.21 inches | 94 x 107 mm
Rated RPM
2600
New Holland Boomer 46D Fuel, Cooling, Starting & Service Specs
Starter volts
12
Battery volts
12
New Holland Boomer 46D Horsepower Comparison Charts
Engine horsepower comparison
This model
46 hp
Average
35 hp
Low
15 hp
High
60 hp
PTO horsepower comparison
This model
34 hp
Average
28 hp
Low
12 hp
High
50 hp
Displacement comparison
This model
136 ci
Average
110 ci
Low
50 ci
High
180 ci
Rated RPM comparison
This model
2,600 rpm
Average
2,400 rpm
Low
1,800 rpm
High
3,000 rpm
Engine size per PTO HP
This model
4 ci/hp
Average
3.1 ci/hp
Low
1.8 ci/hp
High
5 ci/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 Boomer 46D Horsepower FAQ
How much horsepower does the New Holland Boomer 46D have?
The listed engine output is 46 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 46 hp.
How much PTO horsepower does the New Holland Boomer 46D have?
The listed PTO output is 34 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 hp.
How much engine power reaches the PTO on the New Holland Boomer 46D?
The PTO-to-engine transfer works out to 73.9%, from 46 engine hp to 34 PTO hp. That is a noticeable drop, so implement sizing should be conservative.
How big is the New Holland Boomer 46D engine?
The engine displacement is 136 ci, above the 110 ci benchmark average. Bigger displacement can help low-rpm pull and load-holding feel.
Is the New Holland Boomer 46D engine stressed for its PTO horsepower?
The engine has about 4 cubic inches per PTO hp, using 136 ci and 34 PTO hp. That points to a larger-displacement, lower-stress style setup.
How much PTO horsepower per liter does the New Holland Boomer 46D make?
The output density is about 15.4 PTO hp per liter, using 34 PTO hp and 2.2 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 Boomer 46D rated at?
The rated speed is 2,600 rpm, close to the 2,400 rpm benchmark average. The 2,600 rpm figure is around normal for this class.
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.
