The Massey Ferguson 8660 tractor engine horsepower is 265 hp | 197.6 kW, PTO horsepower is 225 hp | 167.8 kW, and the drawbar horsepower is 195.1 hp | 145.5 kW.
Massey Ferguson 8660 Fuel, Cooling, Starting & Service Specs
Starter volts
12
Battery volts
12
Massey Ferguson 8660 Horsepower Comparison Charts
Engine horsepower comparison
This model
265 hp
Average
210 hp
Low
120 hp
High
380 hp
PTO horsepower comparison
This model
225 hp
Average
175 hp
Low
100 hp
High
320 hp
Drawbar horsepower comparison
This model
195.1 hp
Average
150 hp
Low
85 hp
High
280 hp
Displacement comparison
This model
512.6 ci
Average
520 ci
Low
360 ci
High
750 ci
Torque comparison
This model
955 lb-ft
Average
700 lb-ft
Low
350 lb-ft
High
1,250 lb-ft
Rated RPM comparison
This model
2,200 rpm
Average
2,100 rpm
Low
1,600 rpm
High
2,500 rpm
Engine size per PTO HP
This model
2.3 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.
Massey Ferguson 8660 Horsepower FAQ
How much horsepower does the Massey Ferguson 8660 have?
The listed engine output is 265 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 265 hp.
How much PTO horsepower does the Massey Ferguson 8660 have?
The listed PTO output is 225 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 225 hp.
How much drawbar horsepower does the Massey Ferguson 8660 have?
The listed drawbar output is 195.1 hp, above the 150 hp benchmark average. That makes the 195.1 hp drawbar number more useful than engine hp for tillage and heavy pulling.
How much engine power reaches the PTO on the Massey Ferguson 8660?
The PTO-to-engine transfer works out to 84.9%, from 265 engine hp to 225 PTO hp. That is a normal usable range for judging PTO implement fit.
How efficient is the Massey Ferguson 8660 for pulling work?
The drawbar-to-engine transfer is about 73.6%, from 265 engine hp to 195.1 drawbar hp. That gives a more grounded pulling estimate than engine horsepower alone.
Is the Massey Ferguson 8660 better judged by PTO hp or drawbar hp?
The drawbar output is about 86.7% of PTO output, comparing 195.1 drawbar hp with 225 PTO hp. That helps separate pulling ability from PTO implement ability.
How big is the Massey Ferguson 8660 engine?
The engine displacement is 512.6 ci, close to the 520 ci benchmark average. It is close to the normal engine-size range for this horsepower class.
Is the Massey Ferguson 8660 engine stressed for its PTO horsepower?
The engine has about 2.3 cubic inches per PTO hp, using 512.6 ci and 225 PTO hp. That is a smaller-displacement, higher-output style result.
How much PTO horsepower per liter does the Massey Ferguson 8660 make?
The output density is about 26.8 PTO hp per liter, using 225 PTO hp and 8.4 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 masseyferguson.com website before buying parts, sizing implements or making repair decisions.
