Massey Ferguson 6490 Horsepower & PTO HP

Quick answer:

The Massey Ferguson 6490 tractor engine horsepower is 168 hp | 125.3 kW, PTO horsepower is 140 hp | 104.4 kW, and the drawbar horsepower is 121.5 hp | 90.6 kW.

Engine HP168 hp | 125.3 kW
PTO HP140 hp | 104.4 kW
Drawbar HP121.5 hp | 90.6 kW
PTO Transfer83.3%
Displacement402.5 ci | 6.6 L

Massey Ferguson 6490 Horsepower Specs

Engine horsepower 168 hp | 125.3 kW
PTO horsepower claimed 140 hp | 104.4 kW
PTO horsepower tested 145.2 hp | 108.3 kW
Drawbar horsepower tested 121.5 hp | 90.6 kW

Massey Ferguson 6490 Useful Horsepower Calculations

PTO-to-engine power transfer 83.3% of engine hp reaches the PTO
Drawbar-to-engine power transfer 72.3% of engine hp reaches the drawbar
Drawbar-to-PTO power ratio 86.8% drawbar hp vs PTO hp
Engine size per PTO horsepower 2.9 ci per PTO hp
PTO horsepower per liter 21.2 PTO hp per L
Engine size per engine horsepower 2.4 ci per engine hp
Engine horsepower per liter 25.5 engine hp per L
Rated speed per PTO horsepower 15.7 rpm per PTO hp

Massey Ferguson 6490 Engine Specs

Engine model year
Engine type turbocharged intercooled diesel
Displacement 402.5 ci | 6.6 L
Bore and stroke 4.252×4.724 inches | 108 x 120 mm
Compression 18.5:1
Rated RPM 2200

Massey Ferguson 6490 Fuel, Cooling, Starting & Service Specs

Starter volts 12
Battery volts 12

Massey Ferguson 6490 Horsepower Comparison Charts

Engine horsepower comparison

This model

168 hp

Average

210 hp

Low

120 hp

High

380 hp

PTO horsepower comparison

This model

140 hp

Average

175 hp

Low

100 hp

High

320 hp

Drawbar horsepower comparison

This model

121.5 hp

Average

150 hp

Low

85 hp

High

280 hp

Displacement comparison

This model

402.5 ci

Average

520 ci

Low

360 ci

High

750 ci

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

2.9 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 6490 Horsepower FAQ

How much horsepower does the Massey Ferguson 6490 have?

The listed engine output is 168 hp, below the 210 hp benchmark average. That is a lower-power result, so the smarter match is lighter implements and jobs that do not demand more than about 168 hp.

How much PTO horsepower does the Massey Ferguson 6490 have?

The listed PTO output is 140 hp, below the 175 hp benchmark average. For real use, size PTO implements below or near 140 hp rather than using a bigger engine-horsepower number.

How much drawbar horsepower does the Massey Ferguson 6490 have?

The listed drawbar output is 121.5 hp, below the 150 hp benchmark average. For pulling work, the safer assumption is about 121.5 hp at the drawbar before soil, ballast and tire limits are considered.

How much engine power reaches the PTO on the Massey Ferguson 6490?

The PTO-to-engine transfer works out to 83.3%, from 168 engine hp to 140 PTO hp. That is a normal usable range for judging PTO implement fit.

How efficient is the Massey Ferguson 6490 for pulling work?

The drawbar-to-engine transfer is about 72.3%, from 168 engine hp to 121.5 drawbar hp. That gives a more grounded pulling estimate than engine horsepower alone.

Is the Massey Ferguson 6490 better judged by PTO hp or drawbar hp?

The drawbar output is about 86.8% of PTO output, comparing 121.5 drawbar hp with 140 PTO hp. That helps separate pulling ability from PTO implement ability.

How big is the Massey Ferguson 6490 engine?

The engine displacement is 402.5 ci, below the 520 ci benchmark average. Smaller displacement usually means less engine size behind each horsepower number.

Is the Massey Ferguson 6490 engine stressed for its PTO horsepower?

The engine has about 2.9 cubic inches per PTO hp, using 402.5 ci and 140 PTO hp. That is a smaller-displacement, higher-output style result.

How much PTO horsepower per liter does the Massey Ferguson 6490 make?

The output density is about 21.2 PTO hp per liter, using 140 PTO hp and 6.6 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.