AGCO S.A. 7490

Last Updated: July 2024

Overview

The Massey Ferguson 7490 is a powerful row-crop tractor manufactured by AGCO S.A. It is equipped with a 179.7 hp (134.0 kW) Sisu 66CTA turbocharged intercooled diesel engine that delivers maximum power at 2000 rpm. The engine produces a maximum torque of 594.7 lb-ft (806.3 Nm) at 1500 rpm with a 61.9% torque rise. The tractor features a hydrostatic steering system and a sophisticated DynaStep and Dyna-VT (CVT) transmission with 21 forward and 18 reverse gears. It has a 3-point hitch with a maximum lift capacity of 13,915 lbs (61.9 kN) and a closed-center hydraulic system delivering up to 30.5 GPM (115.6 l/min) at minimum pressure and 29.3 GPM (111.0 l/min) at maximum hydraulic power. The 7490 is equipped with 380/85R30 front and 480/80R42 rear agricultural tires. With an operating weight of 16,600 lbs (7,530 kg) and dimensions of 205.9 inches in length, 80 inches in width, and 122 inches in height, it offers a balance of power and maneuverability for demanding agricultural operations.

Key Specifications

Category: Row Crop

Power Output: 179.7

Transmission: DynaStep and Dyna-VT (CVT)

Drive Type: 4WD

Operating Weight: 16600

Fuel Type: Diesel

Technical Specifications

Engine

Manufacturer: Sisu
Model: 66CTA
Cooling Type: Liquid-cooled
Cylinder Orientation: -
Valve Configuration: -
Fuel Type: Diesel
Induction Type: Turbocharged intercooled
Cylinders: 6
Displacement (ci): 402.5
Bore (in): 4.252
Stroke (in): 4.724
Rated RPM: 2200
Power Output (hp): 179.7

Transmission

Type: DynaStep and Dyna-VT (CVT)
Forward Gears: 21 and Infinite
Reverse Gears: 18 and Infinite
Total Gears: -

Dimensions

Length (in): 205.9
Width (in): 80
Height (in): 122
Operating Weight (lb): 16600

Power Take-Off (PTO)

PTO Type: -
PTO Speed 1 (rpm): -
PTO Speed 2 (rpm): -
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: 4x4 MFWD 4WD
Drive Type: 4WD
Steering Type: Hydrostatic
Coolant Capacity (qts): -
Front Tire Diameter (in): 30 (from size 380/85R30)
Front Tire Width (in): 14.9 (from size 380/85R30)
Rear Tire Diameter (in): 48 (from size 480/80R42)
Rear Tire Width (in): 18.9 (from size 480/80R42)
Front/Rear Rim Diameter (in): -
Tire Type: Ag (Agricultural)
Manufacture - End Year: 2012
Hitch Type: Three-Point Hitch
Hitch Category: Category 3
Hitch Position: Rear
Hitch Capacity (lb): 13915
Operator Station Type: Cab (CEG_Height - Top of Cab: 10 ft)
Starter Type: Electric (based on Engine - Starter volts)
Brake Type: -
Hydraulic System Type: Closed center

Test Results

Nebraska Tractor Test Laboratory - Test Date: June to September, 2007

Maximum Power and Fuel Consumption

Maximum Power: 179.7 HP (134.0 kW) at 2000 rpm
Fuel Consumption at Maximum Power: 9.73 Gal/hr (36.84 l/h) with a fuel efficiency of 0.386 lb/hp.hr (0.235 kg/kW.h)
Standard Power Take-off Speed (1000 rpm): 174.3 HP (130.0 kW) at 2034 rpm with a fuel consumption of 9.67 Gal/hr (36.61 l/h)

Drawbar Performance

Maximum Power - Turtle 8 Gear: 111.4 HP (83.1 kW) with a drawbar pull of 8195 lbs (36.5 kN) and a speed of 5.10 mph (8.21 km/h)
Fuel Consumption at Maximum Power: 0.538 lb/hp.hr (0.327 kg/kW.h) with a fuel efficiency of 13.20 Hp.hr/gal (2.60 kW.h/l)
75% of Pull at Reduced Engine Speed (Turtle 9): 86.2 HP (64.3 kW) with a drawbar pull of 6165 lbs (27.4 kN) and a speed of 5.24 mph (8.44 km/h)

Torque and Engine Performance

Maximum Torque: 594.7 lb.-ft. (806.3 Nm) at 1500 rpm
Torque Rise: 61.9% with a rise at 1750 engine rpm of 42%

Hydraulic Performance

Maximum Force Exerted: 13915 lbs (61.9 kN) through the whole range
Pump Delivery Rate: 30.5 GPM (115.6 l/min) at minimum pressure and 29.3 GPM (111.0 l/min) at maximum hydraulic power with a delivery pressure of 2265 psi (156 bar)
Hydraulic Power: 38.7 HP (28.9 kW) at a system pressure of 2610 psi (180 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): 18.46 Hp.hr/gal (3.64 kW.h/l)
Fuel Consumption: 9.73 Gal/hr (36.84 l/h) at 2000 rpm

NTTL.(2007).Nebraska Summary S614 Massey Ferguson 7490 Diesel. Lincoln, NE:Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/2926