Massey Ferguson

Massey Ferguson 451

The Massey Ferguson 451 is a utility tractor from the 400 Series produced between 2002 and 2006. Built in Brazil, it features a Perkins 2.7L 3-cylinder liquid-cooled diesel engine delivering 48 hp (35.8 kW) net power. The tractor offers 8-speed gear and partially synchronized transmission options, with 8 forward and 2 reverse gears. It has two- or four-wheel drive, power steering, wet disc brakes, and a two-post foldable ROPS. The hydraulic system is open center with 11.1 gal (42.0 L) capacity and 2500 psi pressure. The rear hitch is category II/I with position and draft control and a lift capacity of 3748 lbs (1700 kg). The PTO is live with optional independent operation, featuring a 254mm mechanical dry disc clutch or optional hydraulic wet disc clutch. Dimensions vary slightly between 2WD and 4WD models, with wheelbases around 78 inches and shipping weights from 4738 to 5238 lbs. Standard tires differ for 2WD and 4WD configurations. Electrical system includes a 12-volt battery and 35 amp alternator. Attachments include Massey Ferguson 1040 and 1050 loaders with lift capacities up to 3200 lbs.

Power48 hp

Founded2002 - 2006

Model451

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Technical Specifications

Detailed specifications and technical data for Massey Ferguson 451

Power

Engine (net)	48 hp (35.8 kW)
PTO (claimed)	45 hp (33.6 kW)

Tires

2WD Standard tires (ag)	Front: 7.50-16. Rear: 14.-28
4WD Standard tires (ag)	Front: 9.5-24. Rear: 14.9-28

Engine

Type	diesel
Model	Perkins 903.27
Cooling	liquid-cooled
Starter	electric
Cylinders	3-cylinder
Emissions	Tier I
Rated RPM	2200
Air cleaner	dual dry element
Bore/Stroke	3.74x5.00 inches (95 x 127 mm)
Power (net)	48 hp (35.8 kW)
Pre-heating	thermostart
Displacement	164 ci (2.7 L)
Oil capacity	6.6 qts (6.2 L)
Starter volts	12
Coolant capacity	10 qts (9.5 L)

Capacity

Fuel	15.3 gal (57.9 L)
Hydraulic system	11.1 gal (42.0 L)

Dimensions

Width	72 inches (182 cm) (Minimum width.)
2WD Length	132.7 inches (337 cm)
4WD Length	135 inches (342 cm)
Rear tread	57 to 68 inches (144 to 172 cm)
2WD Wheelbase	78.3 inches (198 cm)
4WD Wheelbase	78.7 inches (199 cm)
Height (ROPS)	96.7 inches (245 cm)
Height folded	73.1 inches (185 cm)
2WD Front tread	50.2 to 72.2 inches (127 to 183 cm)
4WD Front tread	55.1 to 57.8 inches (139 to 146 cm)
2WD Shipping weight	4738 lbs (2149 kg)
4WD Shipping weight	5238 lbs (2375 kg)
Clearance (drawbar)	10.5 inches (26 cm)

Electrical

Ground	negative
Battery CCA	750
Battery volts	12
Charging amps	35
Charging system	alternator

Hydraulics

Type	open center
Valves	2
Capacity	11.1 gal (42.0 L)
Pressure	2500 psi (172.4 bar)
Pump flow	9.5 gpm (36.0 lpm)
Steering press.	1740 psi (120.0 bar)

Mechanical

ROPS	Two-post foldable ROPS.
Drive	Two- or four-wheel drive
Brakes	Wet disc brakes
Steering	Power steering

Production

Type	Utility tractor
Series	400 Series
Built in	Brazil
Years made	2002 - 2006

Attachments

Loader models	Massey Ferguson 1040 loader, Massey Ferguson 1050 loader
1040 Loader lift	2900 lbs (1315 kg)
1050 Loader lift	3200 lbs (1451 kg)
1040 Loader height (at pin)	111 inches (281 cm)
1050 Loader height (at pin)	121 inches (307 cm)
1040 Loader clearance (level)	103 inches (261 cm)
1050 Loader clearance (level)	113 inches (287 cm)

Transmission

Options	8-speed gear, 8-speed partially synchronized
Type (gear)	gear
Gears (gear)	8 forward and 2 reverse
Notes (gear)	Four gears, plus reverse, in two ranges.
Clutch (gear)	305mm dry disc
Oil capacity (gear)	44.4 qts (42.0 L)
Type (partially synchronized)	partially synchronized
Gears (partially synchronized)	8 forward and reverse
Notes (partially synchronized)	Four synchronized gears in two ranges with left-hand shuttle.
Clutch (partially synchronized)	305mm dry disc

Tractor hitch

Control	position and draft control
Rear Type	II/I
Rear lift (at ends)	3748 lbs (1700 kg)

Power Take-off (PTO)

Clutch	254mm mechanical dry disc
Optional	independent
Rear PTO	live
Engine RPM	540@1908 (gear), 540@1789 (shuttle)
Rear PTO Type	540 (1.375)
Optional clutch	hydraulic wet disc (With independent PTO option.)