8 material differences · fewer than 12

Tractor oneJohn Deere 84001994–1998No measured PTO figureTractor twoMassey Ferguson MF 8280 A1999–2002No measured PTO figure

Which should you choose?

Read our verdict on the 8400 and the MF 8280 A → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

8 material differences · 6 fields identical or within 5%, which is not counted as material

John Deere 8400 and Massey Ferguson MF 8280 A, field by field
Field	8400	MF 8280 A	Gap
Engine
Engine power, claimed claimed	256.7 hp	256.7 hp	—
Engine declared	John Deere-PowerTech 6.081 HRW-01	VALMET 645 DSBIE	differs
Displacement declared	8.12 L	8.42 L	—
Maximum torque declared	777 lb·ft · 1,054 N·m	801 lb·ft · 1,086 N·m	—
Transmission
Top speed declared	23.6 mph · 38 km/h	24.9 mph · 40 km/h	+5% MF 8280 A
Clutch declared	Pedal-operated hydraulic-wet John Deere multi-disc clutch	Pedal operated hydraulic Giman multi-disc clutch	differs
Hydraulics & hitch
Hydraulic control declared	Load sensing	—	—
Pump flow declared	—	40.6 gpm · 153.6 L/min	—
Pressure declared	—	3,205 psi · 221 bar	—
Rear PTO speeds declared	1000 rpm	540/1000 rpm	differs
Weight & dimensions
Unladen weight declared	19,191 lb · 8,705 kg	21,539 lb · 9,770 kg	+12% MF 8280 A
Maximum permissible mass declared	30,865 lb · 14,000 kg	30,865 lb · 14,000 kg	—
Wheelbase declared	—	121.1 in · 3,075 mm	—
Length declared	214.4 in · 5,447 mm	207.0 in · 5,257 mm	—
Width declared	118.6–130.4 in · 3,012–3,312 mm	99.1 in · 2,518 mm	differs
Height, over the cab declared	121.7 in · 3,090 mm	123.4 in · 3,135 mm	—
Ground clearance declared	15.9 in · 405 mm	20.1 in · 510 mm	+26% MF 8280 A
Fuel tank declared	541.0 qt · 512.0 L	433.2 qt · 410.0 L	+25% 8400

Source

Source