6 material differences · fewer than 12

Tractor oneDavid Brown 4600 Selectmatic1968–1971No measured PTO figureTractor twoMassey Ferguson MF 154 (A)1973–1983No measured PTO figure

Which should you choose?

Read our verdict on the 4600 Selectmatic and the MF 154 (A) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

Field by field

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

David Brown 4600 Selectmatic and Massey Ferguson MF 154 (A), field by field
Field4600 SelectmaticMF 154 (A)Gap
Engine
Engine power, claimed claimed50.0 hp50.0 hp—
Engine declared—Perkins AD 3.152 S—
Displacement declared—2.50 L—
Maximum torque declared140 lb·ft · 190 N·m127 lb·ft · 173 N·m+10% 4600 Selectmatic
Transmission
Top speed declared15.5 mph · 25 km/h15.5 mph · 25 km/h—
Clutch declaredPedal-operated, dry and two-stage BORG & BECK double clutchPedal operated dry and air cooled LUK double clutchdiffers
Hydraulics & hitch
Pump flow declared—7.1 gpm · 27.0 L/min—
Pressure declared—2,418 psi · 166.7 bar—
Rear PTO speeds declared540/1000 rpm540/1000 rpm—
Weight & dimensions
Unladen weight declared3,990 lb · 1,810 kg4,475 lb · 2,030 kg+12% MF 154 (A)
Wheelbase declared79.8 in · 2,026 mm81.9 in · 2,080 mm—
Length declared121.5 in · 3,086 mm138.6 in · 3,520 mm+14% MF 154 (A)
Width declared64.0 in · 1,626 mm——
Ground clearance declared19.8 in · 502 mm12.6 in · 320 mm+57% 4600 Selectmatic
Turning radius, braked declared10.3 ft · 3.15 m10.9 ft · 3.31 m—
Fuel tank declared55.3 qt · 52.3 L65.5 qt · 62.0 L+19% MF 154 (A)

Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.

David Brown 4600 Selectmatic sources

Source
  • Source: Traktorenlexikon, “David Brown 4600”

Massey Ferguson MF 154 (A) sources

Source
  • Source: Traktorenlexikon, “Massey Ferguson MF 154”
  • Source: Traktorenlexikon, “Massey Ferguson MF 255”