9 material differences · fewer than 12

Tractor oneFordson New Major (E1A)1951–1958No measured PTO figureTractor twoPorsche-Diesel S 3091961–1963No measured PTO figure

Which should you choose?

Read our verdict on the New Major (E1A) and the S 309 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

Field by field

9 material differences · 1 fields identical or within 5%, which is not counted as material

Fordson New Major (E1A) and Porsche-Diesel S 309, field by field
FieldNew Major (E1A)S 309Gap
Engine
Engine power, claimed claimed39.4 hp39.6 hp—
Engine declared—Porsche-Diesel F 309—
Displacement declared—2.63 L—
Maximum torque declared—102 lb·ft · 138 N·m—
Transmission
Top speed declared13.7 mph · 22 km/h14.7 mph · 23.6 km/h+7% S 309
Clutch declared—Single-disc dry clutch with oil-hydraulic Voith fluid coupling—
Hydraulics & hitch
Pump flow declared4.9 gpm · 18.5 L/min4.0 gpm · 15.0 L/min+23% New Major (E1A)
Pressure declared1,991 psi · 137 bar——
Rear PTO speeds declared542 rpm540 rpmdiffers
Weight & dimensions
Unladen weight declared4,564 lb · 2,070 kg3,197 lb · 1,450 kg+43% New Major (E1A)
Wheelbase declared79.5 in · 2,020 mm69.7 in · 1,770 mm+14% New Major (E1A)
Length declared130.5 in · 3,314 mm111.8 in · 2,840 mm+17% New Major (E1A)
Width declared65.0–85.0 in · 1,651–2,159 mm46.1 in · 1,170 mmdiffers
Ground clearance declared19.5 in · 495 mm14.2 in · 360 mm+38% New Major (E1A)
Turning radius, braked declared10.5 ft · 3.20 m——
Fuel tank declared72.1 qt · 68.25 L42.3 qt · 40 L+71% New Major (E1A)

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.

Fordson New Major (E1A) sources

Source
  • Source: Traktorenlexikon, “Fordson New Major”

Porsche-Diesel S 309 sources

Source
  • Source: Traktorenlexikon, “Porsche-Diesel Super S309”