WhichTractor
  • Rigid chassis
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1958–1959
  • 801 built

It sits on the standard-size/high-power boundary, so either size is a fair description. It was ranked on an engine power figure whose source does not say gross or net. WhichTractor size, not the maker’s category

Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is

Fiat 50-R specs: hp, weight, years

O.M.-FIAT CO 1D-50/Var. 10 four-cylinder diesel. The manufacturer claimed 49.3 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.

Engine power, claimed · gross or net not stated

49.3 hp

36.8 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Fiat 50 R”, claimed

This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.

Weight
5,071 lb
3-point lift
2,094 lb
Hyd. flow
5.3 gpm
Top speed
14.3 mph

Fiat 50-R specs: key facts

  • The Fiat 50-R was built from 1958 to 1959.

  • The Fiat 50-R has a claimed engine power (gross or net not stated) of 36.8 kW (49.3 hp); it has no measured PTO figure.

  • The Fiat 50-R is two-wheel drive (2WD).

  • The Fiat 50-R has a O.M.-FIAT CO 1D-50/Var. 10 engine, a 4-cylinder 4.16 L diesel unit.

  • The Fiat 50-R weighs 2,300 kg (5,071 lb) unladen.

  • The Fiat 50-R has an independent rear PTO running at 540 rpm.

  • The three-point hitch of the Fiat 50-R lifts 950 kg (2,094 lb) at the lower-link ends.

  • The hydraulic pump of the Fiat 50-R delivers 20.0 L/min (5.3 gpm).

Source · Traktorenlexikon, “Fiat 50 R”

How does the 50-R compare with its class?

  • Limitation:

    A three-point lift at the lower links of 950 kg is low for its class — 47% below the median of 1,780 kg across the 183 machines within 10% of its power that hold this figure.

  • Limitation:

    A hydraulic pump flow of 20 L/min is low for its class — 27% below the median of 27.4 L/min across the 209 machines within 10% of its power that hold this figure.

  • Strength:

    A maximum engine torque of 240 N·m is high for its class — 39% above the median of 173 N·m across the 207 machines within 10% of its power that hold this figure.

  • Limitation:

    Six forward gears is low for its class — 25% below the median of 8 across the 264 machines within 10% of its power that hold this figure.

Derived by WhichTractor from 269 comparable records. How we work this out

Illustration of the 1958–1959 Fiat 50-R, a 49 hp farm tractor, operator station not recorded — shown as an open platform, a drawing generated from its specification record
Illustration — not a photograph · operator station not recorded — shown as an open platform

How much horsepower does a 50-R have?

The only figure for the 50-R is 49.3 hp (36.8 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.

Engine, claimed (gross/net not stated)
49.3 hp

Source · Traktorenlexikon, “Fiat 50 R”

What engine is in a 50-R?

A 50-R has an O.M.-FIAT CO 1D-50/Var. 10, a 4-cylinder 4.16 L diesel engine.

Engine — 50-R engine specifications
Make & modelO.M.-FIAT CO 1D-50/Var. 10
Cylinders4, liquid-cooled
Displacement253.6 ci · 4.16 L
Max torque177 lb·ft · 240 N·m @ 1,200 rpm
Electrical system24 V

Source · Traktorenlexikon, “Fiat 50 R”

How much will a 50-R lift, and what is its hydraulic flow?

A 50-R lifts 2,094 lb (950 kg) at the lower-link ends of its Category 2 three-point hitch.

Hydraulics & PTO — 50-R hydraulics and PTO specifications
Pump flow5.3 gpm · 20.0 L/min
Hitch categoryCategory 2
Lift at ends2,094 lb · 950 kg
Rear PTOIndependent, engine-driven, 540 rpm
PTO shaft1 3/8"- 6 splines

Source · Traktorenlexikon, “Fiat 50 R”

What transmission does a 50-R have?

Transmission specifications for the 50-R are below.

Transmission — 50-R transmission specifications
Clutchpedal-operated dry single-plate clutch
Steeringmechanically operated worm steering
Top speed14.3 mph · 23 km/h

Source · Traktorenlexikon, “Fiat 50 R”

How much does a 50-R weigh?

A 50-R weighs 5,071 lb (2,300 kg) unladen.

Weights & dimensions — 50-R weights and dimensions
Unladen weight5,071 lb · 2,300 kg
Wheelbase74.8 in · 1,900 mm
Length125.2 in · 3,180 mm
Width60.4–91.9 in · 1,535–2,335 mm
Height74.6 in · 1,895 mm
Ground clearance15.7 in · 400 mm
Front track53.5–72.4 in · 1,360–1,840 mm
Rear track47.2–78.7 in · 1,200–2,000 mm
Turning radius, braked10.8 ft · 3.30 m

Source · Traktorenlexikon, “Fiat 50 R”

What oil does a 50-R take, and how much?

A 50-R engine takes 11.8 qt (11.2 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.

50-R fluid capacities, grades and service intervals
SystemCapacity
Engine oil11.8 qt · 11.2 LSource: Traktorenlexikon, “Fiat 50 R” · single source, not independently verified
Transmission34.8 qt · 32.9 LSource: Traktorenlexikon, “Fiat 50 R” · single source, not independently verified
Hydraulic5.5 qt · 5.2 LSource: Traktorenlexikon, “Fiat 50 R” · single source, not independently verified
Cooling system18.5 qt · 17.5 LSource: Traktorenlexikon, “Fiat 50 R” · single source, not independently verified

Always confirm against the operator’s manual for your machine before service.

Which tractors compare with a 50-R?

Within 10% of its 49.3 hp of claimed engine power, the same type, and first built within 15 years of it.

Common questions about the Fiat 50-R

Is a 50-R two-wheel drive or four-wheel drive?

The Fiat 50-R is two-wheel drive (2WD).

What PTO does a 50-R have?

A 50-R has a independent 540 rpm rear PTO on a 1 3/8"- 6 splines shaft.

Sources and how this page was built

Compiled from Traktorenlexikon, “Fiat 50 R”.

Sources checked

14 SEP 2026

Spotted an error?

Sources

Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution

  1. Traktorenlexikon: Fiat 50 R — CC BY-SA 4.0, WIKIBOOKS-TL-121764 · revision 1072331. Wikibooks contributors (Traktorenlexikon). Original document