• Vehicle type: unspecified
  • Rigid chassis
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1958–1959
  • 2,339 built

WhichTractor size, not the maker’s category

We looked and the record does not say what this machine is. How we decide what a machine is

J.I. Case 311-B specs: hp, weight, years

The manufacturer claimed 36.5 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.

Engine power, claimed · gross or net not stated

36.5 hp

27.2 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Case 311-B”, 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
4,074 lb
Hyd. flow
3.0 gpm
Top speed
15.5 mph

J.I. Case 311-B specs: key facts

  • The J.I. Case 311-B was built from 1958 to 1959.

  • The J.I. Case 311-B has a claimed engine power (gross or net not stated) of 27.2 kW (36.5 hp); it has no measured PTO figure.

  • The J.I. Case 311-B is two-wheel drive (2WD).

  • The J.I. Case 311-B weighs 1,848 kg (4,074 lb) unladen.

  • The J.I. Case 311-B has a dependent rear PTO running at 540 rpm.

  • The hydraulic pump of the J.I. Case 311-B delivers 11.4 L/min (3.0 gpm).

Source · Traktorenlexikon, “Case 311-B”

How does the 311-B compare with its class?

  • Limitation:

    A hydraulic pump flow of 11.4 L/min is low for its class — 48% below the median of 21.8 L/min across the 123 machines within 10% of its power that hold this figure.

  • Limitation:

    Four forward gears is low for its class — 33% below the median of 6 across the 178 machines within 10% of its power that hold this figure.

Derived by WhichTractor from 179 comparable records. How we work this out

Illustration of the 1958–1959 J.I. Case 311-B, a 36 hp farm tractor, a drawing generated from its specification record
Illustration — not a photograph

How much horsepower does a 311-B have?

The only figure for the 311-B is 36.5 hp (27.2 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)
36.5 hp

Source · Traktorenlexikon, “Case 311-B”

How much will a 311-B lift, and what is its hydraulic flow?

Hydraulic and PTO specifications for the 311-B are below.

Hydraulics & PTO — 311-B hydraulics and PTO specifications
Pump flow3.0 gpm · 11.4 L/min
Rear PTODependent, transmission-driven, 540 rpm @ 1,750 engine rpm

Source · Traktorenlexikon, “Case 311-B”

What transmission does a 311-B have?

Transmission specifications for the 311-B are below.

Transmission — 311-B transmission specifications
BrakesPedal-operated double-disc brake acting on rear wheels, designed as steering brake
SteeringMechanical worm gear steering with hydraulic steering assistance
Top speed15.5 mph · 25 km/h

Source · Traktorenlexikon, “Case 311-B”

How much does a 311-B weigh?

A 311-B weighs 4,074 lb (1,848 kg) unladen.

Weights & dimensions — 311-B weights and dimensions
Unladen weight4,074 lb · 1,848 kg
Wheelbase84.5 in · 2,146 mmGP: 2,019
Length130.0 in · 3,302 mmGP: 3,235
Width79.6 in · 2,022 mm
Height61.0 in · 1,549 mm
Ground clearance21.5 in · 546 mm
Rear track48.0–88.0 in · 1,219–2,235 mm
Turning radius, braked7.8 ft · 2.39 m

Source · Traktorenlexikon, “Case 311-B”

What oil does a 311-B take, and how much?

A 311-B engine takes 3.9 qt (3.7 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.

311-B fluid capacities, grades and service intervals
SystemCapacity
Engine oil3.9 qt · 3.7 LSource: Traktorenlexikon, “Case 311-B” · single source, not independently verified
Transmission28.0 qt · 26.5 LSource: Traktorenlexikon, “Case 311-B” · single source, not independently verified
Hydraulic12.0 qt · 11.4 LSource: Traktorenlexikon, “Case 311-B” · single source, not independently verified
Cooling system13.0 qt · 12.3 LSource: Traktorenlexikon, “Case 311-B” · single source, not independently verified

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

Which tractors compare with a 311-B?

Within 10% of its 36.5 hp at the PTO as the maker claimed it, with no laboratory test on file, the same type, and first built within 15 years of it.

Common questions about the J.I. Case 311-B

Is a 311-B two-wheel drive or four-wheel drive?

The J.I. Case 311-B is two-wheel drive (2WD).

What PTO does a 311-B have?

A 311-B has a dependent 540 rpm rear PTO.

Sources and how this page was built

Compiled from Traktorenlexikon, “Case 311-B”.

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: Case 311-B — CC BY-SA 4.0, WIKIBOOKS-TL-115265 · revision 989819. Wikibooks contributors (Traktorenlexikon). Original document