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Tractor · 1964Unverified

J.I. Case 931 GP

Name: J.I. Case 931 GP
Brand: J.I. Case

J.I. Case 931 GP — 30 Series · 85 hp. Reference specifications; pending source verification.

The J.I. Case 931 GP is a tractor model with a rated output of 85 horsepower, positioning it within the middle of its class in terms of power. Produced from 1964 to 1969, this model features a 6-cylinder diesel liquid-cooled engine and a two-wheel drive system with an 8-speed gearbox. The listed weight is 4043 kilograms. It is intended for use on areas of approximately 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

85 hp

Max power

54.4 kW

Weight

4043 kg

Catalogue coverage

Variants represented

Richest spec table

72 rows

Recorded power

85 hp

Recorded weight

4043 kg

Transmissions

8-speed

Production years

1964-1969

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerJ.I. CaseReference

Row-Crop tractorReference

Built in Racine, Wisconsin, USAReference

Original price$8,600 (1969)Reference

The Case 930 General Purpose tractor was introduced in 1964 by putting the engine from the 930 Comfort King into an 830 chassis, creating a row-crop version of the 930. In addition to the row-crop chassis, the 930 GP also uses an eight speed transmission instead of the six speed in the 930 standard.Reference

Two-wheel driveReference

Steeringpower assistReference

Differential mechanical dry disc brakesReference

Open operator station.Reference

Variants

930diesel standardReference

931diesel row-cropReference

940gas standardReference

941gas row-cropReference

Engine

J.I. Case 6.6L 6-cyl dieselReference

Fuel tank113.6 LReference

Fuel tank181.7 LReference

Belt (claimed)61.9 kWReference

Plows6Reference

Drawbar (tested)54.4 kWReference

J.I. CaseReference

dieselReference

6-cylinderReference

liquid-cooledReference

Displacement6.6 LReference

Bore/Stroke105 x 127 mmReference

Compression15.2:1Reference

Rated RPM1600Reference

Firing order1-5-3-6-2-4Reference

Starter volts12Reference

Power at rated engine speed63.7 kWReference

Max power54.4 kWReference

Transmission

8-speedReference

TransmissionDual-RangeReference

Gears8 forward and 2 reverseReference

Clutchdry discReference

PTO & Hydraulics

PTO (tested)63.7 kWReference

TypeDual-ControlReference

Valves1 or 2Reference

Pump flow56.8 lpmReference

Rear TypeIIReference

Rear PTOindependentReference

Rear PTO Type540/1000 (1.375)Reference

Power at rated PTO speed61.8 kWReference

Dimensions

Wheelbase274 cmReference

Weight4043 kgReference

Front tire7.50-15Reference

Rear tire18.4-34Reference

Ag front7.50-15Reference

Ag rear18.4-34Reference

Operating weight4043 kgReference

Ballasted weight6005 kgReference

Front tread136 to 211 cmReference

Rear tread162 to 243 cmReference

931 Serial Numbers

Location:Plate on instrument panelReference

19648229001Reference

19658253501Reference

19668279001Reference

19678306501Reference

19688332101Reference

19698356251Reference

FAQ: How to read a serial number table.Reference

Capacities

Diameter29 cmReference

Width20 cmReference

RPM1007Reference

Test results

Diesel 8-speed 2WDOctober 7 - 16, 1965Link: Nebraska Tractor Test 918 fileReference

PTO performanceReference

Fuel use23.8 l/hourReference

Fuel use23.1 l/hourReference

Drawbar performanceReference

Fuel use23.5 l/hourReference

Gear 4 used for power test.Reference

Max pull4560 kgReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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