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Lawn Tractor · 1977Unverified
John Deere 312
John Deere 312 — 300 Series · 12 hp. Reference specifications; pending source verification.
The John Deere 312 is a lawn tractor model with an approximate power rating of 12 hp, a mid-range performance level for its class. This model was produced from 1977 to 1978. It features a 1-cylinder petrol air-cooled engine, combined with two-wheel drive and a hydrostatic transmission. The 312 has a listed operating weight of 344 kg, suitable for operations covering up to 200 acres.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
12 hp
Weight
344 kg
Catalogue coverage
Variants represented
2
Richest spec table
51 rows
Recorded power
12 hp
Recorded weight
344 kg
Transmissions
hydrostatic
Production years
1977-1978
Verified variants
0
1 linked source document displayed
Hover a source tag to verify
Overview
ManufacturerJohn DeereReference
Garden tractorReference
Built in Horicon, Wisconsin, USAReference
Two-wheel driveReference
Open operator station.Reference
Engine
12HP Kohler 476cc 1-cyl gasolineReference
Kohler K301AQSReference
gasolineReference
1-cylinderReference
air-cooled horizontal-shaftReference
Displacement29.1 ciReference
Bore/Stroke86 x 83 mmReference
Power (gross)8.9 kWReference
Air cleanerdryReference
Starter volts12Reference
Transmission
hydrostaticReference
TransmissionSundstrand 15Reference
Typeshaft-driven hydrostaticReference
Gearsinfinite forward and reverseReference
Oil typeJD All-Weather Hydrostatic FluidReference
1ThrottleReference
2Forward/ReverseReference
3BrakeReference
4Parking brakeReference
PTO & Hydraulics
Typesleeve hitchReference
Dimensions
Wheelbase116 cmReference
Weight344 kgReference
Front tire16x6.50-8Reference
Rear tire23x8.50-12Reference
Lawn/turf front16x6.50-8Reference
Lawn/turf rear23x8.50-12Reference
Length175 cmReference
Width107 cmReference
Height111 cmReference
John Deere 312 attachments
38" mid-mount mower deckReference
46" mid-mount mower deckReference
snowblowerReference
bladeReference
front-end loaderReference
312 Serial Number Location
Serial number plate located below the steering wheel on the John Deere 312.Reference
312 Serial Numbers
1977C312F070001Reference
1978C312G080001Reference
FAQ: How to read a serial number table.Reference
Electrical
GroundnegativeReference
Battery volts12Reference
Attachment overview
38" mid-mount mower deckReference
46" mid-mount mower deckReference
SnowblowerReference
BladeReference
Front-end loaderReference
The 312 was compatible with the John Deere model 33 tiller, with 26-, 34-, or 42-inch width. The 33 tiller requires the installation of the rear PTO kit (BM15851) on the tractor.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
