Lawn Tractor · 1989Unverified
John Deere STX30
John Deere STX30 — Lawn tractor · 9 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
9 hp
Weight
189 kg
Hover a source tag to verify
Overview
ManufacturerJohn DeereReference
Lawn tractorReference
Built in Horicon, Wisconsin, USAReference
The STX30 was the smallest lawn tractor in the John Deere line during its production. Front headlights lights were available as a kit (AM107293).Reference
Two-wheel driveReference
Steeringmanual sector-and-pinionReference
Integral mechanical disc brakesReference
Open operator station with foam-padded seat.Reference
Engine
9HP Kohler 398cc 1-cyl gasolineReference
Fuel tank4.7 LReference
Kohler CF12.5-1216SReference
gasolineReference
1-cylinderReference
air-cooled vertical-shaftReference
Displacement24.3 ciReference
Bore/Stroke87 x 67 mmReference
Power6.7 kWReference
Air cleanerpaper and foamReference
Compression8.9:1Reference
Idle RPM1350-3350Reference
Starter volts12Reference
SparkplugChampion RC12YCReference
Sparkplug gap1.016 mmReference
Oil capacity1.9 LReference
Oil change50 hReference
Image courtesy of Matthew MarchandReference
Transmission
5-speed gearReference
TransmissionPeerless 920Reference
Typebelt-driven gearReference
Gears5 forward and 1 reverseReference
Oil changesealed unit, owner service is not recommendedReference
PTO & Hydraulics
Mid PTOindependentReference
ClutchelectricReference
Dimensions
Wheelbase113 cmReference
Weight189 kgReference
Front tire13x5-6Reference
Rear tire18x6.5-8Reference
Lawn/turf front13x5-6Reference
Lawn/turf rear18x6.5-8Reference
Length152 cmReference
Width110 cmReference
Height (steering wheel)98 cmReference
John Deere STX30 attachments
30" mid-mount mower deckReference
snowblowerReference
STX30 Serial Number Location
Serial number decal on the rear of the tractor, behind the left wheel.Reference
STX30 Serial Numbers
1989595001Reference
1990010001Reference
1991100001Reference
1992135001Reference
1993160000Reference
Final210000Reference
FAQ: How to read a serial number table.Reference
Electrical
GroundnegativeReference
Charging systemflywheel alternatorReference
Charging amps15Reference
Battery CCA200Reference
Battery volts12Reference
Attachment overview
30" mid-mount mower deckReference
SnowblowerReference
A twin-bag 6.5-bushel rear grass bagger (BM16868) was optional. If the tractor was operating on hills with the bagger then 35-pound wheel weights were recommended. Rear-tire chains and a rear suitcase-style weight bracket were available for use with the snowblower.Reference
30" Mower deck
Typemid-mount John DeereReference
Type1-blade with manual liftReference
Cutting width76 cmReference
Cut height2 to 10 cmReference
Cut positions7Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.