John Deere STX30
The John Deere STX30 is a tractor produced by John Deere Lawn Tractors. It is equipped with a 398 cc 24.3 ci engine. The listed engine power is Gasoline (listed): 9 hp / 6.7 kW. Transmission: Peerless 920. Operating weight: 417 lbs 189 kg.
Engine Power
Gasoline (listed): 9 hp / 6.7 kW
Fuel & Capacities
1.25 gal
4.7 L
Transmission
Peerless 920
Operating Weight
417 lbs
189 kg
Overview
 | 1989 - 1993
Lawn tractor |
|---|
Production | |
|---|---|
Manufacturer | John Deere |
Lawn tractor | |
Built in Horicon, Wisconsin, USA | |
The STX30 was the smallest lawn tractor in the John Deere line during its production. Front headlights lights were available as a kit (AM107293). | |
John Deere STX30 Engine | |
|---|---|
9HP Kohler 398cc 1-cyl gasoline | |
Fuel tank | 1.25 gal
4.7 L |
Engine details ...  | |
John Deere STX30 Transmission | |
|---|---|
5-speed gear | |
Transmission details ...  |
Mechanical | |
|---|---|
Two-wheel drive | |
Steering | manual sector-and-pinion |
Integral mechanical disc brakes | |
Open operator station with foam-padded seat. | |
Power Take-off (PTO) | |
|---|---|
Mid PTO | independent |
Clutch | electric |
Dimensions & Tires | |
|---|---|
Wheelbase | 44.69 inches
113 cm |
Weight | 417 lbs
189 kg |
Front tire | 13x5-6 |
Rear tire | 18x6.5-8 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | flywheel alternator |
Charging amps | 15 |
Battery CCA | 200 |
Battery volts | 12 |
References | |
|---|---|
 | |
Riding Mowers Product Information Handbook published in 1991, by John Deere | |
Lawn & Garden Equipment published in 1990, by John Deere | |
Grounds Care & Recreation Products Sales Manual published in 1989, by John Deere | |
Suburban Tractors published in 1989, by John Deere | |
Operator's Manual STX30 and STX38 Lawn Tractors (OMM79672) published in 1989 |
Engine
Engine Detail — 398 cc / 24.3 ci Gasoline
Manufacturer | Kohler CF12.5-1216S |
Fuel Type | Gasoline |
Configuration | 1-cylinder, air-cooled vertical-shaft |
Displacement | 398 cc
24.3 ci |
Bore/Stroke | 3.425x2.638 inches
87 x 67 mm |
Power | 9 hp
6.7 kW |
Air cleaner | paper and foam |
Compression | 8.9:1 |
Idle RPM | 1350-3350 |
Starter volts | 12 |
Sparkplug | Champion RC12YC |
Sparkplug gap | 0.040 inches
1.016 mm |
Oil capacity | 2 qts
1.9 L |
Oil change | 50 h |
John Deere STX30 Engine | |
|---|---|
 | |
Image courtesy of Matthew Marchand |
Transmission
Transmission — Peerless 920
Transmission | Peerless 920 |
Type | belt-driven gear |
Gears | 5 forward and 1 reverse |
Oil change | sealed unit, owner service is not recommended |
 | |
Dimensions
John Deere STX30 Tires | |
|---|---|
Lawn/turf front | 13x5-6 |
Lawn/turf rear | 18x6.5-8 |
Dimensions | |
|---|---|
Wheelbase | 44.69 inches
113 cm |
Length | 60 inches
152 cm |
Width | 43.5 inches
110 cm |
Height (steering wheel) | 38.6 inches
98 cm |
Weight | 417 lbs
189 kg |
Attachments
Attachment overview | |
|---|---|
30" mid-mount mower deck | |
Snowblower | |
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. |
30" Mower deck | |
|---|---|
Type | mid-mount John Deere |
1-blade with manual lift | |
Cutting width | 30 inches
76 cm |
Cut height | 1 to 4 inch
2 to 10 cm |
Cut positions | 7 |
Photos
John Deere STX30
John Deere STX30
John Deere STX30 rear view.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for John Deere Lawn Tractors John Deere STX30.
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
John Deere Lawn Tractors John Deere STX30 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere Lawn Tractors John Deere STX30.
Converted Equivalents:
Horsepower (HP)9 hp
Kilowatts (kW)6.7 kW
Metric Horsepower (PS / CV)9.1 PS
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