OHV, Horizontal Shaft Engine (12-Volt Start) 389cc

11.7 HP, 1" Crankshaft w/ Keyway, UPSable

GX390 11.7-HP SERIES

The largest of Honda's single cylinder industrial engines. All standard Honda features plus CDI ignition w/electronic advance, oil alert feature and automatic decompression release. Fuel tanks are 7.4 Qt.

Crankshaft: 1" diameter tapped 3/8-24 UNF with keyway.
GX390K1QAE Electric Start Model: With a 12 volt starter and 3 amp charging system. (18Amp Alternator also Available).

Note: This engine is available to ship UPS.
Item Description Quantity Availability

Unit Price: $825.00/EA

In Stock
Honda has revised the advertised horse power ratings to comply with the more conservative SAEJ1349 standards.

For optimum performance and safety, we recommend you read the Owner's Manual before operating your Honda Power Equipment.

Additional Information

HONDA Overhead Valve Engines Overhead valve design delivers exceptional performance while keeping size and weight to a minimum. Built with a full range of features to keep them running for a long time.

Honda's superior four-stroke technology includes:
  • Cast Iron cylinders
  • Ball bearing supported forged crankshaft
  • Chrome top piston ring
  • Mechanical governor
  • Fixed jet float type carburetor
  • Replaceable valve guides and automatic decompression for easy starting
  • "Oil Alert" system which shuts down the engine if oil supply reaches an unsafe level
  • Transistorized ignition systems on all except 11 HP models which have CDI systems with Electronic Advance.

Honda's Oil Alertâ„¢ System offers added protection for your Honda engine. It shuts off the engine automatically before the oil level in the crankcase falls below the safe limit. Honda's Oil Alert is a simple, reliable means of preventing engine problems and assuring your engine of more time on the job.
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