Inventory Unit Detail
Honda Engines iGX390-QZNR
Incoming
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Overview
New/Used New
Availability
Incoming
LocationAll Season Cycle
Stock #
N-2021-iGX390QZNR
Condition
Excellent
Product Features
Dealer Notes
Electric Start 20 Amp, Straight 1" x 2-31/64", 1/4" Keyway, STR
Description
Taking intelligence to a whole new level.
The iGX340 is technologically advanced, offering you features and performance like no other small engine in the world. With its multi-function, high performance design combined with the same superior reliability of Honda's legendary GX engines, the iGX sets a new standard for engines.
Common Applications
- Pressure washers
- Generators
- Forestry equipment
- Construction / industrial equipment
- Agricultural equipment
- Water pumps
Advanced Technology
- Integrated ECU (electronic control unit) with a self-tuning regulator (STR) governor system.
- Engine senses and adjusts RPMs to match the application's load and speed requirements.
- ECU enables drive-by-wire remote control operation of the engine and regulates functions such as throttle position.
Fuel Efficient Operation
- Fuel economy is increased by approximately 15% over a similar conventional engine
- Auto Throttle
High Power Output
- Electronic governor minimizes governor droop, increasing available power
- Allows the engine to respond significantly faster to the load
Smooth Performance
- ECU fine tunes the throttle position to maintain a precise engine speed.
- Precision engineered components result in lower vibration
Exceptionally Quiet
- Improved muffler reduces overall engine noise by up to 4 dB(A).
- Large capacity, multi-chamber exhaust system
- Reduced mechanical noise due to higher compression and piston design
- Forged steel crankshaft and rigid crankcase
Proven Reliability
- Long-life air filter
- Multifunction Oil Alert
Easy to Use and Maintain
- No manual manipulation of the choke or throttle - Easier for inexperienced users to operate
- Wide fuel filler mouth with ratchet-type fuel filler cap
- Easy maintenance - ideal for rental applications
- Easy access connectors for flexible connection of remote control and for ECU programming
- Externally serviceable Oil Alert
Easy Starting
- Auto Choke
- Low effort recoil starter with automatic decompression
- Camshaft profile is optimized for easy starting
- Large diameter recoil starter assembly
- Automotive-style ignition coil on spark plug
- Digital CDI with higher spark plug voltage
Emissions Compliant
- CARB and EPA certified
- No catalyst necessary
Available Options
- Spark arrester available
- Charge and lamp coils with multiple output options available
- Low profile versions available
Specifications
- Engine Type: Air-cooled 4-stroke OHV
- Bore x Stroke: 88 X 64 mm
- Displacement: 389 cm3
- Net Power Output*: 11.7 HP (8.7 kW) @ 3,600 rpm
- Net Torque: 19.5 lb-ft (26.4 Nm) @ 2,500 rpm
- PTO Shaft Rotation: Counterclockwise (from PTO shaft side)
- Compression Ratio: 8.2:1
- Lamp/Charge coil options: 3A, 20A
- Carburetor: Horizontal type butterfly valve
- Ignition System: Digital CDI with variable ignition timing
- Starting System: Recoil/electric
- Lubrication System: Splash
- Governor System: Electric STR (Self Tuning)
- Air Cleaner: Dual element
- Oil Capacity: 1.16 US qt (1.1 L)
- Fuel Tank Capacity: 6.4 US qts (6.1 liters)
- Fuel: Unleaded 86 octane or higher
- Dry Weight: 82 lb (37 kg)
Dimensions
- Length (min): 16.0" (407mm)
- Width (min): 19.1" (485 mm)
- Height (min): 17.7" (449 mm)
PTO
- E type: Tapered shaft
- H type: Reduction type PTO
- L type: Reduction type PTO
- P type: Threaded type (SAE)
- Q type: Straight shaft
- R type: Reduction type PTO
- V type: Tapered shaft
Engine
Engine Type | Air-cooled 4-stroke OHV |
Bore x Stroke | 88 x 64 mm |
Displacement | 389 cm3 |
Compression Ratio | 8.2:1 |
Horsepower | 11.7 hp (8.7 kW) @ 3,600 rpm |
Torque | 19.5 lb.-ft (26.4 Nm) @ 2,500 rpm |
Fuel Capacity | 6.4 US qt. (6.1 L) |
Starting System | Recoil/electric |
Dimensions
Length | 16.0 in. (407mm) |
Width | 19.1 in. (485 mm) |
Height | 17.7 in. (449 mm) |
Weight | 82 lb. (37 kg) |
Shopping Tools
Quote by Phone

Honda Engines iGX390-QZNR
(866) 362-8100
All Season Cycle
904 2nd Street West Box 1029 |
Brooks
AB
T1R 1B8
Canada
- Summer Hours Open Close
- Monday - Friday: 8:30 a.m. 5:30 p.m.
- Saturday: Closed
- Sunday: Closed
- Winter Hours Open Close
- Monday - Friday: 8:30 a.m. 5:30 p.m.
- Saturday: Closed
- Sunday: Closed
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