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Honda GX340 / GX390 / GX420

Honda GX390, GX340 & GX420 Engine Parts – Maximize Power, Efficiency & Reliability

Empower your Honda GX390, GX340, and GX420 engines with high-performance parts and upgrades that bring out their full potential. These engines are known for their reliability, strength, and versatility, powering a wide range of applications from heavy-duty industrial equipment to off-road recreational vehicles. Our selection of parts for the GX390, GX340, and GX420 models offers the quality and innovation you need to optimize performance, boost power, and increase efficiency.

  • 6622 Electric Start ARC Billet Flywheel

    6622 Electric Start ARC Billet Flywheel, Honda GX340/GX390

    (3)

    SFI certified ARC Racing GX390 Electric Start Adjustable Flywheel for the Honda GX340 / GX390 / 420cc / 460cc engines. The ARC Billet Flywheels are CNC machined from 6061 T-6 Aluminum. It weighs 5.40 lbs. The main feature of this design is the steel...
    P3,941.80
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  • 6623 ARC Billet Flywheel, GX340/390 Non-Adj.

    6623 ARC Billet Flywheel, GX340/390 Non-Adj.

    (1)

    SFI certified ARC Racing Electric Start flywheel for the Honda GX340 / GX390 / 420cc / 460cc engines. The keyway is fixed in the stock position of 24 degrees with a stock key. Will work with the stock pull rope. No coil bracket is required, uses the...
    P2,751.82
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  • 6623-E GX340/GX390 Electric/Pull Start Billet Flywheel

    6623-E GX340/GX390 Electric/Pull Start Billet Flywheel

    Can be used for electric or pull start! ARC Racing non-adjustable Billet SFI Certified flywheel for the Honda GX340 / GX390 / 420cc / 460cc engines is now both electric and pull start capable. The key way is fixed in the stock position of 24 degrees with...
    P3,495.55
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  • 6693 GX390 UT2 BILLET FLYWHEEL

    6693 GX390 UT2 BILLET FLYWHEEL

    ARC Racing Billet SFI Certified Flywheel for the Honda GX340 / GX390 / 420cc / 460cc engines. For use with the Honda UT2 style coil only. The keyway is fixed in the stock position with a stock key. Will work with the stock pull rope only.No coil...
    P2,751.82
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  • 6693-E GX390 UT2 Electric Start Billet Flywheel

    6693-E GX390 UT2 Electric Start Billet Flywheel

    Can be used for electric or pull start! ARC Racing non-adjustable Billet SFI Certified flywheel for the Honda GX340 / GX390 / 420cc / 460cc engines is now both electric and pull start capable. For use with the Honda UT2 style coil only. The...
    P3,495.55
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  • 6774 Honda GX340/390 4.51" Billet Rod

    6774 Honda GX340/390 4.51" Billet Rod

    (2)

    ARC billet +.100" long connecting rod for the Honda GX390-460cc clone engine. 4.510" center to center for a 1.416" crank pin and a .788" wrist bore. Manufactured from domestic 7075-T651 aluminum and uses 5/16" rod bolts designed and produced by ARP. Also...
    P2,230.46
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  • 6877 Pulse Inlet Fitting

    6877 Pulse Inlet Fitting

    (1)

    Pulse Inlet Fitting These fittings go in the clone valve cover in order to pulse the fuel pump. We sell the valve cover with the fitting already installed as well.
    P29.75
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  • 6888BK 3.5x4 Pre-Filter

    6888BK 3.5x4 Pre-Filter

    (7)

    A simple, inexpensive pre-filter that protects your engine without sacrificing horsepower. Clean with a mild detergent and water. Let air dry in the Sun  ***Do Not oil***
    P133.72
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  • 6889RD 3.5x5 Foam Pre-Filter

    6889RD 3.5x5 Foam Pre-Filter

    (1)

    Easy to clean washable foam Pre-Filter helps your filter do it's job in overly dusty conditions.  Wash with a mild detergent and water. Let air dry in the Sun.  
    P33.47
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  • 6899 Angled Air Filter

    6899 Angled Air Filter

    (5)

    The standard angled air filter used in most 4 cycle karting engines. 3-1/2" x 4" with a 20 degree angle. The inside diameter of the mounting flange is 2-7/16". Most OHV kart engines will require an angled air filter Wash with K&N filter cleaner or a...
    P163.47
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  • 6905 Red Fuel Line

    6905 Red Fuel Line

    (12)

    RED Fuel Line by the foot.Durable and PliableTo order, use Quantity to show how many feet of hose needed.  $0.65/foot
    P10.41
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