Spark Plug for 2021 KTM 200 Duke & More - NGK 4786

$11.99
NGK NGK Standard Spark Plug 4786
NGK NGK Standard Spark Plug 4786

Vehicles this part fits
    Part number: 4786
    UPC: 087295147863
    Condition: New
    Weight: 0.12 LBS
    Item Package Quantity: 1
    $11.99
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    NGK NGK Standard Spark Plug P/N:4786
    NGK NGK Standard Spark Plug P/N:4786
    $11.99
    $11.99

    NGK 4786 spark plug for the 2021 KTM 200 Duke 200cc and other vehicles ignites the air-fuel mixture in the cylinder. It is one of the NGK spark plugs in the Standard line, packed in the NGK yellow box.

    • NGK Standard line spark plug with a nickel alloy center electrode for consistent performance
    • Trivalent metal plating for anti-corrosion and anti-seizing properties, so the plug installs and removes easily
    • High grade alumina silicate ceramic insulator for dielectric performance
    • Solid copper core, 98% pure, for heat dissipation, conductivity and wide heat ranges
    • Cold-rolled threads to prevent cross-threading and damage to cylinder heads
    • Recommended where the factory plugs are nickel alloy; not recommended where they are precious metal

    Quick facts

    • Part: NGK 4786 spark plug
    • Fits: the 2021 KTM 200 Duke 200cc and other vehicles
    • Condition: New

    A worn plug can show up as hard starting, a misfire or a rough idle. Before you replace it, rule out a faulty plug cap, ignition coil or fuel problem that could be behind a misfire.

    Fits

    The 2021 KTM 200 Duke 200cc and the 2017-2019 KTM 390 Duke 373cc are among the vehicles it fits, and each takes one plug. It is also a spark plug for the 2018-2019 Husqvarna Svartpilen 401 373cc. Open the "Vehicles it fits" section to check your exact model and engine.

    Specifications

    Fit and size

    • Quantity per vehicle: 1
    • Thread size: M12 - 1.25 (metric)
    • Short-style plug: No
    • NGK part number: LKAR8A-9

    Build and materials

    • Metallurgy: Copper
    • Insulator: Ceramic
    • Condition: New

    Interchange: LKAR8A-9
    VR5NEU · 78039093000 · 90239093000

    Product information is for general reference and may contain errors. See our Disclaimer.

    This part cross-references / interchanges with the following part numbers:

    VR5NEU, 78039093000, 90239093000, 4786, LKAR8A-9

    Frequently Asked Questions

    Is this a KTM 390 Duke spark plug for the 2017-2019 model with the 373cc engine?

    Yes. The NGK 4786 fits the 2017-2019 KTM 390 Duke 373cc, and the engine takes one plug. Use the "Vehicles it fits" section to check other models.

    What thread size does the NGK 4786 spark plug have?

    The NGK 4786 has an M12 - 1.25 metric thread. It is not a short-style plug.

    Is the NGK 4786 one of the NGK R spark plugs or a Standard plug?

    The NGK 4786 is a Standard line plug with a nickel alloy center electrode and a solid copper core. Its NGK service number is LKAR8A-9.

    What should I look for on a worn NGK Standard spark plug?

    With the engine off and cool, look for a burned or rounded electrode, a cracked ceramic insulator or heavy deposits. Any of these can mean the plug is due for replacement.

    Can I put the NGK 4786 in an engine that came with iridium or platinum plugs?

    No. The NGK 4786 is a nickel alloy plug and is not recommended where the factory plugs are precious metal.

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