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NGK BUHW-2 Spark Plug

NGK BUHW-2 Spark Plug

  • Applications: Mercury Outboards (See Models Below)
  • Tungsten Electrode with Pure Alumina Silicate Ceramic Insulator
  • Check Your Owner's Manual For Proper Fit
  • Item #: 
    Model #: 


    Shipping Weight: 
    0.10 Lbs.
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    Status:  null In Stock

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    • NGK 5626 BUHW-2 Tungsten Spark Plug
    • The NGK Spark Plug is the workhorse, at the heart of smooth-running engines around the world
    • OEM Quality
    • Consistent Performance
    • Plug of Choice in Millions of Marine Engines
    • Surface Gap Plugs are Nearly Immune to Pre-Ignition, and Usually Require a Special High Energy Ignition System
    • They Can be Susceptible to Fouling, Especially in Colder Applications, but May be Necessary in High Compression Applications
    • Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
    • Corrugated Ribs Prevent Flashover
    • Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
    • Copper Core Aids in Heat Removal
    • Triple Seals Prevent Leakage


    • Mercury 4 HP (1 Cylinder) Outboards

    Note: There are more outboard motor applications for this spark plug that are not listed here. See your Owner's Manual to confirm compatibility.


    • Tungsten Center Electrode
    • Surface Discharge
    • Corrugated Ribs
    • Copper Core
    • Thread diameter: 14 mm
    • Thread reach: 12.7 mm
    • Seat type: Flat
    • Hex size: 21 mm (13/16")
    • Tip configuration: Non-Projected
    • Construction: Semi or surface discharge
    • Terminal type: Solid

    Cross Reference for NGK BUHW-2:

    • AC Delco V40FFK
    • Autolite 2872
    • Bosch W4AC
    • Bosch WEA
    • Champion L78V
    • Champion Stock 833
    • Denso SF-51
    • Denso SF51
    • Denso 6002
    • Denso Stock 6002
    • General Motors 5613358
    • Mercruiser 33-833S
    • Mercruiser 33-97182B
    • Mercruiser 33-833C
    • Mercruiser 33-97182
    • Motorcraft AVKOD
    • NGK Stock 5626
    • OMC 509922

    IMPORTANT: This chart is furnished as a guide only. Certain design differences may exist between this spark plug and another manufacturers and heat ratings can also vary. Always refer to the Manufacturer's application data to select the recommended spark plug for your specific engine



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