Denso Junior dragster spark plugs

  • Product Code: W16FS-U
  • Availability: In Stock
  • AU$4.00

W16FS-U ideal for Go Kart racing or Drag racing-Junior dragster same as NGK B5HS

  • Threaddiameter: 14mm
  • Threadreach: 12.7mm
  • Seattype: flat
  • Hexsize: 21mm
  • Tipconfiguration: non projected
  • Construction: Standard construction
  • Terminaltype: Removable


A key feature of DENSO spark plugs is the patented U-groove ground electrode. This enables complete fuel combustion by allowing the spark to fill the gap created by the 'U' shape. The ball of fire created in the U-groove develops a larger and hotter flame front that virtually eliminates excessive fouling and erratic starts caused by poor fuel mixtures. The complete combustion from DENSOs U-groove design leads to greater fuel efficiency.

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Tags: Junior dragster