NGK STK 3521 - Possible spark plugs for

Details about NGK STK 3521:

  • Threaddiameter: 10.0 mm
  • Threadreach: 19 mm
  • Hexsize: 16 mm

Alternative spark plugs for NGK STK 3521:

Brand Model
Denso 4191
Denso 5363
Denso IU27
Denso U27ESR-NZU
Denso Iridium IU27
Denso Iridium stk 5363
NGK CR9EIX
Splitfire TP430B

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SPARK PLUG CONVERTER

The Spark Plug Cross references are for general reference only. Check for correct application and spec/measurements. Any use of this cross reference is done at the installers risk.
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