Spark Plug Set (6pcs) - 5/8" Hex High Performance & Twin Plug Engines With High Compression (IGN R56 71A7)


  • $31.68
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High Performance NGK V Power Spark Plug with 5/8" hex

Our preferred spark plug for high compression twin plug applications.  With a Slightly lower depth / reach in combustion chamber for clearance with high compression / high domed pistons.

Sold as a set of 6 plugs - 2 sets for twin plug application

Alternate Part Numbers:
R56 71A7 / R5671A7 / 4091

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