Champion Copper Spark Plug Gaskets 18MM – Single

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Champion AN4027-1 Copper Spark Plug Gasket – 18MM

Keep your ignition system sealed and performing to spec with these solid copper spark plug gaskets. Manufactured to current aircraft standards, the Champion AN4027-1 provides a reliable, crush-resistant seal between your spark plug and cylinder head — essential for maintaining compression and preventing exhaust gas leakage.

Features

  • Part number: AN4027-1
  • Size: 18MM
  • Material: Solid copper
  • Manufactured to current aircraft standards
  • Also available in 14MM

Why Copper?

Copper gaskets offer excellent thermal conductivity and conform reliably under torque, making them the preferred choice for aircraft spark plug applications where a consistent, leak-free seal is critical.

GTIN:
SKU: MS17840-1-A

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