Champion Copper Spark Plug Gaskets 18MM – 10 Pack

Champion AN4027-1 Copper Spark Plug Gaskets – 18MM (10 Pack)

Stock up and save with this 10-pack of Champion solid copper spark plug gaskets. Manufactured to current aircraft standards, each AN4027-1 gasket 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
• Pack quantity: 10 gaskets
• Size: 18MM
• Material: Solid copper
• Manufactured to current aircraft standards
• Also available in 14MM and as a single unit

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.