Spark plug · Sev-marchal
Equivalents for the Sev-marchal spark plug GSP 665
Meet the Sev-marchal GSP 665 spark plug. Find its 53 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
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What can replace a Sev-marchal GSP 665 spark plug?
The Sev-marchal GSP 665 is interchangeable with: NGK BCP6E, Bosch F 7 DC, Champion C 9 YC, NGK BCP6ES, NGK BCP6EY, NGK D 14 Y. These spark plugs share the same mounting (thread, seat) and heat range.
Cross-references and specifications are provided for guidance only. The wrench size can vary by brand, and some data is inferred from the plug code or an equivalent reference. Always check the vehicle manufacturer's recommendation before buying and fitting.