Spark plug · Eyquem
Equivalents for the Eyquem spark plug 550 S
The Eyquem 550 S spark plug. Find its 102 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
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What can replace a Eyquem 550 S spark plug?
The Eyquem 550 S is interchangeable with: NGK BP4H, Bosch W 7 BC, Champion L 12 Y, NGK BP6H, NGK BP4HS, NGK BP6HS. 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.