Spark plug · NGK
Equivalents for the NGK spark plug 5664
The NGK 5664 spark plug. 55 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…
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What can replace a NGK 5664 spark plug?
The NGK 5664 is interchangeable with: NGK BKR5EX, Bosch FR 8 DP, Champion RC10PYC, NGK BCP5EVX, NGK BKR5EVX, NGK BKR5EP-8. 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.