Spark plug · ACDelco
Equivalents for the ACDelco spark plug R 6609
ACDelco R 6609 is an automotive 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 ACDelco R 6609 spark plug?
The ACDelco R 6609 is interchangeable with: NGK B 8 HS, Bosch FR 78X, Champion RC 10 YC, NGK BKR6EZ, NGK BCP7 ES, NGK BKR6EZB. 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.