Spark plug · NGK
Equivalents for the NGK spark plug 4677
NGK 4677 is an automotive spark plug. All its 38 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
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What can replace a NGK 4677 spark plug?
The NGK 4677 is interchangeable with: NGK BR9EG, Denso W27ESR, Brisk LR11SL, NGK BR9ECS, NGK BR9EGV, NGK BR9EVX. 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.