Spark plug · NGK
Equivalents for the NGK spark plug 7331
NGK 7331 is a spark plug. All its 133 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
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What can replace a NGK 7331 spark plug?
The NGK 7331 is interchangeable with: NGK BP6HS, Bosch W 7 BC, Champion L87YC, NGK BP6HSA, NGK PTR6D-13, NGK PTR6E-13. 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.