Spark plug · NGK
Equivalents for the NGK spark plug 307
NGK 307 is a spark plug. Browse its 188 equivalents: compatible, interchangeable and replacement spark plugs across NGK, Bosch, Champion, Denso and many more.
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What can replace a NGK 307 spark plug?
The NGK 307 is interchangeable with: NGK BMR4A, Bosch WS6E, Champion RC8J, NGK BMR6A, NGK BMR6AVP1, Bosch WS7E. 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.