Spark plug · NGK
Equivalents for the NGK spark plug 305
The NGK 305 spark plug. Browse its 227 equivalents: compatible, interchangeable and replacement spark plugs across NGK, Bosch, Champion, Denso and many more.
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What can replace a NGK 305 spark plug?
The NGK 305 is interchangeable with: NGK BPM7A, Bosch WS5F, Champion A4253030010, NGK BPM8A, NGK BPM8Y, Bosch WS6F. 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.