Spark plug · NGK
Equivalents for the NGK spark plug 204
NGK 204 is a spark plug. Find its 33 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
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What can replace a NGK 204 spark plug?
The NGK 204 is interchangeable with: NGK B7HS, Bosch W 5 AC, Champion L6G, Bosch W 225 T 1, Bosch W 225 P 11 S, Champion L 81. 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.