Spark plug · Bosch
Equivalents for the Bosch spark plug W 3 AC
Meet the Bosch W 3 AC spark plug. Here are its 55 cross-references: equivalent, compatible and replacement plugs from NGK, Bosch, Champion, Denso and other makers.
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What can replace a Bosch W 3 AC spark plug?
The Bosch W 3 AC is interchangeable with: NGK B7H, Bosch W3A, Champion L4G, NGK B9HS, NGK BR 6 EY, NGK BR 7 ES. 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.