Spark plug · ACDelco
Equivalents for the ACDelco spark plug R 4603
ACDelco R 4603, a spark plug. Compare its 31 equivalents and find the cheapest compatible plug: NGK, Bosch, Champion, Denso and more.
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31 equivalents compatible with the ACDelco R 4603 spark plug
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What can replace a ACDelco R 4603 spark plug?
The ACDelco R 4603 is interchangeable with: NGK BCP7ET, Bosch F 6 DTC, Champion C 6 BYC, Champion OE094/T10, Beru 14 F-6 DTU, Beru Z52. 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.