Spark plug · Marchal
Equivalents for the Marchal spark plug RR31
Meet the Marchal RR31 spark plug. All its 364 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
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What can replace a Marchal RR31 spark plug?
The Marchal RR31 is interchangeable with: Bosch W3A, Champion L3G, Denso W25EN, Bosch W4A, Bosch W2AC, Bosch W3AC. 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.