Spark plug · Eyquem
Equivalents for the Eyquem spark plug M40X
Meet the Eyquem M40X spark plug. 211 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…
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What can replace a Eyquem M40X spark plug?
The Eyquem M40X is interchangeable with: NGK DCP8E, Bosch YR5DDE, Champion RA6Y, NGK DCPR8E, NGK DCP8EVX, NGK DCPR8EN. 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.