Equivalents for the Marchal spark plug CR21C
Marchal CR21C is an automotive spark plug. Here are its 14 cross-references: equivalent, compatible and replacement plugs from NGK, Bosch, Champion, Denso and other makers.
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14 equivalents compatible with the Marchal CR21C spark plug
No equivalent for this brand selection.
What can replace a Marchal CR21C spark plug?
The Marchal CR21C is interchangeable with: Bosch M35T1, ACDelco C86H, Lodge C1, Bosch M45T1, Lodge C3BBL, KLG CK1. 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.