Spark plug · Champion

Equivalents for the Champion spark plug 21S

The Champion 21S spark plug with thread 18 mm, tightening torque fonte 35–45 N·m · alu 35–40 N·m — ou 180°–240° (½–⅔ tour), heat range hot. All its 149 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…

Technical information Champion 21S spark plug

Torque
fonte 35–45 N·m · alu 35–40 N·m — ou 180°–240° (½–⅔ tour)

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149 equivalents compatible with the Champion 21S spark plug

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What can replace a Champion 21S spark plug?

The Champion 21S is interchangeable with: Bosch WR4-1, Champion F11Y, Denso D98, Bosch FR9BPX, Bosch D8A, Bosch D10B. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the Champion 21S?

Thread 18 mm, Heat range Hot, Resistor No, Seat Flat (gasket), Torque fonte 35–45 N·m · alu 35–40 N·m — ou 180°–240° (½–⅔ tour)

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.