Spark plug · Champion

Equivalents for the Champion spark plug 21

Champion 21, a spark plug featuring reach 11.7 mm, thread 18 mm, heat range hot, tightening torque fonte 35–45 N·m · alu 35–40 N·m — ou 180°–240° (½–⅔ tour). Compare its 143 equivalents and find the cheapest compatible plug: NGK, Bosch, Champion, Denso and more.

Technical information Champion 21 spark plug

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

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143 equivalents compatible with the Champion 21 spark plug

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What can replace a Champion 21 spark plug?

The Champion 21 is interchangeable with: Bosch M12B, Champion W10, Denso MA9PU, Bosch WR4-1, Bosch FR9BPX, Bosch D10A. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the Champion 21?

Thread 18 mm, Reach 11.7 mm, Heat range Hot, Terminal SAE, 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.