Spark plug · Champion

Equivalents for the Champion spark plug RF12

Champion RF12 is a spark plug with thread 18 mm, tightening torque cast iron 35–45 N·m · aluminium 35–40 N·m — or 180°–240° (½–⅔ turn), reach 11.7 mm, heat range very hot. Compare its 58 equivalents and find the cheapest compatible plug: NGK, Bosch, Champion, Denso and more.

Technical information Champion RF12 spark plug

Resistor
yes
Torque
cast iron 35–45 N·m · aluminium 35–40 N·m — or 180°–240° (½–⅔ turn)

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What can replace a Champion RF12 spark plug?

The Champion RF12 is interchangeable with: Bosch D8C, Champion RF10C, Denso M16R-U, Bosch D10B, Champion RF10CT04, Champion RF10C/014. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the Champion RF12?

Thread 18 mm, Reach 11.7 mm, Heat range Very hot, Resistor yes, Seat Flat (gasket), Torque cast iron 35–45 N·m · aluminium 35–40 N·m — or 180°–240° (½–⅔ turn)

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.