RN12YC and RC12YC are not interchangeable. The "R" in RN12YC signifies a resistor plug, which helps reduce electromagnetic interference. The "C" in RC12YC denotes a copper core plug, which provides better heat dissipation. Using the incorrect type of spark plug can lead to poor engine performance and potential damage.
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The Champion RC12YC and RC12YX spark plugs are not interchangeable because they have different heat ranges and design features. The RC12YC is typically used in applications that require a cooler operating temperature, while the RC12YX is designed for higher performance. Always consult your engine's specifications or a professional to ensure you're using the correct spark plug for your specific application.
GAP .030"
Yes
Rc12yc
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A champion RC12YC spark plug is 14mm thread diameter. The torque for this size is 18-22 foot-pounds (25 to 30Neuton·meters)
Harley-Davidson uses .040" gap in their engines using this plug.
RN11YC can also use RN12YC
Yes, the RC12YC spark plug is a suitable replacement for the QC12YC spark plug. Both plugs have similar specifications, but the RC12YC is designed for a broader range of applications and may offer enhanced performance in some engines. Always consult your engine's manual or a professional to ensure compatibility and optimal performance.
.035"
Champion 3071