PACK OF 10 CHAMPION COPPER PLUS SPARK PLUGS N12YC H-D 5R6A

The Champion Copper Plus N12YC is the equivalent spark plug to H-D 5R6A, widely used in Harley-Davidson and V-Twin engines with a 14 mm thread and long reach.

Technical Data

• Equivalent to H-D 5R6A.
• 14 mm thread with long reach, typical in many more modern Harley engines.
• Installed with a 21 mm spark plug wrench.
• Copper core in the central electrode for better heat dissipation.
• Ultraseal™ coated housing that protects against corrosion and facilitates removal.

Advantages for Harley and V-Twin Engines

• Reliable ignition on long rides, daily use, and trips.
• Better temperature control in large displacement engines.
• Direct replacement for many Harley applications with the 5R6A reference.

Typical Applications

Designed for Harley-Davidson and other V-Twins using this equivalent, the N12YC is an ideal maintenance spark plug for varied use: city, twisty roads, and highways.

Installation and Maintenance

• Always check the compatibility of N12YC / 5R6A with your specific model.
• Adjust the electrode gap according to the manufacturer's specifications.
• Tighten the spark plug with the appropriate wrench, respecting the recommended torque.
• Regularly monitor the color and condition of the spark plug to anticipate potential mixture or oil issues.

Champion Copper Plus for Your V-Twin

The N12YC combines Champion's durability with the correct equivalent for many Harley engines, making it a great option for periodic maintenance.

Compatibility

L78-E82 FL; L78-79 FX; 84-99 Big Twin (Excl. Twin Cam); 75-E78 FL, FX (NU)