CHAMPION COPPER PLUS SPARK PLUGS

$16.83
In Stock — Ready to Ship
Ships in 48hrs
30-Day Returns
Secure Checkout
Weight: 0.60
Features of Spark Plugs:

  • Patented Resistor: High voltage semi conductor resistor for maximum EMI suppression, proven to be the most durable in the industry. Certified compatibility for use in modern computer controlled, distributorless ignition systems
  • Five Rib Near Diamond Hard Insulator: Patented, zirconia toughened alumina insulator for near diamond hardness. Five rib design increases strength 35% while insuring against ignition flashover and securing the plug boot seal
  • Rust Resistant Shell Finish: Zinc plated shell resulting in maximum corrosion resistance. Also serves as thread lubricant to aid in prevention of thread seizure
  • Triple Seal Assembly: Use of upper and lower metal gasket along with sillment seal provides strongest yet least stressful seal known to the industry. Eliminates spark plug failure due to heat or mechanical induced stress
  • Copper Core Center Electrode: Provides maximum heat dissipation and durability
  • Precision Rolled Threads: Conforms exactly to I.S.O. and S.A.E. standards as specified by all engine manufacturers, resulting in easy installation and removal

Champion Copper Plus
OE Fit Spark Plug with .040″ Gap
Fits 1200cc & 1340cc Shovelhead all models Late 1977/1981, 1340cc Evolution 1984/Later with Electronic Ignition Hot Plug
Package of 4, Champion # RN12YC
Replaces HD Code # 5R6A
Replaces HD# 32311-83

Specifications coming soon.

Shipping Information

In-stock orders ship within 1–2 business days. Shipping time varies by location and carrier. Standard domestic shipping is available for most items. Expedited options may be available at checkout.

  • Free Standard Shipping on orders over $99
  • Most orders ship within 48 business hours
  • Tracking number provided upon shipment
  • Oversized items may require freight shipping

Return Policy

We accept returns on eligible new items within 30 days of delivery. Used parts are sold as-is and may not be eligible for return. Items must be in original, uninstalled condition with all original packaging.

View full Shipping & Returns policy

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Fitment information is listed in the product details above. If you have questions about compatibility for your specific model and year, please contact our team before ordering.
New parts carry the manufacturer warranty where applicable. Used parts are sold as-is and are typically tested or described in detail. See the product condition notes for specifics.
Once your order ships, you will receive an email with a tracking number. You can also log into your account at any time to view order status.
Used parts are generally sold as-is and are not eligible for return unless there was a significant misdescription. Contact us within 7 days of delivery if you have a concern.

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