Champion Copper Plus Spark Plugs Ironhead Sportster 1979-Later 1000cc Pack of 8 # RL82YC HD Code # 4R5 HD# 32301-80

Weight: 1.08lb

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: Harley Ironhead Sportster 1979-Later 1000cc Package of 8, Champion # RL82YC Replaces HD Code # 4R5 Replaces HD# 32301-80