CHAMPION
More Information for CHAMPION 418
{Alternate Inventory Numbers: RC9YCN4}
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CHAMPION 418  
($0.73/Each)
Price
 $0.00
Core
 + Sold in packs of 1x1
Pack
 $0.73
Total
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CHAMPION 418 Specifications
Insulator Height0.06 In.
Thread Diameter0.551 In.
Hex Size0.625 In.
Reach0.75 in.
Ground Electrode Quantity1
Thread Diameter14.000 mm
Hex Size15.880 MM
Manufacturer Heat Range9
ClassificationChampion Copper Plus
Center Electrode Tip MaterialNickel Copper Alloy
Ground Electrode Core MaterialNickel Copper Alloy
Electrical Terminal TypeNon-Removable Nut
Plug TypeRC9YCN4
Resistor TypeYes
Copper Plus
Champion Copper Plus spark plugs have been original equipment on a wide variety of engines for many years. These plugs have nickel alloy centers and ground electrodes, with reasonably good wear characteristics. In addition, the extrusion of copper into the center electrode allows for increased conductivity and heat control.

Features & Benefits:
  • Dependable and durable
  • Built to ISO and SAE standards for proven performance
  • Patented SAC-9 semi-conductor resistor for maximum EMI & RFI suppression
  • Copper core center electrode allows for accurate control of heat range for longer life
  • TinTac® and ULTRASEAL shell for best corrosion protection of any spark plug in the industry
This spark plug is pre-gapped, but may require minor adjustments with a Spark Plug Gap Tool / Feeler Gauge to match your engine's specifications. For proper engine performance, gaps should be within ±0.004" of OE-Recommended value.
Which CHAMPION Spark Plug Is Right For You?

Material / Series Lifespan / Durability Performance / Ignitability Efficiency / Fuel Economy
Copper / Nickel Plus
Copper		 ★ ★
Platinum Power
Platinum		 ★★ ★★★★ ★
Double Platinum
Double Platinum		 ★★★★ ★★★★ ★
Iridium
Iridium		 ★★★ ★★★★★ ★★
OEM / Interchange Numbers: 5503

Closeout Inventory Warranty Information:
Wholesaler Closeout items have a 30 day warranty (but still are covered by our Return Policy).

CHAMPION Regular Inventory Warranty Information:
Iridium plugs 7 years - Double Platinum Power 5 years - Platinum Power 3 years - Copper Plus 2 years