More Information for CHAMPION 805
{Alternate Inventory Numbers: N2C}
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CHAMPION 805 Specifications
Center Electrode Tip MaterialNickel
ClassificationChampion Copper Plus Small Engine
Electrical Terminal TypeRemovable Nut
Ground Electrode Core MaterialNickel
Ground Electrode MaterialNickel Copper Alloy
Ground Electrode Quantity1
Hex TypeHex
Manufacturer Heat Range2
Measurements - Center Electrode Diameter (In.)0.1"
Measurements - Gap Size (In.)0.025"
Measurements - Gap Size (mm)0.65 MM
Measurements - Hex Size (In.)0.813"
Measurements - Hex Size (mm)20.65 mm
Measurements - Reach (In.)0.75"
Measurements - Thread Diameter (In.)0.551"
Measurements - Thread Diameter (mm)14 MM
Part DescriptionSpark Plug
Plug TypeN2C
Resistor TypeNo
Seat TypeFlat
Washer IncludedYes
Washer TypeCrush
Copper Plus; Pre-Set Gap: 0.025"
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
Platinum Power
★★ ★★★★
Double Platinum
Double Platinum
★★★★ ★★★★
★★★ ★★★★★ ★★
OEM / Interchange Numbers: 1597103, 1597403, 1599803, 21597503, 72002410, 7565476, 99917000790, 99917001490, 99917004490, 99917006090, 99917006890, 99917011690, 99917014090, 99917015090, 99917016290, N01781111, N01781116, N01781211

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