More Information for CHAMPION 9804
{Alternate Inventory Numbers: RN8WYPB3}
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CHAMPION 9804 Specifications
Center Electrode Diameter (IN)0.103
Center Electrode Tip MaterialIridium
Electrical Terminal TypeNon-Removable Nut
Gap StyleJ Gap
Ground Electrode Core MaterialPlatinum
Ground Electrode MaterialPlatinum Pad Surface
Ground Electrode Quantity1
Ground Electrode Tip DesignJ Gap
Hex Size (IN)0.813
Hex Size (MM)20.650
Hex TypeHex
Installed Height (in)2.24
Insulator Height (in)0.06
Insulator Projection (IN)0.06
Manufacturer Heat Range8
Plug TypeRN8WYPB3
Pre-Gap Size (IN)0.030
Pre-Gap Size (MM)0.75
Reach (IN)0.75
Resistor TypeYes
Seat TypeFlat
Taper Diameter (IN)0.27
Thread Diameter (IN)0.551
Thread Diameter (MM)14.000
Washer IncludedYes
Washer TypeCrush
Iridium; Pre-Set Gap: 0.03"
Champion Iridium spark plugs offer maximum performance regardless of engine or ignition type. Each plug has an extremely fine-wire iridium center electrode that is "laser-locked" to the center electrode, and a platinum V-trimmed ground electrode to ensure the longest life and greatest erosion resistance.

Features & Benefits:
  • Platinum ground to ensure high performance and long life
  • Maintains stable operating temperature under all engine loads
  • Greatest engine performance regardless of engine type or ignition system
  • Extremely fine-wire iridium center electrode laser-locked to center electrode
  • Exclusive Heat-active Alloy allows electrodes to reach optimal temperature quickly
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
★★★★ ★★★★
★★★ ★★★★★ ★★

Attention California Customers - Warning: This product can expose you to chemicals including Lead, which are known to the State of California to cause cancer and Phthalates which are known to cause birth defects or other reproductive harm. For more information go to

OEM / Interchange Numbers: XP63, XP64

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