More Information for CHAMPION 9407
{Alternate Inventory Numbers: RER8ZWYCB4}
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CHAMPION 9407 Specifications
Center Electrode Tip MaterialIridium
ClassificationChampion Iridium
Electrical Terminal TypeNon-Removable Nut
Gap StyleJ Gap
Ground Electrode Core MaterialNickel
Ground Electrode MaterialNickel Copper Alloy
Ground Electrode Quantity1
Ground Electrode Tip DesignJ Gap
Hex TypeHex
Insulator Projection0.08"
Manufacturer Heat Range8
Measurements - Center Electrode Diameter (In.)0.078"
Measurements - Gap Size (In.)0.041"
Measurements - Gap Size (mm)1.05 MM
Measurements - Hex Size (In.)0.625"
Measurements - Hex Size (mm)15.88 MM
Measurements - Installed Height (In.)1.99"
Measurements - Insulator Height (In.)0.08"
Measurements - Reach (In.)1.103"
Measurements - Taper Diameter (In.)0.2"
Measurements - Thread Diameter (In.)0.472"
Measurements - Thread Diameter (mm)12 mm
Part DescriptionSpark Plug
Resistor TypeYes
Seat TypeFlat
Washer IncludedYes
Washer TypeCrush
Iridium; Pre-Set Gap: 0.041"
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
★★★★ ★★★★
★★★ ★★★★★ ★★
OEM / Interchange Numbers: 101905622, 12290R1AA01, 12290R1ZA01, 12290R40A01, 12290R40A02, 12290R41L01, 12290R48H01, 12290R70A01, 12290R70A02, 12290R71L01, 12290R9PA01, 12290RN0A01, 7B0905600A, 95517022090, SP149125AD, SP149125AE

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