CHAMPION
More Information for CHAMPION 9425
{Alternate Inventory Numbers: RERX4ZWYPB1}
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CHAMPION 9425  
$11.69
Price
$0.00
Core
+ Sold in packs of 1x1
Pack
$11.69
Total
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CHAMPION 9425 Specifications
Center Electrode DesignFine Wire
Center Electrode Tip MaterialIridium
Electrical Terminal TypeCup
Gap StyleJ Gap
Ground Electrode Core MaterialPlatinum
Ground Electrode MaterialPlatinum Pad Surface
Ground Electrode Quantity1
Ground Electrode Tip DesignJ Gap
Ground Electrode Tip MaterialPlatinum
Hex Size (IN)0.551
Hex Size (MM)14/Bi-hex
Hex TypeBi-Hex
IndexedNo
Insulator Height (in)0.0866
Insulator Projection (IN)0.0866
Manufacturer Heat Range4
Plug TypeRERX4ZWYPB-1
Pre-Gap Size (IN)0.032
Pre-Gap Size (MM)0.8
Reach (IN)1.08
Resistor TypeYes
Seat TypeFlat
SkirtNo
Thread Diameter (IN)0.472
Thread Diameter (MM)12
Washer IncludedYes
Washer TypeCrush
Iridium; Pre-Set Gap: 0.032"
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
Copper
Platinum Power
Platinum
★★ ★★★★
Double Platinum
Double Platinum
★★★★ ★★★★
Iridium
Iridium
★★★ ★★★★★ ★★
OEM / Interchange Numbers: 12120040551, 12120041666

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