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
| Specifications |
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| Center Electrode Tip Material | Iridium | | Classification | Champion Iridium | | Electrical Terminal Type | Non-Removable Nut | | Gap Style | J Gap | | Ground Electrode Core Material | Platinum | | Ground Electrode Material | Platinum | | Ground Electrode Quantity | 1 | | Ground Electrode Tip Design | J Gap | | Hex Type | Hex | | Indexed | No | | Insulator Projection | 0.079" | | Manufacturer Heat Range | 8 | | Measurements - Center Electrode Diameter (In.) | 0.028" | | Measurements - Gap Size (In.) | 0.042" | | Measurements - Gap Size (mm) | 1.05 MM | | Measurements - Hex Size (In.) | 0.625" | | Measurements - Hex Size (mm) | 15.88 MM | | Measurements - Installed Height (In.) | 2.05" | | Measurements - Insulator Height (In.) | 0.079" | | Measurements - Reach (In.) | 1.103" | | Measurements - Thread Diameter (In.) | 0.472" | | Measurements - Thread Diameter (mm) | 12 mm | | Part Description | Spark Plug | | Plug Type | RER8ZWYPB4 | | Resistor Type | Yes | | Seat Type | Flat | | Washer Included | Yes | | Washer Type | Crush |
| OEM / Interchange Numbers: 12290R1AA01, 12290R1AA010M2, 12290R1AH01, 12290R1AH011M1, 12290R1GH01, 12290R40A01, 12290R40A02, 12290R41L01, 12290R71L01, 12290R9PA0, 12290RL6G01, 12290RN0A01, 68225755AA, SP149125AD, SP149125AE, SP225755AA
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