Champion Spark Plug Iridium- Boxed – RC12WMPB4

Champion Iridium – the ultimate element. This spark plug’s fine-wire iridium center and platinum ground electrodes provide the sharpest spark focus for maximum performance.

• Champion Iridium – Maximum Performance.  Premium Spark Plug
• Iridium center electrode delivers maximum life
• Fine-wire center electrode and V-trimmed for greater ignitability
• V-trimmed ground electrode promotes sharper spark focus
• Maintains stable operating temperature under all engine loads
• Heat-Active alloy allows electrodes to reach optimal temperature quickly
• Center Electrode Tip Material : Iridium Firing Tip
• Electrical Terminal Type : Removable Nut
• Ground Electrode Core Material : Platinum Pad Surface
• Ground Electrode Quantity : 1
• Hex Size : 0.625 in
• Insulator Height : 0.12 in
• Manufacturer Heat Range : 12
• Reach : 0.75 in
• Resistor Type : Yes
• Thread Diameter : 0.551 in