Champion 9403 Champion Iridium- Boxed - RE14WMPB4

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.