MSD Ignition Spark plug

Iridium Tip Spark Plug; 4 Pack; Plug Type 1ir4y; [available While Supplies Last];

Iridium Tip Spark Plug; 4 Pack; Plug Type 1ir5l; 14 Mm. Thread; 0.6910 Reach;

Iridium Tip Spark Plug; 4 Pack; Plug Type 1ir5y; [available While Supplies Last];

* Proprietary Ceramic Formula * Unique Insulator Design * Yttrium Copper Core * Machined Electrode * 1mm Iridium Tip * Outlast Performance Plugs * Improves Comprehensive Drivability And Economy ...Read More

Iridium Tip Spark Plug; 4 Pack; Plug Type 7ir4y; [available While Supplies Last];

Iridium Tip Spark Plug; 4 Pack; Plug Type 9ir5l; [available While Supplies Last];

* Proprietary Ceramic Formula * Unique Insulator Design * Yttrium Copper Core * Machined Electrode * 1mm Iridium Tip * Outlast Performance Plugs * Improves Comprehensive Drivability And Economy ...Read More

Iridium Tip Spark Plug; 4 Pack; Short Style Of 6ir6ys; [available While Supplies Last];

Iridium Tip Spark Plug; 4 Pack; Plug Type 7ir6ys; 14 Mm. Thread; 0.7500 Reach;