Denso Iridium IW 31 Spark Plug, distributed by Malossi, features an M14 x 1.25 thread and 19 mm length, engineered for tuned engines that demand high output and consistent ignition. The iridium center...

Denso Iridium IW 31 Spark Plug, distributed by Malossi, features an M14 x 1.25 thread and 19 mm length, engineered for tuned engines that demand high output and consistent ignition. The iridium center...

Denso Iridium IW 31 Spark Plug, distributed by Malossi, features an M14 x 1.25 thread and 19 mm length, engineered for tuned engines that demand high output and consistent ignition. The iridium center...

Denso Iridium IW 31 Spark Plug, distributed by Malossi, features an M14 x 1.25 thread and 19 mm length, engineered for tuned engines that demand high output and consistent ignition. The iridium center...

Denso Iridium IW 31 Spark Plug, distributed by Malossi, features an M14 x 1.25 thread and 19 mm length, engineered for tuned engines that demand high output and consistent ignition. The iridium center...

Denso Iridium IW 31 Spark Plug, distributed by Malossi, features an M14 x 1.25 thread and 19 mm length, engineered for tuned engines that demand high output and consistent ignition. The iridium center...

Denso Iridium IW 31 Spark Plug, distributed by Malossi, features an M14 x 1.25 thread and 19 mm length, engineered for tuned engines that demand high output and consistent ignition. The iridium center...

Denso Iridium IW 31 Spark Plug, distributed by Malossi, features an M14 x 1.25 thread and 19 mm length, engineered for tuned engines that demand high output and consistent ignition. The iridium center...

Denso Iridium IW 31 Spark Plug, distributed by Malossi, features an M14 x 1.25 thread and 19 mm length, engineered for tuned engines that demand high output and consistent ignition. The iridium center...

Denso Iridium IW 31 Spark Plug, distributed by Malossi, features an M14 x 1.25 thread and 19 mm length, engineered for tuned engines that demand high output and consistent ignition. The iridium center...