DENSO Auto Parts Spark Plug P/N:3490

Spark Plug StandardPatented U-Groove technology on the ground electrode allows for a larger flame front and improved ignitability. Copper core center electrode for superior thermal conductivity...

Fire a reliable spark on every stroke with the DENSO Spark Plug 4130. It's a direct-fit replacement plug for a range of Suzuki motorcycles, including the 1986-1988 SUZUKI GSX-R1100, the 1988-1989...

Spark Plug StandardPatented U-Groove technology on the ground electrode allows for a larger flame front and improved ignitability. Copper core center electrode for superior thermal conductivity...

Spark Plug StandardPatented U-Groove technology on the ground electrode allows for a larger flame front and improved ignitability. Copper core center electrode for superior thermal conductivity...

Spark Plug Double PlatinumOE grade platinum on both center and ground electrodes. Premium housing with machine-rolled threads offers secure fit. Durability over 60,000 miles. Sustained performance...