NGK Spark Plug #4677/10 Solid .031" Gap - 2-BR9ECS-S

Spark Plug #4677/10 Solid .031" Gap

Featuring a 98% pure copper core and high-grade alumina silicate ceramic for improved throttle response, service life and performance.

Features:

• Cold-rolled threads
• Trivalent plating
• Specialized ground electrode designs