Denso X31ETR High-Performance Spark Plug

The Denso X31ETR High-Performance Spark Plug is designed to meet the rigorous demands of automotive enthusiasts and professionals alike. Engineered for reliability and excellent performance, this spark plug ensures optimal combustion and longevity. For automotive use only, do not use in aircraft.

• Machine-rolled threads: Prevent seizing or cross-threading during installation and removal.
• 100% pre-fired: Each spark plug is pre-fired to guarantee the highest quality possible.
• Purified alumina powder insulator: Provides exceptional strength and superior thermal conductivity.
• Five rib insulator: Prevents flashover, ensuring a stable performance.
• Copper-glass seal: Bonds the center electrode and insulator for a gas-tight seal, ensuring durability.

Why buy the Denso X31ETR High-Performance Spark Plug?

If you are looking for a spark plug that stands out in terms of reliability, performance, and longevity, the Denso X31ETR High-Performance Spark Plug is the ideal choice. Its superior construction and design elements ensure that your vehicle performs at its best under all conditions. With machine-rolled threads to prevent common installation issues and a copper-glass seal for unmatched durability, you can trust Denso for your high-performance needs. For automotive use only, do not use in aircraft.