V-groove center electrode improves ignitability and reduces quenching 98% pure copper core increases heat dissipation for reliable starts and prevents spark plug from overheating

High-grade alumina silicate ceramic insulator for superior strength and heat transfer Cold-rolled threads to prevent cross-threading and damage to cylinder heads; Trivalent plating eliminates need for anti-seize

Quantity: 1 per package Fit type: Universal Fit