SOLD IN PACK OF 8 ONLY
• NGK R5671A-10 - 14MM - 5/8" Hex - 3/4" Reach - (Heat Range 10)
• NGK R5672A-9 - 14MM - 5/8" Hex - 3/4" Reach - (Heat Range 9)
• NGK R5673-8 - 14MM - 5/8" Hex - Tapered - .460 Reach - (Heat Range 8)
• NGK R5674-8 - 14MM - 5/8" Hex -Non-Tapered - .460 Reach - (Heat Range 8)
• NGK R5724-8 - 14mm - 5/8" Hex - Tapered - .708 Reach - (602/604 Crate)
• Electrode materials - Many use precious metals such as platinum or gold/palladium for greater durability and lower voltage requirements
• Electrode configurations - Fine-wire center electrodes provide better sparking and enhanced ignitability. Fine-wire ground electrodes further improve the ignitability of the plug
• Insulator configurations - Special configurations are used for the insulator noses to improve throttle response
