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• Dependable and durable
• Built to ISO and SAE standards for proven performance
• Patented SAC-9 semi-conductor resistor for maximum EMI & RFI suppression
• Copper core center electrode allows for accurate control of heat range for longer life
• TinTac® and ULTRASEAL shell for best corrosion protection of any spark plug in the industry
Manufacturer's Part Number: # 512
Big R SKU: #3755125157