Nology Nology Silver Spark Plugs Fits: > 99-17 Twin Cam; 86-21 XL Sportster

Nology Silver Spark Plugs Fits: > 99-17 Twin Cam; 86-21 XL Sportster

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Nology Silver spark plugs are especially designed for high-performance engines. Silver is one of the best electrical and thermal conductors of any metal, which makes it the ultimate material for a spark plug's center electrode. The large diameter silver center electrode increases spark carrying ability and spark power. Silver is extremely resistant to erosion, guaranteeing a virtually unchanged electrode gap for the life of the spark plug. Most Nology Silver spark plugs are without a resistor, perfect for performance enthusiasts who demand the most from their engines. For racing or dependability and efficiency for everyday use, Nology Silver spark plugs deliver the most powerful spark. .

part number 239284

Buell 1994-up, 883 Evolution 1986-up, 1100 Evolution 1986-1987, 1200 Evolution 1988-up, 1450 Twin Cam 1999-2006, 1550 Twin Cam 2007-up