Moroso 73686 Ultra Custom Fit Spark Plug Wire Set - 40

The Moroso 73686 Ultra 40 Custom Fit Wire Set delivers professional-grade ignition performance with advanced construction designed for high-performance and racing applications. This premium spark plug wire set combines multiple layers of protection and conductivity to ensure reliable spark delivery in demanding conditions.

Key Features:

• Locking stainless steel terminals provide secure connections that resist vibration and ensure consistent electrical contact
• High-temperature silicone boots protect against heat degradation and maintain flexibility in extreme engine bay temperatures
• Fold-over crimping creates superior terminal connections for maximum conductivity and reliability
• Silicone jacket construction shields wires from heat, chemicals, and abrasion while maintaining flexibility
• Nickel copper alloy conductor delivers excellent electrical conductivity with low resistance
• Ferrite impregnated core suppresses electromagnetic interference (EMI) and radio frequency interference (RFI)
• Kevlar center core provides exceptional tensile strength and durability
• Conductive polymer coating enhances corona and voltage breakdown resistance

The Ultra 40 series represents Moroso's commitment to engineering ignition components that withstand the rigors of racing while delivering consistent spark energy. The multi-layer construction protects against heat, vibration, and electrical interference, making this wire set ideal for street performance, drag racing, and circle track applications.