Upgrade your engine's performance with this premium 7mm spark plug wire designed specifically for Kohler ignition coil (part number 238057S). Featuring a high-temperature copper core wrapped in durable silicone insulation, this yellow performance wire ensures optimal conductivity and heat resistance. The heavy-duty construction is built to withstand intense engine conditions while delivering reliable spark transmission. This professional-grade replacement wire comes with robust connectors and boots for a secure fit and proper sealing. Perfect for maintaining or upgrading your engine's ignition system, this wire combines superior materials with precise engineering for enhanced durability and performance. Made in Texas, USA by Ton's Performance, a specialist in high-quality ignition system components. The wire's specialized construction helps minimize interference while maximizing spark energy transfer, ensuring consistent engine performance. Ideal for both maintenance repairs and performance upgrades when you need reliable, long-lasting ignition system components.