The Standard Motor Products 27862 7mm Spark Plug Wire Set for Domestic Trucks is engineered to meet or exceed original equipment specifications, ensuring optimal performance and reliability for your fleet vehicles. This wire set is designed for domestic trucks, featuring a 7mm diameter, silicone insulation, and a magnetic core, providing superior conductivity and durability. The set includes nine leads, with lengths ranging from 18.5" to 28.5", accommodating various engine configurations. Each wire is equipped with OE-style spark plug and distributor boots, facilitating easy installation and a secure fit. The silicone insulation offers high-temperature resistance, protecting the wires from heat damage and extending their service life. This wire set is compatible with 8-cylinder engines, making it suitable for a wide range of domestic truck models. By choosing the Standard Motor Products 27862 Spark Plug Wire Set, fleet operators can ensure consistent engine performance, reduce maintenance costs, and minimize downtime, thereby enhancing the overall efficiency and reliability of their vehicle operations.