The Autolite APP25 spark plug is a high-quality ignition component designed for car and truck engines. With a 1-year warranty, this spark plug ensures reliable performance and long-lasting durability. Manufactured by Autolite, a trusted brand in the automotive industry, this spark plug is a single unit with the manufacturer part number APP25 and SKU 534:APP25. It is a crucial part of the ignition system, providing the necessary spark to ignite the fuel-air mixture for optimal engine combustion.