Maximize your fleet's uptime and minimize costly repairs with the STANDARD IGNITION GPH104~SI Diesel Glow Plug Wiring Harness. Designed for demanding diesel applications, this direct OEM replacement harness offers superior performance and reliability. Unlike inferior alternatives, the GPH104~SI is engineered with high-quality, heat-resistant materials that withstand extreme engine temperatures. Its robust construction and precision-engineered electrical terminals ensure consistent signal transmission to glow plugs, resulting in reliable cold-weather starting and optimal engine performance. The inclusion of high-temperature Viton O-rings guarantees a secure, leak-proof connection, preventing electrical failures and costly downtime. STANDARD IGNITION's commitment to quality and rigorous testing ensures that this harness will not only fit perfectly but also perform flawlessly, extending its service life and saving your fleet valuable time and money. Investing in the GPH104~SI means investing in the reliability and longevity of your diesel fleet. Choose STANDARD IGNITION for a proven solution that delivers lasting value. This trusted brand, with over a century of experience, is synonymous with quality and dependability in the automotive aftermarket. Make the smart choice and choose the GPH104~SI for superior performance, extended service life, and maximized uptime for your fleet.