Fitment: This diesel glow plug controller will fit for Chevrolet Silverado 2500 2001-2005, for Chevrolet Silverado 3500 2004-2005, for GMC Sierra 2500 2001-2004, for GMC Sierra 3500 2004-2005, for Chevrolet Tahoe 2005, for Cadillac Escalade 2005. Replace Part Number: RY-1556 RY1556 97304030 97379635.
Important Notice: For proper installation, always measure the resistance of all glow plugs (4-cylinder: 4 plugs, 6-cylinder: 6 plugs, 8-cylinder: 8 plugs). Resistance values should be close or identical for all plugs. If any glow plug shows a different resistance, it must be replaced to avoid malfunctions when installing the glow plug control module.
Premium Materials: The diesel glow plug module controller is crafted with heat-resistant materials to ensure stable performance in high-temperature environments. Its durable casing extends lifespan by withstanding humidity and harsh conditions. Inside, high-quality insulating components enhance operational efficiency and reliability.
Function: The diesel glow plug module controller controls preheat time based on ambient temperature and engine status for smooth startup. Whether you're starting your vehicle in cold weather or after a long period of parking, this module provide the necessary support for a reliable ignitions. It maintains optimal temperature to improve combustion efficiency and reduce emissions, with real-time diagnostics and protection to prevent overheating and voltage overload, extending engine life.