8973796350 Glow Plug Control Module for 2004-05 Chevy GMC 6.6L LLY | For 04-05 Silverado Sierra 2500HD 3500HD 6.6L LLY; replaces 8973796350, 0000984143 glow plug controller

Vehicle Fitment & CompatibilityFit For: Chevrolet Silverado 3500 HD 2004-2005 | Chevrolet Silverado 2500 HD 2004-2005 | GMC Sierra 3500 HD 2004-2005 | GMC Sierra 2500 HD 2004-2005Engine Compatibility: Duramax 6.6L LLY Diesel Engine (2004-2005 Model Years)Replaces OEM Numbers: 8973796350, 0000984143 Specification DetailsOperating Voltage 12V DC (9-16V operating range)Current Capacity Up to 60A per glow plug circuitTemperature Range -40°F to 257°F (-40°C to 125°C)Connector Type Weatherproof 8-pin connector with locking mechanismHousing Material Die-cast aluminum with powder-coated finishMounting Factory mounting points with vibration-resistant brackets

• OE Number Match: Replacement glow plug control module for part numbers 8973796350 and 0000984143. Please compare the part number before purchase.
• 【EXACT FIT FOR 6.6L LLY DURAMAX】Custom-designed for 2004-2005 Chevy Silverado 2500HD & 3500HD, and GMC Sierra 2500HD & 3500HD equipped with the 6.6L LLY Duramax Diesel Engine. (Note: Please verify your engine code and year before purchasing to ensure proper fitment).
• 【DIRECT OEM REPLACEMENT】Perfectly replaces factory part numbers 8973796350 and 0000984143. Designed for a true plug-and-play installation with no extra programming required. Simply swap out your old, failing relay unit and get your truck back on the road in minutes.
• 【UPGRADED DURABILITY】Factory modules often fail due to extreme engine bay heat and heavy vibrations. Our replacement unit features an enhanced internal circuit board, a premium heat-dissipating solid housing, and thermal shock-resistant components to provide consistent operation under heavy loads.
• 【SOLVE COLD START ISSUES】Is your Duramax struggling to start in cold weather or throwing a Check Engine Light? This upgraded Glow Plug Control Module (GPCM) restores proper cylinder pre-heating, ensuring fast, reliable engine starts and clearing annoying glow plug-related error codes.