Elevate the performance of your diesel engine with the ACDelco Professional Diesel Glow Plug, specifically designed for LMM, LML, and LBZ Silverado and Sierra Duramax 6.6L models. The robust construction ensures reliable operation, while the 11V voltage rating is tailored for efficient functionality. The Glow Plug boasts a length of 136.5mm (5.2in), ensuring a perfect fit for your vehicle's system. With the included 1-year warranty, you can trust in the quality and longevity of this essential component, making it a smart choice for maintaining the integrity of your diesel engine's start system.