Elevate the reliability and performance of your 01-16 GM 6.6L Duramax engine with the Merchant Automotive Glow Plug Nuts Set. Crafted to perfection, this set of 8 glow plug nuts is the ideal solution to ensure optimal functioning of your OE glow plugs. Designed to seamlessly accommodate factory glow plugs, the Merchant Automotive Glow Plug Nuts Set guarantees a precise fit that aligns with your engine's requirements. Engineered with precision, each nut in the set is a testament to durability and compatibility, promising to enhance your engine's efficiency and overall performance. Designed for straightforward installation, even those with moderate mechanical skills will find the process hassle-free. Vehicle Fitment: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax