+3 8x Stainless Glow Plug Nuts for 6.6l Duramax LB7-L5P 2001-2021 Chevy GMC KB-6.6l-GPN $10.95 In stock Quantity: 1 Add to Bag Product Details Did you drop a nut? Or maybe you just stripped a nut? For some reason GM doesn't include new nuts with their glow plugs. Here we have a full set of 8 new stainless glow plug wire retaining nuts! Fits: 6.6l Duramax LB7 LLY LBZ LMM LML LGH L5P 2001-2021 Chevy GMC Save this product for later Favorite