Hey there Sierra owners! If you're dealing with a damaged or missing fender liner on your GMC Sierra 2500 HD or 3500 HD, this FITRITE replacement has you covered. This is specifically designed for the front right passenger side on 2011-2014 models, so you know it's going to fit perfectly. Made from durable plastic that can handle road debris, water, and all the elements your truck encounters. The part numbers match up with OEM specifications - GM1249233 and 22739803 - so you're getting a quality replacement that installs just like the original. Best part? It comes brand new in the box with a full 1-year warranty for peace of mind. Installation is pretty straightforward if you're handy with basic tools, though you might want a professional if you're not comfortable working around wheel wells. This isn't some generic universal part that you have to force to fit - it's vehicle-specific engineering that snaps right into place. Perfect for when your original liner has cracked from cold weather, torn off on a trail, or just worn out over time. Keeping your fender liner intact helps protect important components in your engine bay and wheel well from road spray and debris. At this price with the warranty coverage, it's a no-brainer replacement that'll keep your Sierra looking and functioning great for years to come.