Upgrade your Peterbilt 378, 379, 388, or 389 2005 and newer model with this rear air cleaner light bar. Made of durable stainless steel, this light bar is designed for models with 15-inch Donaldson air cleaners and features 8 red LED lights. Sold in pairs, each light bar measures 23.18 inches long with an 8-inch mount and includes harnesses and lights. Practical and easy to install, this light bar attaches to brackets between the cab and the air cleaner on both sides, fitting most Peterbilt 2005 378, 379, 388, and 389 2005 and newer makes and models. Please note that it will not fit 2010 and newer 388 and 389 models with 15-inch premium cans.