The Peterbilt 379, 379, 388, and 389 2005 and newer Donaldson Rear Air Cleaner Light Bar is a practical and durable accessory for your truck. Made of stainless steel, this light bar is designed for models with 13-inch Donaldson cans. Measuring 20.5 inches long with a 2.63-inch mount, each light bar features 6 red/clear LED lights and is sold in pairs. The package includes a wiring harness with Packard plugs for easy installation. This light bar attaches to the brackets between the cab and the air cleaner on both sides, fitting most Peterbilt 378, 379, 388, and 389 2005 and newer makes and models.