The Peterbilt 1987 to 2007 15 Inch Rear Air Cleaner Kit with 16 Slotted Holes is a practical and reliable solution for your Peterbilt truck. Made of stainless steel, this kit includes all the necessary hardware for easy installation. With a length of approximately 24.5 inches, it fits most Peterbilts from 1987 through 2007. The 16 slotted holes ensure efficient air filtration, keeping your engine running smoothly. Enhance the performance and longevity of your truck with this durable rear air cleaner kit.