The Freightliner 16.02 Inch Stainless Steel Exhaust Bellow With 4 Inch OD is a durable and reliable product that offers numerous benefits. With a length of 16.02 inches and an outer diameter of 4 inches, it is designed to fit most Freightliner makes and models. Made from stainless steel, it is not only sturdy but also environmentally friendly, as it meets the EPA 07 exhaust emission norm. This exhaust bellow is directly replaceable with OE parts, making it a practical choice for easy installation. Its direct OE replacement numbers, A0426374016 and OTR3FE012, ensure compatibility and convenience.