This Donaldson MUFFLER Oval Style 5 is a high-quality replacement part for your vehicle's exhaust and emission system. It is made of mild steel and has a coated finish, ensuring durability and longevity. With a clamp-on mounting style and universal fitment, this muffler is easy to install and compatible with a variety of vehicles. It has an inlet diameter of 4 inches and an outlet diameter of 5 inches, with a length of 31 inches. The M120713 part number is associated with the NELSON-86543M, MACK-2ME3112, FREIGHTLINER-TBB61240169, LOCATELLI-4160345, SULLAIR-2250183598, and THOMAS BUILT BUSES-61240169 OE/OEM part numbers. This muffler is perfect for those looking for a reliable replacement part for their vehicle.