DESCRIPTION Pipe Diffuser CONDITION Used BRAND International PART NUMBER 3877679C2 PART NUMBERS 3877679C2; 3877679C1 Function of this partThis component is part of the heavy-duty truck chassis or engine system and is designed for the loads and duty cycles found in commercial service. It is built to work with OEM mounting points and connections for the specified application.Why this part mattersChoosing a correct OEM-style part helps avoid fitment issues and keeps the truck operating as the manufacturer intended. A good used part can restore function quickly while keeping repair costs under control.About the brandInternational/Navistar parts are used across a wide range of medium- and heavy-duty trucks in North American fleets.Fitment & usage Used OEM parts are a smart choice for controlling repair costs while still using original-equipment components. Always match the OEM part number(s) listed to your existing part, and consult your service manual, dealer, or technician if you are unsure about fitment. Note: Because this is a used component, normal signs of wear such as scratches, discoloration, or light surface corrosion may be present. Refer to the product photos and information on Second Truck Parts for the best representation of the part you will receive.