This service bulletin provides essential information for the replacement of Goodyear Heater Hose 83-152 across a range of Freightliner vehicle models. These models include the FLA COE, FLB COE, FLD Conventional, Business Class, FLC 112 Conventional, Century Class Conventional, Argosy COE, Cargo, Columbia, Coronado, Business Class M2, Cascadia, and the 108SD/114SD series. This bulletin is designed to ensure proper installation and maintain the integrity of the vehicle's heating system.

The purpose of this document is to guide technicians and service personnel through the correct procedure for replacing the specified heater hose. It details the necessary steps and considerations to ensure a safe and effective repair, contributing to the overall reliability and performance of the listed Freightliner vehicles. Adherence to these instructions will help prevent issues related to the cooling and heating systems.