ISO 3842:2006/Amd 1:2025

Overview

ISO 3842:2006/Amd 1:2025 is the latest amendment to the ISO 3842 standard, which specifies the interchangeability requirements for fifth wheels used in road vehicles. Fifth wheels are critical coupling devices that enable trucks and trailers to connect securely while allowing for steering articulation. This update, issued by the International Organization for Standardization (ISO) in 2025, focuses on enhancing dimensional specifications and compatibility criteria to ensure effective interchangeability across different manufacturers and vehicle systems.