This workshop service repair manual provides comprehensive information for the Mitsubishi 6G7 engine series, including the 6G71, 6G72, 6G73, and 6G74 variants. These V6 engines, available in displacements ranging from 2.5L to 3.5L, powered a wide array of Mitsubishi vehicles and their rebadged counterparts, such as the GTO (3000GT), Diamante, and Pajero (Montero), as well as models from Dodge, Plymouth, and Hyundai, across production years from approximately 1986 to the present. Known for their versatility and performance, these engines featured various valve configurations, fuel injection systems, and some variants offered turbocharging, making them a significant component in many automotive applications. This manual serves as an essential guide for maintaining and repairing Mitsubishi vehicles equipped with the 6G7 engine family. It covers critical areas including detailed maintenance procedures, diagnostic and troubleshooting steps, essential technical specifications, and important safety guidelines. Whether you are an owner performing routine upkeep or a professional technician undertaking complex repairs, this resource offers the in-depth knowledge required to ensure the optimal performance, reliability, and longevity of your vehicle's engine.