{"product_id":"mercedes-g-class-diesel-conversion-kit","title":"Mercedes G Class Diesel Conversion Kit","description":"7\toverland-g-diesel-engine-conversion-kit-mercedes-g-class\tOverland-G Diesel Engine Conversion Kit for Mercedes G-Class\t\"\u003cp\u003eThe Overland-G Diesel Engine Conversion Kit defines the drivetrain architecture for Mercedes G-Class builds developed beyond factory limitations. It is not a single component, but a complete system designed to integrate modern inline Mercedes diesel engines into expedition-ready platforms.\u003c\/p\u003e\n\n\u003cp\u003eThis conversion is typically based on OM612, OM613 or OM648 engines — selected for their mechanical robustness, torque characteristics and long-distance reliability. The goal is not only to replace the engine, but to redefine how the vehicle performs across extended travel, load conditions and remote environments.\u003c\/p\u003e\n\n\u003cp\u003eEach conversion begins with a refurbished Mercedes diesel engine prepared specifically for drivetrain integration projects. Because no two builds are identical, the engine is delivered as part of a configured system rather than as a standalone unit. Specification is determined based on the vehicle, intended use and overall build direction.\u003c\/p\u003e\n\n\u003cp\u003eFor builds that require increased output and durability, the system can be configured with a dedicated performance package. This includes an upgraded turbocharger, reinforced valve train components and recalibrated engine management software tailored to the conversion.\u003c\/p\u003e\n\n\u003cp\u003eTo integrate the inline diesel engine into the G-Class chassis, the system includes dedicated engine mounting brackets engineered specifically for OM612, OM613 and OM648 installations. These mounts ensure correct positioning, load distribution and structural compatibility within the vehicle.\u003c\/p\u003e\n\n\u003cp\u003eBecause these conversions operate outside of the original factory electronics architecture, the system also includes a standalone electrical integration solution. This allows the engine to operate independently within custom drivetrain builds and provides a clean foundation for further system integration.\u003c\/p\u003e\n\n\u003cp\u003eThermal management is a critical element of any diesel conversion. The Overland-G heavy duty cooling package provides a complete cooling architecture designed for the G-Class engine bay. Depending on configuration, the system can include engine radiator, air conditioning condenser, water-to-air aftercooler, transmission oil cooler, power steering cooler and an 800W high output fan with standalone PWM control. The assembly is built around a modular layout with removable diffuser and support for custom temperature sensor integration.\u003c\/p\u003e\n\n\u003cp\u003eDue to space limitations in the G-Class engine bay, water-to-air intercooling is often the most effective solution. The system includes multiple configurations, including solutions integrated into the original intake manifold or custom intake systems with integrated cooling elements.\u003c\/p\u003e\n\n\u003cp\u003eFor vehicles equipped with snorkel intake systems, a sealed aluminum airbox solution is available. Designed for W463 applications using OM613 or OM648 engines, the airbox connects to the snorkel through a dedicated intake interface and uses a K\u0026amp;N filter element, optimized for off-road and expedition environments.\u003c\/p\u003e\n\n\u003cp\u003eThe system can also be configured with a 3-inch performance exhaust using V-band connections. Depending on requirements, this can include catalytic converters, Cerakote coating or heat shielding for thermal management and durability.\u003c\/p\u003e\n\n\u003cp\u003eAll components are developed to function as a unified drivetrain system. This is not a universal kit — it is a configurable platform designed around the specific vehicle and build objective.\u003c\/p\u003e\n\n\u003cp\u003eBefore ordering, we recommend contacting us with your exact Mercedes G-Class model, year and configuration so the correct engine, cooling, electronics and supporting components can be specified.\u003c\/p\u003e\n\n\u003ch3\u003eIncluded components\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\"\u003eRefurbished OM612 \/ OM648 Diesel Engine\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\"\u003ePerformance Package\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\"\u003eEngine Mounting Kit\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\"\u003eConversion Electronics Kit\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\"\u003eHeavy Duty Cooling Package\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\"\u003eWater-to-Air Intercooler Kit\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\"\u003eAluminum Airbox\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\"\u003ePerformance Exhaust System\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExplore Overland-G\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\"\u003eOverland-G Platform\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\"\u003eEngineering\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\"\u003eComponents\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\"\u003eBuild Your Overland-G\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\"","brand":"Overland-G","offers":[{"title":"Default Title","offer_id":53757640540506,"sku":"OG-diesel-conv","price":21400.0,"currency_code":"EUR","in_stock":true}],"url":"https:\/\/www.fastmotion.com\/products\/mercedes-g-class-diesel-conversion-kit","provider":"FastMotion Automotive","version":"1.0","type":"link"}