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OM648 Diesel Conversion for Mercedes G-Class

Legendary inline diesel platform re-engineered for modern expedition builds.

OM648 Diesel Platform

The OM648 inline six-cylinder diesel engine is one of the most balanced drivetrain foundations for G-Class expedition builds. It combines torque, durability and smooth long-distance operation.

Overland-G Diesel Architecture

The Overland-G Momentum drivetrain is based on proven Mercedes diesel architecture, selected for durability, serviceability and long-range expedition capability.

OM612 R5 2.7 CDI

The OM612 R5 2.7 CDI offers a compact, efficient and proven Mercedes diesel foundation for balanced expedition builds where simplicity, packaging and reliability matter.

OM648 R6 3.2 CDI

The OM648 R6 3.2 CDI represents one of the last legendary Mercedes inline diesel engines. In Overland-G Momentum, it serves as the flagship diesel architecture for customers seeking stronger refinement, torque and long-distance capability.

Expedition Cooling

Both drivetrain directions can be integrated with enhanced cooling architecture, including water-cooled intercooling where packaging and performance requirements demand it.

Paired with ZF 8HP

The diesel architecture is designed to work with ZF 8HP 8-speed automatic transmission integration, creating a refined and capable drivetrain package for classic G-Class platforms.

Continue to ZF 8HP architecture.

Engine Characteristics

The OM648 delivers strong low-end torque and stable performance under load, making it highly suitable for off-road and long-range applications.

Conversion Architecture

Integration requires custom mounting, standalone electronics, upgraded cooling systems and intake/exhaust configuration tailored to the G-Class platform.

Modern Drivetrain Integration

The OM648 is commonly paired with ZF 8HP transmission, creating a modern drivetrain configuration that improves efficiency and drivability.