Holset 3803639 Turbocharger H2D Assembly

The Holset H2D turbocharger assembly (Cummins OE 3803639) is engineered for the Cummins L10 10.0L diesel engine platform. This unit utilizes a wastegated turbine housing design to regulate boost pressure across the operating range. The compressor and turbine wheels are matched specifically for the L10 displacement and fueling characteristics. Cross-reference interchange includes Holset model numbers 3532474, 3532475, and 3525746. This turbocharger serves as a direct replacement for OEM part numbers 3803639, 3532474, and 3532475. Applications span heavy-duty trucks, transit buses, and construction equipment powered by the Cummins L10 engine. The cartridge is balanced to OEM specifications for rotational stability and durability.