Holset HE300 10cm2 Turbocharger

The Holset HE300 is a high-capacity turbo designed for medium to large diesel engines, delivering strong top-end airflow while maintaining spool characteristics suitable for performance builds. This 10 cm² version features a T3 exhaust flange, making it compatible with many OM6x6 and OM6x5 engines with appropriate adaptations.

Specifications

• Model: Holset HE300

• Turbine Housing: 10 cm²

• Exhaust Flange: T3

• Compressor Wheel Top Diameter: 54 mm

• Exhaust Wheel Top Diameter: 60 mm

• Application Type: Medium to large displacement turbodiesel engines

Performance Notes

Large 10 cm² turbine housing allows higher boost and top-end flow
 Suitable for high-power street or racing builds
 Works well with OM603, OM605, OM606, and OM617 engines when paired with upgraded fueling and tuning
 Quick spool may be slightly delayed versus smaller housings but provides strong mid-to-top power delivery

Best Use Cases

• High-performance turbodiesel builds

• Engines requiring over 400–500 HP potential (with supporting fueling)

• Track or heavy-duty turbo applications

• Stage 2–3 hybrid setups

Included / Not Included

• Includes: Genuine Holset HE300 10 cm² turbocharger

• Does Not Include: Downpipe, intercooler piping, adapters, or oil/coolant lines