Genuine Holset HE221W
Genuine Holset HE221W
Overview
Upgrade your small-to-medium displacement diesel setup with the genuine Holset HE221W Turbocharger. Renowned for its exceptional low-end response and quick spool-time, the HE221W features a 5.5cm² turbine housing and standard T25 flange, making it one of the most popular performance upgrades for 4BT, ISF, and small-capacity diesel engines seeking high boost with minimal lag.
Engineered by Holset to strict OE specifications, this brand-new unit delivers reliable performance, crisp throttle response, and proven durability.
Key Features
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Fast Spooling: 5.5cm² wastegated turbine housing designed to minimize boost lag and increase power down low.
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Efficient Airflow: Advanced 6+6 split-blade billet compressor wheel layout for smooth efficiency across the rev range.
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Integrated Wastegate: Built-in wastegate actuator for safe, precise boost control.
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Universal Fitment: Standard T25 turbine inlet flange and M10x1.25 oil feed thread for straightforward custom installation.
Technical Specifications
| Specification | Details |
| Brand | Genuine Holset |
| Model | HE221W |
| Turbine Housing | 5.5 cm² (T25 Flange) |
| Wastegate | Internal |
| Compressor Wheel | 6+6 Split Blade |
| Compressor Inducer / Exducer | 43.5 mm / 61.0 mm |
| Turbine Wheel | 11 Blade |
| Turbine Inducer / Exducer | 52.0 mm / 45.7 mm |
| Oil Feed Thread | M10 × 1.25 mm |
| Weight | ~9.0 kg |