
Description
Cummins 6379342 Electronic Turbocharger Actuator Kit - Genuine Holset VGT Actuator.
The Cummins 6379342 is a genuine Holset electronic actuator kit that controls your variable geometry turbocharger (VGT). Taking commands from the engine's ECU, it adjusts the turbo's vane position in real time - regulating exhaust flow through the turbine and controlling boost pressure across all operating conditions. The result is reduced turbo lag, sharper throttle response, consistent power under load, and proper engine braking and EGR performance.
Key Functions:
- Electronically adjusts VGT vane position via ECU signals
- Regulates boost pressure for responsive, efficient performance
- Supports engine braking and emissions system operation
Fitment & Specifications:
- Fits: Cummins ISC, ISL & QSB 8.9L (24V systems)
- Voltage: 24 Volt
Verify fitment with your engine serial number (ESN) or VIN before ordering.
-
⏱️
Fast shippingOrders before 12PM EST ship same business day.
-
🛡️
180-day warrantyAll parts covered from delivery date.
-
↩️
Easy returns30-day returns.
-
✅
Verify fitmentSend VIN/ESN and we’ll confirm.
Shop with confidence
Warranty & Return Information
Warranty Information
Wisent Parts offers a 180-day warranty on all parts from the date of delivery. This warranty covers orders placed directly through our website. If a part fails during this period, we’re here to help - whether it’s a replacement, repair, or refund. For full details, refer to the Warranty page.