Holset VGT Actuator | Actuator for HE400VG | ISL EPA07 | 6379345 (24V)

Restore proper turbo performance and reliability with this Holset 24V VGT (Variable Geometry Turbo) Actuator, engineered specifically for HE400VG turbochargers found on Cummins ISL EPA07 engines. Designed to meet OEM standards, this electronic actuator precisely controls turbo vane position to optimize boost, efficiency, and emissions performance.

The actuator plays a critical role in maintaining proper turbo operation. A failing unit can lead to low power, overboost conditions, fault codes, or limp mode operation—making replacement essential for keeping your engine running at peak performance.

Key Features

• Direct OEM Replacement for Holset actuator Part #6379345
• 24-Volt Electronic Operation for heavy-duty diesel applications
• Designed for HE400VG VGT turbochargers
• Ensures accurate vane control for optimal boost and fuel efficiency
• Helps eliminate common issues like turbo lag, poor throttle response, and fault codes
• Built to meet or exceed OEM performance standards

Fitment

• Cummins ISL EPA07 Engines
• Compatible with HE400VG variable geometry turbochargers

Why Replace Your VGT Actuator?

A faulty actuator can cause:

• Loss of power or inconsistent boost
• Turbo-related fault codes and check engine lights
• Sticking vanes or improper turbo response
• Engine derate or limp mode conditions 

Replacing your actuator restores proper turbo function, improves drivability, and protects your turbocharger from further damage.

Cross Reference List:

Holset

• 6379345H
• 4034126H
• 4034128H

Cummins

• 4034126RX
• 4034128RX
• 3787564
• 4032162
• 4032675
• 4032767
• 4032767NX

Additional Interchange / Superseded Part Numbers

(Commonly referenced across OEM and aftermarket listings)

• 6379345
• 6379345RX
• 6379345NX
• 6379345HX
• 4034126
• 4034128