Holset VGT Actuator 6379349H for Cummins ISC ISL

Genuine Holset VGT Turbo Actuator 6379349H

OEM Quality. Factory Precision. Momentum Worx Trusted.

When your Cummins ISC or ISL engine starts throwing actuator codes, losing boost control, or running lazy under load, the culprit is often the VGT turbo actuator. The Genuine Holset 6379349H VGT Actuator restores factory turbo response, proper vane control, and reliable engine performance — exactly how Cummins and Holset engineered it.

At Momentum Worx, we only recommend true OEM Holset electronic actuators when reliability matters. This unit is built to deliver precise variable geometry turbo control across a wide range of medium-duty Cummins applications.

 Key Features

• ✅ Genuine Holset OEM actuator — not aftermarket guesswork
• ✅ Restores proper VGT vane position and boost response
• ✅ Helps eliminate common actuator fault codes
• ✅ Direct replacement for many Cummins ISC & ISL engines
• ✅ Built for durability in medium-duty truck and bus applications
• ✅ Momentum Worx approved for dependable performance

Common Applications

Fits many engines equipped with Holset VGT turbos, including:

• Cummins ISC
• Cummins ISL
• Medium-duty trucks
• Motorhomes / RV applications
• Buses and vocational equipment

⚠️ Important: Always verify your turbo and actuator part number before ordering.

Why Choose Genuine Holset?

Aftermarket actuators can cause calibration issues, communication faults, and premature failures. The Holset 6379349H is engineered to work seamlessly with your factory turbo and ECM strategy.

Momentum Worx Pro Tip:
If your truck is showing:

• Turbo actuator fault codes
• Slow or erratic boost
• Sticking VGT vanes
• Poor engine brake performance

…it’s time to stop guessing and install the real deal.

Cross Reference Numbers

2840220
3787563
4032823
4032823NX
4032823RX
4034124
403412400
403412400H
403412400HX
4034124H
4034124HX
4034124NX
4034124RX
5638673
6379349
6379349H
6379349HX
6379349RX

 Why Buy from Momentum Worx?

• ✔ Diesel performance specialists
• ✔ Fast shipping from our Easton, PA warehouse
• ✔ Real technical support from people who know turbos
• ✔ Trusted by working truck owners nationwide

When uptime matters, don’t gamble on cheap electronics — run the Holset actuator that keeps your Cummins pulling strong.