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Cummins ISB 6.7L turbo HE351VE 3798327 with actuator front view

HE351VE 3798327 4309307 Turbocharger with Actuator for Cummins ISB QSB 6.7L EPA13

The HE351VE (3798327 / 4309307) with actuator is the complete Holset VGT turbocharger assembly for the Cummins ISB and QSB 6.7L engines on the EPA13 emissions platform in medium-duty commercial trucks and buses. The electronic actuator comes pre-installed and calibrated to the turbo body — no transfer, no pairing procedure. Also available without actuator. Built new, dynamically balanced, ships with gaskets. We supply shops, fleets, and distributors.

Turbo Model

HE351VE (Holset VGT, complete assembly with actuator)

OEM / Interchange Numbers

3798327, 3798327RX, 3798361, 3798378, 3879503, 4309307, 5328154, 5328172, 3781732, 3775415, 4352471, 4352471RX

Application

Cummins ISB/QSB 6.7L EPA13 (medium-duty commercial trucks, buses)

Service & Support

  • 1-Year Unlimited-Mileage Warranty
  • US Stock, Fast Dispatch
  • Bulk Orders Welcome
  • White-Label Support
  • Fully Certified
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FAQ

Yes. Complete HE351VE assembly with pre-installed, pre-calibrated electronic VGT actuator.

The Cummins ISB and QSB 6-7L on the EPA13 platform in medium-duty commercial trucks and buses. For Dodge Ram pickup turbos, see our Dodge Cummins page.

The actuator ships calibrated to this turbo body. After installation, verify VGT operation through the ECM — no separate pairing procedure required.

Brand new, dynamically balanced. No core charge. One-year unlimited-mileage warranty.

Yes. US stock, volume pricing for shops, fleets, and distributors.

It replaces 3798327, 3798327RX, 3798361, 3798378, 3879503, 4309307, 5328154, 5328172, 3781732, 3775415, 4352471, and 4352471RX. Match by the number on the turbo nameplate before ordering.

HE351VE 3798327 4309307 with Actuator: Calibrated Complete Assembly

The Holset VGT actuator must be calibrated to the turbo body. Ordering the complete pre-calibrated assembly eliminates the most common comeback on ISB/QSB 6.7L EPA13 turbo jobs — actuator fault codes after a body-only swap.

With vs without actuator

ListingActuatorBest for
This pageIncluded, pre-calibratedFailed actuator, no pairing tools, fastest job
Without actuatorNot includedActuator tests good, save cost

Cross Reference Numbers

This turbocharger replaces the following OE and interchange numbers:

  • 3798327
  • 3798327RX
  • 3798361
  • 3798378
  • 3879503
  • 4309307
  • 5328154
  • 5328172
  • 3781732
  • 3775415
  • 4352471
  • 4352471RX

Related configuration: 3798327 without actuator.

Installation and Care

  • Find out why the old turbo failed before installing the new one. Oil starvation or contaminated oil will destroy the replacement the same way.
  • Change the engine oil and filter. Flush or replace the oil feed line.
  • Complete assembly — install, connect harness, verify via ECM.
  • Replace exhaust manifold and oil drain gaskets (included).
  • Flush oil feed line. Prime turbo before startup.
  • Idle 3-5 minutes; confirm VGT sweep with a scan tool.

See our quality process for details.

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