Turbo Turbocharger HE300VG for Dodge Ram Cummins ISB 6.7L (2013-2018), Holset

Turbo Turbocharger HE300VG for Dodge Ram Cummins ISB 6.7L (2013-2018), Holset

This is a Holset HE300VG variable-geometry turbocharger, cross-referenced to OE number 3787604 and a wide range of related interchange numbers, built for the Dodge Ram with the Cummins ISB 6.7L diesel engine from 2013 to 2018. If you've noticed a loss of power, boost or actuator-related trouble codes, or unusual whining from your Ram's turbo, a failing HE300VG is a well-known cause on this engine.

Why the HE300VG Matters on the 6.7L Cummins

The HE300VG uses a variable-geometry design that adjusts internal vane angles to optimize boost across a wide range of engine speeds, which is a big part of how the 6.7L Cummins delivers strong low-end torque alongside solid highway power. When the turbo's actuator or internal vanes wear or stick, the engine can lose that finely tuned boost control, leading to power loss, rough idle, or fault codes that point toward the turbo's variable-geometry system specifically.

Key Features

• Cross-referenced to OE number 3787604 and numerous related Holset interchange numbers
• Variable-geometry design (HE300VG) matched to the Cummins ISB platform
• Quality construction built to meet or exceed OEM standards
• Backed by a manufacturer warranty and tested before shipment for reliable performance

Specifications

• Type: Variable-geometry turbocharger
• Turbo model: HE300VG (H300VG, HE300 family)
• Primary OE number: 3787604
• Additional interchange numbers: 3787605, 5326054, 3775426, 3779988, 3781632, 3784573, 3791531, 3794755, 3798534, 3798575, 4309355, 4352344, 5326057, 5327046
• Engine platform: Cummins ISB 6.7L
• Condition: New

Compatibility

Built for the Dodge Ram equipped with the Cummins ISB 6.7L diesel engine from 2013 to 2018. The HE300VG turbo family is also used more broadly across other Cummins B, C, and L Series engines in commercial and chassis-cab applications, so if you're shopping for a non-Ram Cummins application, confirming the OE number above against your original turbo or reaching out with your engine's serial number is the best way to guarantee a correct match before ordering.

Signs Your Turbo Is Failing

A noticeable drop in power or acceleration, rough or unstable idle, a whining or grinding noise from the turbo, visible exhaust smoke, or trouble codes referencing boost pressure or variable-geometry actuator position are all common signs of a failing HE300VG. Because the variable-geometry actuator can stick or wear independently of the turbo's core bearings, some failures show up first as erratic boost behavior rather than a complete loss of power.

Why Replacing a Failing Turbo Promptly Matters

A turbocharger that's failing internally can send metal debris downstream into the engine's intake system, risking damage well beyond the turbo itself if the problem isn't caught early. Replacing a turbo once you notice power loss or boost-related fault codes helps protect the rest of your 6.7L Cummins from that kind of secondary damage and restores the responsive power delivery the engine was designed around.

Installation Notes

Installing this turbocharger means removing the surrounding components for access, disconnecting the oil, coolant, and actuator wiring along with the intake and exhaust connections, unbolting the old turbo, and installing the new unit with fresh gaskets before reconnecting everything. Because a variable-geometry turbo relies on its actuator being calibrated correctly, having the actuator's position checked or relearned with a scan tool after installation helps ensure smooth boost control from the first drive. Priming the oil feed line before startup and letting the engine idle briefly afterward protects the new turbo's bearings on their first spin.

Ordering Information

This turbocharger is in stock and ships ready to install. Our Shipping Information page covers current timelines, and our Warranty and Returns pages explain what to do if anything isn't right on arrival. Not sure this matches your specific Ram model and year? Our Request a Part page is the fastest way to confirm before you order.

Related Parts

This turbocharger is listed in our Dodge collection, along with our Turbochargers & Performance and Diesel Parts collections, where you'll find other components for Cummins-powered Ram trucks.