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Reman Holset HE300VG/HE351VE Turbocharger – Cummins ISB 6.7L | Part# 3771658RX – PT Turbo

Holset HE351VE Turbocharger: Specs, Fitment & Complete Replacement Guide

If you run a 6.7L Cummins in a Ram 2500 or 3500, the Holset HE351VE is the variable geometry turbocharger bolted to your exhaust manifold, and when it fails it takes your power, your fuel economy, and sometimes your whole workday with it. This is the turbo Cummins used from 2007.5 through 2012, and it’s still one of the most common units we rebuild here at PT Turbo. It’s a stout piece of hardware, but the electric actuator and the sliding nozzle ring have well-documented failure points that every diesel tech should know cold. This guide covers the real specs, correct fitment, failure symptoms, and exactly how to approach replacement without wasting money.

Holset HE351VE Specifications

The HE351VE is a variable geometry turbocharger (VGT) built by Holset (Cummins Turbo Technologies). “VE” stands for Variable geometry, Electric actuator, which is the key distinction from the older air-operated and wastegated Holsets. Instead of a wastegate, it uses a sliding nozzle ring that changes the effective exhaust housing A/R on the fly, giving you fast spool at low RPM and controlled backpressure up top. This same architecture also drives the factory exhaust brake, which is why a stuck nozzle ring kills your engine braking too.

Specification Detail
Type Variable Geometry Turbo (sliding nozzle ring)
Actuator Electronic (calibrated to the turbo with a service tool)
Application 2007.5–2012 Dodge/Ram 2500, 3500, 4500, 5500 6.7L Cummins
Compressor wheel ~60mm inducer, cast aluminum
Turbine wheel ~70mm inducer / 60mm exducer, variable nozzle
Max supported power (stock frame) Roughly 450–500 rwhp before it runs out of breath
Integrated exhaust brake Yes, via nozzle ring closure
Oil feed / drain Pressure-fed journal bearing, gravity drain to pan

The HE351VE was superseded by the HE300VG in 2013 when the 6.7L was updated for tighter emissions. If you’re cross-shopping the two or trying to figure out which one your truck came with, our full HE351VE vs HE300VG comparison breaks down the differences and interchange details.

Common HE351VE Failure Symptoms

The HE351VE rarely dies from a spun bearing. The overwhelming majority of failures we see trace back to the variable geometry mechanism and the electric actuator, both of which live in a brutal thermal environment right off the manifold. Soot, condensation, and heat cycling seize the nozzle ring, and the actuator motor and calibration board wear out from constant duty. Here’s how to triage by severity.

Symptom Likely Cause Severity
P003A, P2262, P0045 codes Actuator failure or nozzle ring not reaching commanded position Moderate
No exhaust brake, weak engine braking Sticking nozzle ring from soot buildup Moderate
Sluggish spool, low boost, black smoke Nozzle ring stuck open or carbon-fouled vanes Serious
Overboost / limp mode Nozzle ring stuck closed, actuator miscalibration Serious
Oil in intake, blue smoke, whine Worn journal bearings, failed seals Critical, rebuild or replace
Metallic grinding, shaft play Bearing failure, wheel contact Critical, do not drive

A key diagnostic tip: before you condemn the whole turbo, pull the actuator and manually check the nozzle ring for free movement. A huge percentage of “bad turbos” are actually just a sooted-up sliding ring or a dead actuator. If the cartridge and wheels are healthy, you can often clean the VGT mechanism and replace the actuator for a fraction of the cost of a full unit.

Actuator Replacement: The Most Common Fix

The electric actuator is the number one wear item on these turbos, and it’s the first thing to check when you throw an actuator or overboost/underboost code. Actuators fail from heat soak, internal gear wear, and water intrusion into the calibration electronics. The good news is that replacing the actuator is far cheaper than replacing the whole turbocharger, and it restores full boost control and exhaust brake function when the mechanical VGT side is still good.

PT Turbo lists Holset electronic actuators so you can source the right unit for your specific application.

One critical warning on the HE351VE specifically: the factory electric actuator is calibrated to that individual turbo. A replacement actuator must be recalibrated to the turbo and, in most cases, relearned by the ECM. Do not just bolt on a used actuator and expect it to work. If you’re unsure which actuator or calibration your truck needs, contact PT Turbo with your VIN and we’ll match it correctly.

HE351VE Fitment and Interchange

The HE351VE is application-specific to the 2007.5–2012 6.7L Cummins in Ram trucks. It is not a direct bolt-in for the earlier 5.9L HE351CW or the later HE300VG without addressing wiring, calibration, and in some cases downpipe and oil line differences. Key fitment notes:

  • 2007.5–2012 cab and chassis (3500, and 4500/5500 from 2008): Uses the HE351VE but with different tuning than the pickup application. Verify the part number.
  • Exhaust brake wiring: The VE actuator carries the exhaust brake logic. Any replacement must support the factory harness connector.
  • Downpipe / V-band clamp: Confirm the turbine outlet flange matches your existing downpipe before ordering.
  • Oil feed line: Reuse a clean, unrestricted feed line. A partially blocked feed line is a common cause of repeat failures.

If you’re weighing a factory-style replacement against an upgrade, the difference between the HE351VE and the newer HE300VG matters for both fitment and performance. We cover the full Ram turbo lineup, part numbers, and replacement costs in our Ram 2500/3500 6.7L Cummins turbocharger guide. Owners chasing more power over stock also often look at aftermarket options, and our BorgWarner turbocharger fitment guide is a good starting point for drop-in upgrades.

New vs Remanufactured: What Should You Buy?

When the cartridge or wheels are gone, you’re choosing between a brand-new Holset, a quality remanufactured unit, or a rebuild of your existing core. For a truck that’s a daily driver or a working rig, a properly remanufactured HE351VE delivers new-unit reliability at a real cost savings, provided it’s done right with a new nozzle ring, bearings, seals, and a balanced and calibrated actuator.

Option Typical Cost Best For
New Holset HE351VE $2,936 to $5,167 (11 listings) at PT Turbo Warranty-critical fleets, no core available
Remanufactured HE351VE $2,449 to $5,931 (13 listings) at PT Turbo Best value for daily drivers and work trucks
Rebuild your existing core $825 at PT Turbo for the HE351VE (price list) Good core, want your original casting back
Actuator only see actuator prices Healthy turbo, failed actuator

PT Turbo has been in the turbocharger business for over 45 years, and we stock both new and remanufactured turbochargers built to OEM tolerances.

The deciding factor usually comes down to the condition of your core and how hard the truck works. If the center cartridge still spins clean with no shaft play and the wheels are undamaged, a rebuild of your original casting makes the most sense and keeps your known-good housing in service. Once the bearings, seals, or nozzle ring are compromised, step up to a remanufactured unit rather than throwing parts at a tired core.

Whatever route you take, insist that the nozzle ring moves freely and the actuator is calibrated to that specific turbo before it goes back on the manifold. A unit that isn’t properly relearned by the ECM will log the same codes you just chased out, and a sticking ring will put you right back under the truck. Get those two details right and an HE351VE will run reliably for years of hard duty.

Price ranges in this article are general estimates to help with budgeting, not PT Turbo quotes. Our current prices are on each product listing, and our rebuild prices are on the turbo rebuild price list.

Frequently Asked Questions

What engine uses the Holset HE351VE turbocharger?

The Holset HE351VE is the variable geometry turbocharger fitted to the 6.7L Cummins engine in Ram 2500 and 3500 trucks from 2007.5 through 2012.

What are the symptoms of a failing HE351VE turbo?

A failing HE351VE typically causes loss of power, reduced fuel economy, and sometimes complete failure that can leave your truck out of commission.

Can the Holset HE351VE turbocharger be rebuilt?

Yes, the HE351VE is a stout, commonly rebuilt unit, and rebuilding it can restore lost power and fuel economy at a lower cost than replacement.

Further reading: Learn more about turbocharger technology.

PT Turbo rebuilds the HE351VE, including VGT cartridge and actuator work. See our turbo rebuild service.

Shopping by part number?

Every part number we stock for the Holset HE351VE is on one page, with live prices and stock: Holset HE351VE turbos and parts.

About the author

Niles Nimmo has worked on turbochargers for 19 years. PT Turbo has rebuilt and supplied turbochargers in San Bernardino, California since 1978. More about Niles and all of his guides.

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