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 sliding-vane 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	Electric (rotary, calibrated to ECM)
Application	2007.5–2012 Dodge/Ram 2500, 3500, 4500, 5500 6.7L Cummins
Compressor wheel	~60mm inducer, cast aluminum
Turbine wheel	~65mm, 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The HE351VE was superseded by the HE300VG in 2013 when Cummins moved to the 6.7L for the tighter emissions platform. 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 stocks pneumatic and electronic actuators across the Holset, Garrett, and Mitsubishi platforms so you can source the right unit for your specific application. A few actuators worth knowing for VGT and wastegated diesel setups:

• Garrett Pneumatic Actuator 757979-5102, a robust unit for Garrett VNT applications, available from PT Turbo for $240.94 view the Garrett 757979-5102 here.
• Garrett Pneumatic Actuator 445963-0040, a heavier-duty option at $465.52 view the Garrett 445963-0040 here.
• Mitsubishi TD03 Pneumatic Actuator 49S3118761, priced at $104.33 view the Mitsubishi TD03 actuator here.
• Mitsubishi Pneumatic Actuator 4918918935, the budget-friendly choice at $83.99 view the Mitsubishi 4918918935 here.

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 (4500/5500): 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 OEM Holset HE351VE	$1,600–$2,400	Warranty-critical fleets, no core available
Remanufactured HE351VE	$900–$1,400	Best value for daily drivers and work trucks
Rebuild your existing core	$650–$1,100	Good core, want your original casting back
Actuator only	$85–$470	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. If you’ve got a good core and want it

Cross-Reference & Superseded Part Numbers

The turbochargers covered in this article match or supersede the following OEM and manufacturer part numbers. If you are searching by part number, these are the units stocked by PT Turbo for this application:

172-784-0470  •  2881708RX-RMN  •  3591890  •  3592773  •  3598273  •  3598483  •  3771658-RMN  •  3786220H  •  3786220HX  •  3786222H  •  3786224H  •  3786226H  •  3786226HX  •  3786227H  •  3786227HX  •  3786228HX  •  3786775H  •  3786775HX  •  3786778H  •  3786778HX  •  3791740H  •  3791740HX  •  3791741H  •  3791741HX  •  3791742H  •  3791742HX  •  3791743H  •  3791743HX  •  3791744HX  •  3791745H  •  3791745HX  •  3791863H  •  3791863HX  •  3791864HX  •  3791865H  •  3791865HX  •  3791866H  •  3791866HX  •  3796671H  •  3796671HX  •  3796673H  •  3796673HX  •  3796674HX  •  3796676H  •  3796676HX  •  3796682H  •  3796682HX  •  3798361HX  •  3798366HX  •  3798369HX  •  3798378H  •  3798378HX  •  3798382H  •  3798382HX  •  3798383H  •  3798385H  •  3798385HX  •  4030045  •  4030227H  •  4030269  •  4030273  •  4030715  •  4030720  •  4030736  •  4030747  •  4030757  •  4030763  •  4030767  •  4030780  •  4030782  •  4030784  •  4030786  •  4030793  •  4030831  •  4030835  •  4030845  •  4030847H  •  4030858  •  4030861  •  4030870  •  4030877H  •  4030892  •  4030894H  •  4030914  •  4030915  •  4030916  •  4030918H  •  4030923  •  4030926H  •  4030930  •  4030935  •  4030945  •  4030963  •  4030967  •  4031254H  •  4031315  •  4031327  •  4031381  •  4031435  •  4031461  •  4031488  •  4032006  •  4032029  •  4032046  •  4032219  •  4032238H  •  4032259  •  4032262  •  4032265  •  4032277  •  4032284  •  4032292  •  4032294H  •  4032304H  •  4032305  •  4032306  •  4032553H  •  4032664  •  4032706  •  4032721  •  4032739  •  4032769  •  4032869H  •  4032975  •  4034013  •  4034055H  •  4034144H  •  4034145H  •  4034150H  •  4034256H  •  4034294H  •  4034320H  •  4034322H  •  4034356H  •  4034384H  •  4034387H  •  4034464H  •  4034499  •  4035465  •  4036553  •  4037504  •  4038545  •  4038889  •  4040391  •  4042573  •  4043168  •  4043564  •  4044633  •  4044721  •  4044722  •  4044830  •  4047073H  •  4309355RX-RMN  •  4352330H  •  5325950-RMN  •  5325950H  •  5325950HX  •  5326058-RMN  •  5328144HX  •  5503312H  •  6324587HX  •  6454763H

Can’t find your number above? Contact PT Turbo — our team has been matching part numbers since 1978.

Further reading: Learn more about turbocharger technology.