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Diesel Turbocharger Rebuild

Holset VGT Rebuild Service

Complete in-house rebuild service for Holset variable geometry turbochargers covering HE351VE, HE300VG, HX35, HX40, HY35, HY40 and more. Stuck vane cleaning, unison ring service, bearing replacement, and in-house VSR balancing since 2008.

6.7HE351VE HE300VG 5.9HX35 HX40 HY35 ISXHE400VG HE500VG
Start Your Rebuild
6.7 CumminsHE351VE HE300VG
5.9 CumminsHX35 HX40 HY35 HY40
HD / CommercialHE400VG HE500VG
ServicesRebuild, Vane Clean, Actuator Cal
BalancingIn-House VSR
In Shop Since2008, 17+ years
Variable Geometry

How a VGT Actually Works

A variable geometry turbocharger replaces the fixed wastegate with a ring of movable vanes inside the turbine housing. An electronic actuator controls the vane position in real time, adjusting how exhaust gas hits the turbine wheel based on engine load and RPM. At low RPM the vanes close down, accelerating exhaust gas to spool the turbo quickly. At high RPM they open up to allow maximum flow. On the 6.7 Cummins this system also powers the exhaust brake by closing the vanes completely to build back pressure and slow the truck.

The same mechanism that makes the VGT so effective is what makes it vulnerable. The vanes, unison ring, and actuator linkage operate in the exhaust stream, exposed to soot, heat, and carbon buildup every time the engine runs.

1

ECM sends command

Based on throttle, load, and RPM the engine computer tells the actuator what vane position is needed.

2

Actuator drives the unison ring

The electric motor drives a gear assembly that rotates the unison ring, which simultaneously moves all vanes to the commanded position.

3

Vanes control exhaust velocity

Closed vanes accelerate exhaust gas for fast spool and exhaust brake function. Open vanes allow maximum flow for high-RPM power.

4

Position sensor confirms

A built-in position sensor reports actual vane position back to the ECM. When actual position stops matching commanded position, fault codes are set and limp mode follows.

Actuator Service

Actuator Programming Included

Most turbo shops rebuild the CHRA and ship the turbo back without touching the actuator. We program and calibrate the VGT actuator to the turbo before it leaves our shop.

Using professional diagnostic equipment we zero, initialize, and calibrate each actuator through its full range of motion. This process also diagnoses the actuator's condition: a faulty actuator that would fail immediately after installation is identified here before it ever goes back on the truck. The data from calibration tells us whether the actuator is performing within spec or needs replacement.

A properly calibrated actuator gives the ECM accurate reference points for minimum and maximum travel. Without calibration, the ECM has no way to command the vanes to the correct position and fault codes return immediately after installation. The normal service life of a Holset VGT actuator in good operating conditions is approximately 10,000 hours. Actuators that have been fighting stuck vanes rarely reach that threshold. We assess actuator condition as part of every rebuild and quote replacement if the unit is not serviceable.

Why They Come In

Holset VGT Failure Modes

Nearly every high-mileage 6.7 Cummins will eventually develop VGT issues. The same is true across commercial diesel platforms. These are the failure modes we see in the shop and what is actually happening inside the turbo when they occur.

101

Stuck Vanes and Unison Ring

The most common Holset VGT failure by a wide margin. Soot and carbon from the EGR system accumulate on the vane assembly and unison ring over time. The buildup is progressive and often invisible until the vanes stop moving entirely. Symptoms include loss of exhaust brake, limp mode, fault codes P2262 and P003A, and sluggish throttle response. The unison ring and vanes require thorough cleaning and inspection. If the vanes have been stuck long enough for the actuator to force them, the vane tips or ring may be damaged beyond cleaning.

202

Actuator Failure from Mechanical Resistance

The actuator does not fail on its own in most cases. When the vanes or unison ring are stuck, the actuator motor fights against the resistance on every key cycle. The internal plastic gears strip, the motor overheats, or the electronics fail from sustained overload. Replacing only the actuator without addressing the stuck vanes and cleaning the assembly guarantees the next actuator fails the same way. The turbo must be inspected and serviced at the same time.

303

Oil Coking in the CHRA

Extended oil change intervals, hot shutdowns after hard pulls, and any engine oil consumption issue cause oil to bake into carbon deposits inside the bearing housing. Coked oil restricts the oil passages, starves the bearings on startup, and accelerates every other failure mode. Trucks that develop VGT issues at 60,000 miles almost always have significant coking in the CHRA when we tear them down. Trucks that go 200,000 miles without issues almost never do.

404

Bearing Wear and Shaft Play

Journal bearing wear from contaminated oil, oil starvation, or simply high mileage allows shaft movement that causes wheel-to-housing contact. On VGT turbos the turbine side is especially sensitive because the exhaust housing geometry is tightly toleranced around the turbine wheel. Even small amounts of shaft play produce audible noise and eventual turbine contact. This is always found during teardown and addressed at rebuild.

505

Vane Tip and Ring Damage

When vanes have been stuck for an extended period and the actuator has been fighting them, the tips of the vanes and the contact surfaces of the unison ring develop wear and damage. In severe cases the vane tips crack or break. Damaged vanes cannot be cleaned back to service and must be replaced. We inspect every vane individually at teardown and quote replacement before proceeding if needed.

606

EGR-Accelerated Carbon Buildup

The EGR system on 6.7 Cummins engines routes exhaust gas back into the intake, and a percentage of that soot finds its way to the turbo. Trucks with leaking or stuck EGR valves, high idle time, and infrequent highway driving accumulate carbon in the VGT vane assembly significantly faster than trucks driven hard on the highway. Using the exhaust brake regularly is the single most effective preventive measure, as it exercises the vanes and keeps the contact surfaces from cementing together.

Our Rebuild Process

Every Holset VGT Done Right

We have been rebuilding Holset turbos since 2008. Every unit gets the same thorough process regardless of model. Everything including VSR balancing is done in-house at our Dade City shop. Nothing leaves our facility. Every job is tracked in our repair management system from intake through shipment, and you receive status updates and a full record of what was done to your turbo.

1

Intake Inspection and Documentation

Full teardown on arrival. Vane assembly, unison ring, bearings, shaft, and housings all inspected and photographed. We identify the root cause before any parts are ordered.

2

Vane Assembly and Unison Ring Service

Each vane is removed individually, cleaned, and inspected for tip damage and wear. The unison ring is cleaned and inspected. Damaged vanes or a worn ring are quoted for replacement before proceeding.

3

Bearing Replacement

Journal bearings, thrust bearings, and thrust washers replaced with new components. CHRA cleaned of any oil coking and inspected for oil passage restriction.

4

Piston Ring and Seal Hardware

All compressor and turbine side piston rings replaced. Seal plates and o-rings inspected and replaced as needed.

5

In-House VSR Balancing

Rebuilt CHRA dynamically balanced in-house above OEM specification before final assembly. Done here, not sent out.

6

Final Assembly and Inspection

Vane assembly reinstalled and confirmed to move freely through full range of motion. Shaft play verified within tolerance. Turbo photographed and packaged for return shipment.

What's Included

Standard Rebuild Includes

Vane Assembly Cleaning and Inspection

Each vane removed, cleaned, and inspected individually. Unison ring cleaned and verified for free movement through full range of motion.

New Bearings

Journal bearings, thrust bearings, and thrust washers replaced. CHRA cleaned of coking and inspected for oil passage restriction before reassembly.

In-House VSR Balancing

Every rebuilt CHRA dynamically balanced in-house before final assembly. Not sent out.

Piston Rings and Seal Hardware

All compressor and turbine side piston rings replaced. Seal plates and o-rings inspected and replaced as needed.

Housing Inspection and Clean

Compressor and turbine housings cleaned and inspected for cracks, erosion, and contact marks.

Documented Build Record

Every job tracked in our repair management system from intake through shipment with photos at teardown and completion.

Actuator Programming and Calibration

We program and calibrate VGT actuators to the turbo using professional diagnostic equipment. The actuator is zeroed, initialized, and calibrated through its full range of motion before the turbo ships. Faulty actuators are diagnosed before installation, saving you the cost of putting a bad actuator on a freshly rebuilt turbo.

Models Covered

What We Rebuild

We rebuild Holset turbos from all major diesel platforms, on-road and off. Holset hardware also runs across the platforms covered on our Heavy Truck, Marine, and Agricultural references. If your model is not listed here, contact us with your model number or the part number from the CHRA nameplate and we will confirm what we can do. The full part number lookup is directly below this section.

ModelApplicationYearsEngineStatus
HE351VEDodge / Ram 2500 and 35002007.5-20126.7L CumminsFull Support
HE300VGDodge / Ram 2500 and 35002013-20246.7L CumminsFull Support
HX35Dodge / Ram 2500 and 35001994-20025.9L CumminsFull Support
HX40Dodge / Ram 2500 and 35001998-20025.9L CumminsFull Support
HY35Dodge / Ram 2500 and 35002003-20075.9L CumminsFull Support
HY40Dodge / Ram 35002003-20075.9L CumminsFull Support
HE400VGPeterbilt / Kenworth / FreightlinerVariousCummins ISX / X15Full Support
HE500VGPeterbilt / Kenworth / Freightliner / CommercialVariousCummins ISX / X15Full Support
HE531VEFreightliner / Western Star (Detroit Series 60)Late 14.0L trucksDetroit Series 60 14.0LFull Support
H1C / HX35 / HX40M MarineSportfish, trawler and workboat repowersVariousCummins 6BT / 6BTA 5.9, 6CTA 8.3 marineFull Support
HX25 / HX30 / HX35 AgCase IH Magnum / Steiger, ag and industrialVariousCummins B / C series ag powerFull Support
International / NavistarVarious Class 6-8VariousMaxxForce / DT466Full Support
Part Number Reference

Find Your Part Number

Search by part number, model, engine, or application. Holset uses multiple interchangeable part numbers for the same turbo across model years. If your number is not listed, contact us and we can identify your unit.

Showing all 167 part numbers
Part NumberModelEngineApplicationType
HE351VE Turbos
3771639HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
3771662HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
3786226HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
3786226HXHE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500Reman Turbo
3786775HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
3786775HHE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
3786775HXHE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500Reman Turbo
3791741HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
3791741HXHE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500Reman Turbo
3791778HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
3791781HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
3791866HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
2837248HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
2837249HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
2837250HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
2839140HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
2839150HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
2881699HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
2881708HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
2882075HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
2882075RXHE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500Reman Turbo
4044383HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
4044390HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
4309453HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
4352324HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
4352324RXHE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500Reman Turbo
4955399HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
4955399HHE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
4955399HXHE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500Reman Turbo
4955401HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
4955401RXHE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500Reman Turbo
5325886HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
5325950HE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500OEM Turbo
5325950HXHE351VECummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500Reman Turbo
HE351VE Actuators
4352198HE351VE ActuatorCummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500VGT Actuator
4352199HE351VE ActuatorCummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500VGT Actuator
4352475HE351VE ActuatorCummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500VGT Actuator
4352476HE351VE ActuatorCummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500VGT Actuator
4352479HE351VE ActuatorCummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500VGT Actuator
4352483HE351VE ActuatorCummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500VGT Actuator
5308255HE351VE ActuatorCummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500VGT Actuator
5326410HE351VE ActuatorCummins ISB 6.7L2007.5-2012 Dodge Ram 2500/3500VGT Actuator
HE300VG 2013-2018 Turbos
3768087HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3768088HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3770973HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3770974HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3770975HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3779989HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3781632HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3787604HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3787605HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3790480HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3790481HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3790482HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3790483HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3794757HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3798537HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3798538HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3798575HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3798579HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3799833HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
3799840HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
4309355HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
5326047HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
5326054HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
5327046HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
5456364HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
5456365HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
5498271HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
5498271RXHE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500Reman Turbo
5501329HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
5554226HE300VGCummins ISB 6.7L2013-2018 Dodge Ram 2500/3500OEM Turbo
HE300VG 2019-2024 Turbos
3796809HE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500OEM Turbo
3796810HE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500OEM Turbo
5326557HE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500OEM Turbo
5326559HE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500OEM Turbo
5326560HE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500OEM Turbo
5355675HE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500OEM Turbo
5355676HE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500OEM Turbo
5355677HE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500OEM Turbo
5456363HE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500OEM Turbo
5554227HE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500OEM Turbo
5554227HXHE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500Reman Turbo
5640906HE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500OEM Turbo
68444771AAHE300VGCummins ISB 6.7L2019-2024 Dodge Ram 2500/3500Mopar OEM
HE300VG Actuators
3775426HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3775427HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3775439HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3779986HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3779987HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3779989HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3781633HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3781754HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3781755HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3784573HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3784574HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3787607HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3787608HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3794756HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
3794758HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
5326054HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
5326057HE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500VGT Actuator
68210648AAHE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500Mopar Actuator
68212738AAHE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500Mopar Actuator
68245792AAHE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500Mopar Actuator
68253983AAHE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500Mopar Actuator
68307025AAHE300VG ActuatorCummins ISB 6.7L2013-2024 Dodge Ram 2500/3500Mopar Actuator
HX35 / HX35W Turbos
3537039HX35Cummins 5.9L 6BT1994-1998 Dodge Ram 2500/3500OEM Turbo
3537726HX35Cummins 5.9L 6BT1994-1998 Dodge Ram 2500/3500OEM Turbo
3538302HX35Cummins 5.9L 6BT1994-1998 Dodge Ram 2500/3500OEM Turbo
3538881HX35WCummins 5.9L 6BT1998-2002 Dodge Ram 2500/3500OEM Turbo
3592766HX35WCummins 5.9L 6BT1998-2002 Dodge Ram 2500/3500OEM Turbo
4050036HX35WCummins 5.9L 6BT1998-2002 Dodge Ram 2500/3500OEM Turbo
HX40 / HX40W Turbos
3537232HX40Cummins 5.9L 6BTDodge Ram / CommercialOEM Turbo
3590044HX40WCummins 5.9L 6BTDodge Ram / CommercialOEM Turbo
HY35W Turbos
3599810HY35WCummins ISBe 5.9L2003-2007 Dodge Ram 2500/3500OEM Turbo
3599811HY35WCummins ISBe 5.9L2003-2007 Dodge Ram 2500/3500OEM Turbo
4089392HY35WCummins ISBe 5.9L2003-2007 Dodge Ram 2500/3500OEM Turbo
4089668HY35WCummins ISBe 5.9L2003-2007 Dodge Ram 2500/3500OEM Turbo
HE351CW Turbos
4036835HE351CWCummins ISBe 5.9L2003-2007 Dodge Ram 2500/3500OEM Turbo
4037001HE351CWCummins ISBe 5.9L2003-2007 Dodge Ram 2500/3500OEM Turbo
4043600HE351CWCummins ISBe 5.9L2003-2007 Dodge Ram 2500/3500OEM Turbo
4089673HE351CWCummins ISBe 5.9L2003-2007 Dodge Ram 2500/3500OEM Turbo
4089797HE351CWCummins ISBe 5.9L2003-2007 Dodge Ram 2500/3500OEM Turbo
HE400VG Turbos
2882111HE400VGCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerOEM Turbo
2840007HE400VGCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerOEM Turbo
2841220HE400VGCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerOEM Turbo
5354711HE400VGCummins ISX12 11.9LPeterbilt / Kenworth / FreightlinerOEM Turbo
5354711HXHE400VGCummins ISX12 11.9LPeterbilt / Kenworth / FreightlinerReman Turbo
5358003HE400VGCummins ISX / X15Peterbilt / Kenworth / FreightlinerOEM Turbo
5358483HE400VGCummins ISX / X15Peterbilt / Kenworth / FreightlinerOEM Turbo
5358484HE400VGCummins ISX / X15Peterbilt / Kenworth / FreightlinerOEM Turbo
5454982HE400VGCummins ISX / X15Peterbilt / Kenworth / FreightlinerOEM Turbo
5454983HE400VGCummins ISX / X15Peterbilt / Kenworth / FreightlinerOEM Turbo
5455955HE400VGCummins ISX / X15Peterbilt / Kenworth / FreightlinerOEM Turbo
5458937HE400VGCummins ISX / X15 CM2350Peterbilt / Kenworth / FreightlinerOEM Turbo
5458937HHE400VGCummins ISX / X15 CM2350Peterbilt / Kenworth / FreightlinerOEM Turbo
5458937HXHE400VGCummins ISX / X15 CM2350Peterbilt / Kenworth / FreightlinerReman Turbo
5459711RXHE400VGCummins ISX / X15Peterbilt / Kenworth / FreightlinerReman Turbo
5501254HE400VGCummins ISX EPA10Peterbilt / Kenworth / FreightlinerOEM Turbo
5501254HXHE400VGCummins ISX EPA10Peterbilt / Kenworth / FreightlinerReman Turbo
HE400VG Actuators
3791991HE400VG ActuatorCummins ISX / ISX12Peterbilt / Kenworth / FreightlinerVGT Actuator
3791993HE400VG ActuatorCummins ISX / ISX12Peterbilt / Kenworth / FreightlinerVGT Actuator
3789676HE400VG ActuatorCummins ISX / ISX12Peterbilt / Kenworth / FreightlinerVGT Actuator
3789677HE400VG ActuatorCummins ISX / ISX12Peterbilt / Kenworth / FreightlinerVGT Actuator
3780558HE400VG ActuatorCummins ISX / ISX12Peterbilt / Kenworth / FreightlinerVGT Actuator
HE500VG / HE451VE Turbos
4309079HE500VGCummins ISX15Peterbilt / Kenworth / FreightlinerOEM Turbo
4309079RXHE500VGCummins ISX15Peterbilt / Kenworth / FreightlinerReman Turbo
5354721HE451VECummins ISX / QSXPeterbilt / Kenworth / FreightlinerOEM Turbo
5354721HHE451VECummins ISX / QSXPeterbilt / Kenworth / FreightlinerOEM Turbo
5354725HXHE451VECummins ISX15 14.9LPeterbilt / Kenworth / FreightlinerReman Turbo
5496313HE500VGCummins ISXPeterbilt / Kenworth / FreightlinerOEM Turbo
5496313HXHE500VGCummins ISXPeterbilt / Kenworth / FreightlinerReman Turbo
HE500VG / HE451VE Actuators
4032760HE500VG / HE451VE ActuatorCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerVGT Actuator
4032760RXHE500VG / HE451VE ActuatorCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerReman Actuator
4034289HE500VG / HE451VE ActuatorCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerVGT Actuator
4034289RXHE500VG / HE451VE ActuatorCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerReman Actuator
4034208HE500VG / HE451VE ActuatorCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerVGT Actuator
4034210HE500VG / HE451VE ActuatorCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerVGT Actuator
4034116HE500VG / HE451VE ActuatorCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerVGT Actuator
4034403HE500VG / HE451VE ActuatorCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerVGT Actuator
4032066HE500VG / HE451VE ActuatorCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerVGT Actuator
4032673HE500VG / HE451VE ActuatorCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerVGT Actuator
4045108HE500VG / HE451VE ActuatorCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerVGT Actuator
4045991HE500VG / HE451VE ActuatorCummins ISX / ISX15Peterbilt / Kenworth / FreightlinerVGT Actuator
HE500VG Actuators
2837201HE500VG ActuatorCummins ISX15Peterbilt / Kenworth / FreightlinerVGT Actuator
2835940HE500VG ActuatorCummins ISX15Peterbilt / Kenworth / FreightlinerVGT Actuator

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Common Questions

Frequently Asked Questions

My actuator just failed. Do I need to rebuild the whole turbo?
In most cases the actuator did not fail on its own. When the vanes and unison ring are stuck from carbon buildup, the actuator fights against the resistance on every key cycle until it burns out or strips its gears. Replacing the actuator without servicing the vane assembly means the new actuator faces the same resistance and fails the same way, often within months. We inspect every unit that comes in and confirm whether the vanes move freely before recommending a path forward. If the vanes are stuck, the turbo needs to come out and the vane assembly needs to be serviced at the same time.
Can you just clean the vanes without a full rebuild?
Vane cleaning is part of our inspection and rebuild process. We do not offer cleaning as a standalone service separate from a full inspection. The reason is simple: if the vanes are stuck enough to cause a problem, the bearing assembly and CHRA almost always show wear that needs to be addressed at the same time. A vane cleaning on a turbo with worn bearings is a short-term fix. We inspect every unit completely and give you an honest assessment of what it actually needs.
Do I need to calibrate the actuator after a rebuild?
Yes, and we handle it for you. Every turbo that leaves Boost Lab with a VGT actuator has been programmed and calibrated before it ships. We zero, initialize, and calibrate the actuator through its full range of motion using professional diagnostic equipment, and the data from that process confirms the actuator is performing within spec before it goes back on your truck. You do not need to source a calibration tool or find a dealer to finish the job after it arrives. The turbo ships ready to install.
How do I ship my turbo?
Submit the rebuild form at repair.theboostlab.com first. Drain any residual oil from the inlet and outlet ports before packaging. Plug the ports to prevent contamination in transit. Double-box the unit with foam or bubble wrap on all sides. Ship via UPS or FedEx to 37833 Pineapple Ave Unit A, Dade City, FL 33523. We will send a receiving confirmation when your turbo arrives.
What is the turnaround time?
Standard turnaround is 7 to 14 business days from the day your turbo arrives. All work including VSR balancing is done in-house. If vane replacement or additional parts are needed we contact you before proceeding with an updated timeline and quote.
How do I prevent this from happening again?
Use the exhaust brake regularly during normal driving. The exhaust brake closes the VGT vanes fully and the repeated cycling keeps carbon from cementing them in place. Maintain oil change intervals, allow the engine to cool down at idle after hard pulls before shutdown, and address any EGR or oil consumption issues promptly. Cummins includes a turbo actuator cleaning interval in the 6.7 owner's manual that most owners are unaware of. Following it extends VGT service life significantly.
Do you work with fleets and diesel shops?
Yes. We work with diesel repair shops, fleet operators, and dealers nationwide. If you are managing multiple Holset rebuilds regularly, contact us about wholesale pricing and shop accounts. We accommodate priority turnaround for established trade accounts.

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Start your rebuild request in our repair system. Every job is fully documented from intake through return shipment. You will always know exactly where your turbo is in the process.

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37833 Pineapple Ave Unit A • Dade City, FL 33523 • sales@theboostlab.com