6.7L Cummins Turbo Rebuild Service

PT Turbo rebuilds and remanufactures 6.7L Cummins turbochargers in-house at our San Bernardino, CA shop. Every unit goes through a full teardown, OEM-spec or better parts replacement, CIMAT VSR balancing, and final quality inspection before it ships back — backed by a 12-month unlimited mileage warranty and nationwide mail-in service. Commonly found on Dodge Ram 2500/3500, 2007.5-present.

Shop Cummins turbochargers in stock at PT Turbo →  |  Cummins Turbo Rebuild Service →

Common 6.7L Cummins Part Numbers

The following part and SKU numbers from PT Turbo’s catalog match or cross-reference to the 6.7L Cummins:

Don’t see your number? Contact PT Turbo — we’ve been matching turbo part numbers since 1978.

Trouble Codes Often Seen on Dodge Ram 2500/3500, 2007.5-present Equipped with the 6.7L Cummins

These are generic diagnostic trouble codes commonly associated with turbo boost control issues on this application. They’re triggered by the vehicle’s ECU, not the turbo itself, so confirm with a scan tool before assuming the turbocharger is at fault.

• P0299 — Turbocharger/Supercharger Boost Pressure – Low (underboost)
• P0234 — Turbocharger/Supercharger Overboost Condition
• P003A — Turbocharger Boost Control Position Sensor Circuit Low
• P2563 — Turbocharger Boost Control Position Sensor

Also Known As

Buyers searching for this turbo often use one of several names depending on the year and the Holset designation.

• 6.7L Cummins VGT turbo
• Holset HE351VE (2007.5-2012)
• Holset HE300VG (2013+)
• Dodge Ram 2500/3500 6.7 Cummins turbo
• Cummins variable geometry turbo
• 6.7 Cummins exhaust brake turbo

Vehicles We Commonly See With the 6.7L Cummins

This turbo lives almost entirely under the hood of the Ram heavy-duty trucks, but the year split matters because the actuator and turbine setup changed.

Dodge Ram 2500 (2007.5-Present)

• 2007.5-2012 Ram 2500 with the HE351VE
• 2013-2018 Ram 2500 with the HE300VG
• 2019-present Ram 2500 with the updated HE300VG

Dodge Ram 3500 (2007.5-Present)

• 2007.5-2012 Ram 3500 single rear wheel and dually
• 2013-2018 Ram 3500 cab and chassis units
• 2019-present Ram 3500 high-output and towing-package trucks

Fleet and Work Truck Setups

• Service body and utility trucks built on the 3500 chassis
• Heavy tow rigs and 5th-wheel haulers that run the exhaust brake daily
• Flatbeds and dump beds that idle and load-cycle constantly

Common 6.7L Cummins Failure Symptoms

• Truck dropping into limp mode under load with reduced power
• Overboost or underboost trouble codes such as P0299 or P003A
• Exhaust brake feeling weak or not engaging at all
• Surging or hunting boost that won’t hold a steady reading
• Whistling or whining from the turbo that wasn’t there before
• Shaft play you can feel by hand at the compressor wheel
• Oil in the charge pipe or intake from failing seals
• Black smoke and sluggish throttle response off the line

Real 6.7L Cummins Failures We See in Our Shop

• By far the most common thing we pull apart on these is soot-locked VGT vanes. Carbon packs into the unison ring and vane slots until the geometry can’t move, and the truck throws a limp-mode code that no amount of code clearing will fix until the cartridge is cleaned and rebuilt.
• On the 6.7L Cummins units we rebuild, the electronic actuator is a frequent failure point. The internal gears and motor wear out or the calibration drifts, and the actuator stops driving the vanes through their full sweep.
• We see vane position sensor drift constantly. The sensor reads a position the vanes aren’t actually at, so the ECM commands too much or too little boost and you get overboost and underboost codes that come and go.
• Exhaust brake complaints almost always trace back to the VGT itself on these. Because the brake function depends on closing the vanes, any soot binding or actuator fault kills the brake right along with the boost control.
• On higher-mileage trucks we find shaft bearing wear and thrust play, usually from years of hard towing and extended oil intervals. By the time it shows up as a whistle there’s already measurable end play and the seals are weeping oil into the intake.
• We also catch heat-cracked turbine housings and warped vane components on trucks that get shut down hot after pulling a heavy load, which accelerates the carbon binding problem on the next start.

Preventing Future 6.7L Cummins Failures

Most of what kills these turbos is soot and heat, and both are manageable with a few habits.

• Stick to a real oil change interval on quality diesel oil, since dirty oil accelerates bearing and shaft wear
• Let the truck idle a couple minutes after hard towing so the turbo isn’t shut down glowing hot
• Avoid a steady diet of short low-load trips, which let soot build up on the VGT vanes
• Get the truck up to operating temperature and let it work occasionally to help burn off carbon
• Check the charge pipes and clamps for boost leaks that make the turbo work harder than it should
• Keep a clean air filter and inspect for any debris that could reach the compressor wheel
• Maintain the cooling system so the turbo isn’t soaking in excess underhood heat

Common 6.7L Cummins Upgrade Paths

Plenty of customers rebuilding these ask what they can do while it’s apart. Common requests include upgraded compressor wheels for more airflow, billet compressor or turbine wheels for strength under higher boost, and improved thrust bearing setups for trucks that see heavy towing or added power. Some owners going after reliability rather than power just want the rotating assembly balanced tight and the VGT components cleaned and freed up so the soot-binding problem doesn’t come back. Anything beyond stock spec changes how the turbo spools and behaves, so the right choice depends on whether the goal is towing reliability, daily-driver longevity, or added power.

Frequently Asked Questions

How to Identify Your Cummins Turbo

The identification tag is typically located on the compressor housing, bearing housing, or center section of the turbocharger. It usually lists the model number, assembly number, and serial number. If you’re not sure which Cummins model you have, send PT Turbo a photo of the tag and we’ll help identify it before you ship anything.

PT Turbo Warranty

• 12-month, unlimited mileage warranty against defects in parts and workmanship
• Final quality inspection on every rebuild: leak test, visual inspection, actuator or wastegate function check
• In-house CIMAT VSR balancing with a balance report included
• Nationwide mail-in service — you don’t need to be local

What the 6.7L Cummins Rebuild May Include

• Complete teardown of all major components
• Ultrasonic or parts cleaning to remove carbon, oil residue, and contamination
• Journal bearing, thrust bearing, and seal replacement
• O-rings and hardware replacement
• Shaft and wheel inspection, with compressor or turbine wheel replacement if needed
• VGT vane mechanism and actuator cleaning, inspection, or repair
• CIMAT VSR balancing
• Final inspection

Why Customers Choose PT Turbo

• Rebuilding turbochargers, including Cummins, since 1978
• In-house CIMAT VSR balancing on every unit, not outsourced
• Full housing sandblasting and OEM-spec or better parts replacement
• Inspect first, quote before work begins — no surprise charges
• Nationwide mail-in service from our San Bernardino, CA shop

PT Turbo Inspection Process

Every turbocharger goes through the same evaluation before any work begins:

1. Initial evaluationcompressor wheel, turbine wheel, shaft, bearing housing, VGT assembly (if equipped), actuator, and seal surfaces are checked first.
2. Complete disassemblythe turbocharger is fully torn down and every major component is inspected individually.
3. Cleaningcomponents are cleaned to remove carbon, oil residue, rust, and contamination.
4. Measurementcritical tolerances are measured against OEM specification.
5. Reassemblyrebuilt using new wear components matched to your specific model.
6. CIMAT VSR balancingthe rotating assembly is balanced in-house, with a balance report included.
7. Final inspectionleak test, visual inspection, and actuator or wastegate function check before shipment.

No work begins without your approval. You receive a quote after inspection, not before.

Pricing

Most rebuilds require inspection before final pricing. Standard rebuild pricing depends on the turbo model, parts availability, wheel condition, shaft condition, housing damage, and whether upgrades are requested. PT Turbo inspects every turbo and sends a quote before any work begins — no surprise charges.

Turbo Models That Fit the 6.7L Cummins

• Holset HE351VE Turbo Rebuild Service

Related Turbo Resources