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Cummins QSB 6.7L Turbo Assembly 2011-2016: OEM 4352379RX

CUMMINS QSB 6.7L TURBO ASSEMBLY 2011-2016: OEM 4352379RX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$3,850.00

CORE CHARGE:

$1,200.00
iCORE DISCLAIMER: The CORE charge is a 30 day hold and will not be processed as long as the CORE is returned within 30 days. If you do not have a CORE or fail to return the CORE within 30 days, the CORE charge hold amount will be processed at that time.

AVAILABILITY IN STOCK
OEM NUMBER4352379RX
PART TYPETurbo Assembly
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEQSB 6.7L
YEAR2011-2016
PART NUMBER4352379RM-WA
ADDITIONAL NOTES24 Volt actuator

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Turbo Assembly, Tamerx part number 4352379RM-WA ( OEM Part Number 4352379RX ). All parts are proudly remanufactured in the U.S.A. to the highest of OEM standards, and improvements are often applied to the original design in the remanufacturing process. This part is primarily made for a Cummins QSB 6.7L, production years 2011-2016, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: 24 Volt actuator

OEM NUMBERS

Primary OEM4352379RX
Additional OEM2839591, 2839592, 2839616, 2839617, 2839618, 2839619, 2839620, 2839621, 2839622, 2839623, 2842938, 2881934, 2881934NX, 2881934RX, 3768663, 3768664, 3768713, 3768714, 3768715, 3768716, 3768719, 3793783, 3794582, 3794582H, 3794582HX, 4352379, 4352379NX, 4352379RX

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490547391
WEIGHT52.00 LBS

SHIPPING OPTIONS

Ship Weight : 52.00 LBS
UPS Ground, 2nd Day Air, Next Day Air

SHIPPING POLICY

Tamerx Diesel Products ships via UPS Ground. Next day air shipping can be arranged for a reasonable price of anywhere from $50.00 - $100.00 depending on the weight of the product and your location. We will do everything we can to make sure that you get the service you need. We understand how important it is to receive your order as quickly as possible.
In most cases Tamerx Diesel Products only needs one address, as long as your product is shipping to the same location as your billing information. In order to eliminate credit card fraud, your billing information must match the credit card you provide.

The terms, conditions, and details of our warranty vary from product to product. Specific warranty details can be found below.

Tamerx Diesel Products provides a replacement warranty on all of our parts. The duration and mileage limitations of the warranty vary by product and are specified on the product's detail page/item listing.

Please note that the warranty covers replacement of the part and the cost of shipping the replacement part to you only. It does not cover any shop, labor, towing, or any similar or related costs. This is not a "money back guarantee".

If you experience a problem with your part or it is not functioning properly, the correct warranty procedure is to call us at (510) 257-1777 (8:00 AM - 5:00 PM ET Monday through Friday). Be sure to have your order number and/or other relevant order information ready so we can easily locate your order and resolve your issue as quickly as possible. From that point, we will review with you any troubleshooting steps that may need to be taken and other areas or systems that can be checked to rule out external problems contributing to your part's issue. If a replacement is determined to be necessary, we will then arrange for your replacement part to ship out ASAP and issue any necessary return shipping labels and/or documents.

As is the case for the majority of the diesel products sold on Tamerx Diesel Products, your part's warranty is active as soon as you install it. In some other cases, warranty activation is contingent upon you sending us your core (i.e., your old part). Tamerx Diesel Products will provide you a return shipping label for parts that have a warranty with a core return condition. When we have received your core return, the part's warranty coverage begins. We reserve the right to void the product warranty if your core is not received within the allotted time, or if it isn't received at all. If the warranty for the diesel part you are purchasing has a core return requirement, it will be clearly noted on the product detail page/item listing.

What is a Core Charge?

A core charge (also called "core deposit") is similar to the deposit you might pay for a can or bottle of soda and is a standard requirement in the auto parts industry. For example, in many states, to promote recycling, you pay a deposit when you purchase a can of soda and receive your deposit back when you return the empty can. Many automotive parts have a core charge, or core price, that works in essentially the same way as a soda can deposit.

30 Day Core Charge Hold

You authorize Tamerx Diesel Products, to hold your credit card for the specified core charge amount and that you agree to return your core with 30 days of receiving the purchased part. When we have received your core return, the hold is released and the core charge payment is canceled.

The customer, or parts buyer, is responsible for any shipping costs associated with core returns unless otherwise specified in the product listing/detail page. Tamerx Diesel Products offers prepaid UPS shipping labels (SKU numbers UPS-CR1 and UPS-CR2) for use in returning your core that are available for purchase on our website during your shopping/order process.

The shipping label you will need to use for the core return is dependent upon what part you are purchasing. UPS-CR1 is good for cores weighing up to 20 pounds. UPS-CR2 is appropriate for shipping cores weighing 21 pounds or more. You must include enough information with the core return that clearly identifies it as a.) a Core Return, and b.) contains enough information we can use to clearly associate the core return with your order. Including a copy of the invoice or packing slip that came with the original shipment, clearly marked "Core Return", is ideal. Alternately, you can include a note marked as "Core Return" that includes your order number, full name and address, and phone number or other contact information. Failure to include this information with your returned core will most likely delay any due core credit being issued and/or delay any applicable warranty activation. Core returns need to be for the exact part purchased and cannot be damaged. Substituting another part in place of the part you have purchased is not acceptable.

All fluids must be drained.

If you have purchased a set or a parts package, you will need to return cores for all components of the set. For example, if you have purchaed a high pressure oil pump with an IPR valve, you will need to return both HPOP and IPR valve cores to receive proper credit. If you have purchased an EGR cooler/EGR valve package, your core return must consist of an EGR cooler core and an EGR valve core, or core credit will not be given.

Core Charges are often mandated by state legislature, and, as such, the actual core charge and taxes on the charge may vary depending on the state in which you buy your part. The Tamerx Diesel Products core charge presented to you online today with your item is representative of the most common core charge.


Give your engine a performance boost with the Cummins QSB 6.7L Turbo Assembly 2011-2016: OEM 4352379RX, built to support efficient air delivery and stronger power output. This turbo assembly helps improve engine responsiveness and throttle performance across compatible QSB 6.7L applications. Manufactured to OEM specifications, it offers a reliable fit and long-lasting durability you can count on. A solid upgrade choice for maximizing efficiency and everyday dependability.

FITMENT CHART

YEARMAKEENGINE(S)
2011Cummins QSB 6.7L
2012Cummins QSB 6.7L
2013Cummins QSB 6.7L
2014Cummins QSB 6.7L
2015Cummins QSB 6.7L
2016Cummins QSB 6.7L

PEOPLE ALSO ASKS | BLOG(S)

A turbocharger is a key component in modern diesel engines, helping to increase airflow into the engine for improved combustion and power delivery. The Cummins QSB 6.7L Turbo Assembly (2011–2016, OEM 4352379RX) is engineered to provide the right amount of boost pressure, supporting efficient fuel combustion and dependable engine operation. Choosing a high-quality, OEM-spec turbo assembly ensures your engine maintains performance, fuel efficiency, and durability.

This turbo assembly plays a significant role in how your engine performs — here’s why it matters:

  • Delivers Optimal Boost Pressure – Helps compress incoming air, increasing air density for improved combustion and responsiveness.

  • Supports Smooth, Responsive Operation – Proper turbo function can reduce lag and help provide consistent power throughout the RPM range.

  • Enhances Fuel Efficiency – With accurate boost control, the engine burns fuel more effectively, which can contribute to better fuel economy.

  • OEM-Grade Fit and Durability – As OEM 4352379RX, this turbo assembly meets original specifications for fit, airflow characteristics, and long-term reliability.

  • Protects Engine Components – A properly functioning turbo helps maintain the correct air-to-fuel ratio, reducing stress on internal engine parts.

Replacing a worn or failing turbocharger is essential for restoring engine performance and efficiency. The Cummins QSB 6.7L Turbo Assembly (OEM 4352379RX) provides the OEM-standard quality and reliability needed for consistent boost delivery, stable operation, and long-lasting performance. For drivers and technicians seeking a dependable replacement part, Tamerx offers a trusted solution to help your diesel engine run smoothly and reliably.

The turbo assembly is one of the hardest-working components in a diesel or gasoline engine. It endures extreme heat, high RPMs, and constant pressure. With proper maintenance, a turbo can deliver long-lasting performance and efficiency. Neglect, however, can lead to premature wear or costly failure.

Best Practices to Maintain a Turbo Assembly

  • Use High-Quality Oil
    Turbos rely on clean, high-grade oil for lubrication—dirty or low-quality oil is the fastest way to damage bearings.

  • Change Oil and Filters Regularly
    Stick to recommended oil and filter change intervals to prevent contaminants from circulating through the turbo.

  • Allow Proper Warm-Up and Cool-Down
    Letting the engine warm up ensures proper oil flow, while idling for a short time before shutdown prevents oil starvation and overheating.

  • Check for Air and Exhaust Leaks
    Damaged gaskets or leaks can affect airflow and increase turbo strain.

  • Maintain a Clean Air Filter
    A clogged or dirty air filter can allow debris into the turbo, causing blade damage.

  • Avoid Overloading the Engine
    Heavy towing or aggressive driving without proper cooling can push the turbo beyond its safe limits.

  • Inspect Regularly
    Listen for unusual noises like whining or grinding, and watch for smoke or power loss as early warning signs.

Maintaining a turbo assembly for long-term reliability comes down to consistent care. Clean oil, proper warm-up and cool-down habits, and regular inspections go a long way toward keeping the turbo efficient and dependable. By following these practices, you’ll maximize performance, reduce costly repairs, and extend the life of your turbo.

Common symptoms include reduced engine power, excessive exhaust smoke, unusual whining noises, or slower throttle response. These signs may indicate internal wear or airflow issues within the turbo assembly.

Turbo failure is often caused by poor lubrication, contaminated oil, restricted airflow, or excessive heat. Lack of regular maintenance can accelerate wear on internal turbo components.

With proper maintenance, this turbo assembly can last many years under normal operating conditions. Regular oil changes and clean air filtration play a key role in extending its service life.

Yes, a failing turbo can impact overall engine operation by disrupting airflow and exhaust flow. In severe cases, debris or oil issues may affect other engine systems.

Cummins Turbo Assemblys

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