
Cummins QSB Turbo Assembly 2011-2016: OEM 4955270RX
CUMMINS QSB TURBO ASSEMBLY 2011-2016: OEM 4955270RX

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured Tamerx Turbo Assembly, Tamerx part number 4955270RM ( OEM Part Number 4955270RX ). 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, production years 2011-2016, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
Primary OEM | 4955270RX |
Additional OEM | 4040374, 4040375, 4955270RX |
ADDITIONAL DETAILS
CONDITION | Remanufactured |
UPC / Barcode | |
WEIGHT | 25.00 LBS |
SHIPPING OPTIONS
Ship Weight : 25.00 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.
Specifically made for Cummins QSB engines produced between 2011 and 2016, the OEM 4955270RX Turbo Assembly is designed to align with the original factory setup. This component installs directly into the existing system and supports consistent airflow required for proper engine operation. Its construction follows OEM guidelines, ensuring compatibility without adjustments or fitment concerns. Whether replacing a worn part or conducting scheduled maintenance, this turbo assembly offers a dependable option. Choosing OEM ensures the system stays in line with Cummins’ intended design.
FITMENT CHART
YEAR | MAKE | ENGINE(S) | ||||
---|---|---|---|---|---|---|
2011 | Cummins | QSB | ||||
2012 | Cummins | QSB | ||||
2013 | Cummins | QSB | ||||
2014 | Cummins | QSB | ||||
2015 | Cummins | QSB | ||||
2016 | Cummins | QSB |
PEOPLE ALSO ASKS | BLOG(S)
The Cummins QSB engine series, used in construction, agricultural, and industrial machinery, relies on effective air management for smooth operation. The OEM 4955270RX turbo assembly, built for model years 2011 through 2016, is a key component that supports steady airflow and engine function under demanding conditions.
This turbo is engineered to meet Cummins factory specifications, ensuring proper fit and operation without modification. If you're seeing signs of slow throttle response, excess smoke, or reduced efficiency, your turbocharger may require inspection or replacement.
Core features of the OEM 4955270RX turbo assembly include:
- Compressor and Turbine Housings
- Manage intake and exhaust airflow
- Center Cartridge
- Maintains oil flow to the rotating assembly
- Wastegate Actuator
- Regulates exhaust pressure for stable operation
- Heavy-Duty Construction
- Designed to endure high heat and vibration
- Engine-Specific Mounts and Flanges
- Ensures easy installation on QSB models
Always confirm the OEM part number 4955270RX before ordering to guarantee compatibility with your QSB engine.
This turbo assembly is ideal for use in backhoes, excavators, and other equipment running Cummins QSB platforms from 2011–2016.
A failed turbo assembly can quickly lead to more serious engine trouble if not addressed. If you suspect an issue with your turbocharger, take immediate steps to protect your engine and avoid further damage.
Signs of a Turbo Assembly Failure
Before jumping into repairs, confirm the symptoms:
-
Whining or high-pitched noises from the turbo area
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Sudden drop in fuel efficiency
-
Excessive smoke from the exhaust
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Check engine light is illuminated
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Oil leaks near the turbo or intake piping
Steps to Take When a Turbo Fails:
- Stop Driving Immediately
- Continued driving with a bad turbo can damage the engine due to improper air-to-fuel ratios or oil contamination.
- Inspect for Leaks or Damage
- Check intercooler pipes, oil lines, and air intake for visible signs of wear or oil.
- Check for Contaminated Oil
- Dirty or low oil levels can point to a lubrication issue that may have caused the failure.
- Consult a Professional Technician
- A certified mechanic can run diagnostics to verify the failure and inspect surrounding systems like the exhaust manifold or EGR valve.
- Replace the Turbo Assembly
- Use OEM or high-quality aftermarket parts. Be sure to flush the oil system and replace filters to prevent future issues.
Quick diagnosis and action are critical to minimizing engine damage and repair costs.
Common signs include loss of engine power, excessive exhaust smoke, abnormal noises, or oil leaking from the turbo housing.
Yes, a malfunctioning turbo can lead to poor air-to-fuel ratios, reducing fuel efficiency and increasing emissions.
While technically possible, it is recommended to exchange it through Cummins' core return program for warranty-backed units.
When properly maintained, this turbo can last several thousand hours of operation, depending on engine load and environment.