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Cummins QSB4.5 Turbo Assembly 2012-2015: OEM 4955269RX

CUMMINS QSB4.5 TURBO ASSEMBLY 2012-2015: OEM 4955269RX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,850.00

-
+

CORE CHARGE:

$500.00
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 NUMBER 4955269RX
PART TYPE Turbo Assembly
BRAND Tamerx Diesel Products
ENGINE MAKE Cummins
ENGINE TYPE QSB4.5
YEAR 2012-2015
PART NUMBER 4955269RM
APPLICATION NOTES Tier 3
ADDITIONAL NOTES HE221W

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Turbo Assembly, Tamerx part number 4955269RM ( OEM Part Number 4955269RX ). 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 QSB4.5, production years 2012-2015, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: HE221W

OEM NUMBERS

Primary OEM 4955269RX
Additional OEM 4040209, 4041230, 4936509, 4955269, 4955269RX

ADDITIONAL DETAILS

CONDITION Remanufactured
UPC / Barcode
WEIGHT 38.00 LBS

SHIPPING OPTIONS

Ship Weight : 38.00 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.


Ideal for Cummins QSB4.5 engines manufactured between 2012 and 2015, the OEM 4955269RX turbo assembly is designed to deliver accurate airflow control for consistent engine operation. Built to original equipment specifications, this component integrates smoothly with existing intake and exhaust systems without requiring modifications. Its durable construction helps withstand the stress of high-temperature and high-load environments common in industrial and off-road equipment. The direct-fit design simplifies the installation process, minimizing downtime during service. With OEM-grade reliability, this turbo assembly supports dependable working conditions in line with factory standards.

FITMENT CHART

YEAR MAKE ENGINE(S)
2012 Cummins QSB4.5
2013 Cummins QSB4.5
2014 Cummins QSB4.5
2015 Cummins QSB4.5

PEOPLE ALSO ASKS | BLOG(S)

The Cummins QSB4.5 Turbo Assembly, OEM 4955269RX, is designed to optimize airflow and boost engine efficiency for Cummins QSB4.5 engines from 2012 to 2015. By efficiently directing compressed air into the combustion chamber, the turbocharger ensures that the engine receives the ideal amount of air for better fuel combustion. Whether you’re replacing a faulty turbo or upgrading to an OEM-approved model, this turbo assembly is a critical part for keeping your engine running smoothly.

  • Improved Air Intake

    • The Cummins QSB4.5 Turbo Assembly, OEM 4955269RX, is engineered to deliver optimal air compression into the engine’s combustion chamber. This increased air volume ensures a more efficient fuel burn, improving engine power and efficiency.

  • Prevents Overheating

    • A well-functioning turbo assembly helps reduce the temperature within the combustion chamber, preventing the engine from overheating. This not only improves performance but also extends the lifespan of the engine’s components.

  • Reliable OEM Fit

    • Using the OEM 4955269RX turbo assembly ensures perfect compatibility with your Cummins QSB4.5 engine. OEM parts are specifically designed to meet manufacturer specifications, reducing installation time and minimizing the risk of malfunctions.

  • Boosts Fuel Efficiency

    •  By increasing air intake, the turbo allows for better combustion, which in turn reduces fuel consumption. The Cummins QSB4.5 Turbo Assembly can help truck operators save on fuel costs by optimizing engine performance.

For those maintaining Cummins QSB4.5 engines from 2012 to 2015, the Cummins QSB4.5 Turbo Assembly, OEM 4955269RX, is an essential component that helps improve air intake, prevent overheating, and boost fuel efficiency. Investing in this high-quality OEM turbo assembly ensures reliable performance and prolongs the lifespan of your engine. At TamerX Diesel Parts, we offer the Cummins QSB4.5 Turbo Assembly to keep your engine running smoothly and efficiently.

A turbocharger is designed to boost engine power and efficiency by increasing airflow into the engine. However, when a turbo assembly fails, it can lead to significant engine performance issues and costly repairs. Understanding the common causes of turbo assembly failure can help you take preventive measures and keep your engine running smoothly.
  • Oil Contamination
    •  Dirty or contaminated oil can damage the bearings and other internal components of the turbo, leading to premature failure.
  • Oil Starvation
    • A lack of proper oil flow to the turbo can cause the moving parts to overheat and wear down, resulting in failure.
  • Foreign Object Damage
    • Debris entering the turbocharger can cause damage to the compressor or turbine blades, affecting performance or leading to complete failure.
  • Excessive Heat
    • High operating temperatures can cause the turbo to overheat, especially if there are issues with the cooling system, leading to cracks and other failures in the assembly.
  • Poor Lubrication
    • Inadequate or delayed oil changes can result in insufficient lubrication, increasing friction and wear on the turbo components.
  • Boost Pressure Issues
    • Excessive boost pressure can put too much stress on the turbocharger, causing it to fail sooner than expected.
  • Faulty Installation
    • Incorrect installation of a turbo assembly can lead to leaks, improper alignment, or insufficient lubrication, which can cause early failure.

Turbo assembly failure can be caused by various factors, from oil contamination to improper installation. Regular maintenance, using clean oil, and ensuring proper cooling can help prevent these issues and prolong the life of your turbocharger. By taking care of your turbo assembly, you can maintain optimal engine performance and avoid costly repairs down the road.

Yes, worn bearings, damaged seals, or a stuck wastegate can reduce boost and affect combustion.

No calibration is needed for fixed geometry turbos, but system pressure and leaks should still be tested.

Causes include oil starvation, dirty oil, air filter damage, or foreign object debris in the intake or exhaust.

Yes, restricted airflow can cause increased exhaust temperatures and stress the turbocharger.

Cummins Turbo Assemblys