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Cummins QSC 8.3L, QSL9M Turbo Assembly 2006-2012: OEM 4955375RX

CUMMINS QSC 8.3L, QSL9M TURBO ASSEMBLY 2006-2012: OEM 4955375RX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,195.00

-
+

CORE CHARGE:

$800.00
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 4955375RX
PART TYPE Turbo Assembly
BRAND Tamerx Diesel Products
ENGINE MAKE Cummins
ENGINE TYPE QSC 8.3L, QSL9M
YEAR 2006-2012
PART NUMBER 4955375RM
APPLICATION NOTES Marine
ADDITIONAL NOTES HX55WM

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Turbo Assembly, Tamerx part number 4955375RM ( OEM Part Number 4955375RX ). 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 QSC 8.3L, QSL9M, production years 2006-2012, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: HX55WM

OEM NUMBERS

Primary OEM 4955375RX
Additional OEM 4035897, 4036676, 4037577, 4041661, 4041741, 4089866, 4955375, 4955375RX

ADDITIONAL DETAILS

CONDITION Remanufactured
UPC / Barcode
WEIGHT 58.00 LBS

SHIPPING OPTIONS

Ship Weight : 58.00 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.


Revive the power and efficiency of your engine with the Cummins QSC 8.3L / QSL9M Turbo Assembly (2006–2012): OEM 4955375RX. This genuine OEM turbocharger is engineered to deliver strong, consistent boost and smooth acceleration—perfect for restoring peak performance in demanding work environments. Built for durability and a precise fit, it's the go-to replacement to keep your Cummins-powered machine running strong and responsive.

FITMENT CHART

YEAR MAKE ENGINE(S)
2006 Cummins QSC 8.3L QSL9M
2007 Cummins QSC 8.3L QSL9M
2008 Cummins QSC 8.3L QSL9M
2009 Cummins QSC 8.3L QSL9M
2010 Cummins QSC 8.3L QSL9M
2011 Cummins QSC 8.3L QSL9M
2012 Cummins QSC 8.3L QSL9M

PEOPLE ALSO ASKS | BLOG(S)

The turbocharger is a key component in the Cummins QSC 8.3L engine, ensuring that the engine operates at optimal efficiency by delivering the right amount of compressed air into the combustion chamber. The Cummins QSC 8.3L Turbo Assembly, OEM 4955375RX, is specifically designed for engines from 2006 to 2012, helping to improve engine power, fuel efficiency, and overall performance. If you’re looking to replace a worn or malfunctioning turbo, this OEM assembly ensures long-lasting reliability and better engine health.

  • Improved Air Compression

    • The Cummins QSC 8.3L Turbo Assembly, OEM 4955375RX, is designed to compress air more effectively, ensuring the engine gets an optimal air-to-fuel ratio for efficient combustion. This leads to smoother engine operation and better fuel economy.

  • Prevents Overheating

    • A well-functioning turbo helps reduce the engine’s operating temperature by efficiently managing airflow into the engine. This prevents overheating, which can cause long-term damage to critical engine components.

  • OEM Quality and Fit

    • As an OEM part, the 4955375RX turbo assembly is manufactured to meet Cummins' exact standards, ensuring a perfect fit for the QSC 8.3L engine. OEM-approved parts are known for their reliability and longevity, making this turbo assembly a durable solution for maintaining engine performance.

  • Reduces Fuel Consumption

    • By providing the right amount of compressed air to the engine, this turbo helps improve combustion efficiency. This not only enhances performance but also reduces fuel consumption, leading to cost savings over time.

For those maintaining Cummins QSC 8.3L engines from 2006 to 2012, the Cummins QSC 8.3L Turbo Assembly, OEM 4955375RX, is essential for ensuring proper air compression, preventing overheating, and improving overall fuel efficiency. Replacing your turbo with this high-quality OEM assembly will help prolong engine life and enhance performance. At TamerX Diesel Parts, we provide the best OEM parts to keep your engine running smoothly and efficiently for years to come.

The turbo assembly is responsible for boosting your engine's power by increasing airflow into the combustion chamber. When the turbo starts to fail, it can lead to noticeable performance issues and even potential engine damage. Identifying the early signs of a failing turbo assembly can help you avoid costly repairs and maintain optimal engine efficiency.

  • Loss of Power
    • One of the first signs of a failing turbo is a significant decrease in engine power. You may notice that your vehicle struggles to accelerate or feels sluggish, especially when driving uphill or under heavy loads.
  • Excessive Exhaust Smoke
    • If the turbo assembly is damaged, oil can leak into the exhaust system, causing thick, dark smoke to appear, especially during acceleration.
  • Whistling or Whining Noise
    • A failing turbo often produces a high-pitched whistling or whining noise, which usually indicates that the turbo’s internal components, such as bearings or blades, are worn or damaged.
  • Check Engine Light
    • The check engine light may be triggered when the engine detects issues with boost pressure or airflow, both of which are directly affected by a failing turbo.
  • Increased Oil Consumption
    • A bad turbo can cause oil leaks, leading to excessive oil consumption. You might notice that you're topping off oil more frequently than usual.
  • Poor Fuel Efficiency
    • As the turbo loses its ability to boost engine performance, the engine may burn more fuel to compensate for the loss of power, leading to reduced fuel efficiency.
  • Boost Pressure Los
    •  If your turbo is failing, it may not generate the necessary boost pressure, leading to a drop in engine performance and a noticeable reduction in speed and acceleration.

Recognizing the symptoms of a failing turbo assembly early on is crucial to avoiding more severe engine problems and costly repairs. If you experience power loss, unusual noises, or excessive smoke, it’s essential to have your turbo inspected and repaired as soon as possible. Regular maintenance and timely action can help extend the life of your turbo and ensure your engine continues to perform at its best.

Routine oil changes, using clean filters, and inspecting for leaks help ensure long-term reliability.

Oil leaks may cause smoke, contaminate the intercooler, or reduce engine lubrication.

Unusual whining, grinding, or rattling sounds can be signs of bearing wear or compressor contact.

Ingested debris can chip compressor blades, unbalance the shaft, and severely impact turbo efficiency.

Cummins Turbo Assemblys