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Cummins ISB 5.9L Turbo Assembly 2003-2007: OEM 4089946RX

CUMMINS ISB 5.9L TURBO ASSEMBLY 2003-2007: OEM 4089946RX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$3,895.00

-
+

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 4089946RX
PART TYPE Turbo Assembly
BRAND Tamerx Diesel Products
ENGINE MAKE Cummins
ENGINE TYPE ISB 5.9L
YEAR 2003-2007
PART NUMBER 4089946RM-WA
ADDITIONAL NOTES HE341VE

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Turbo Assembly, Tamerx part number 4089946RM-WA ( OEM Part Number 4089946RX ). 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 ISB 5.9L, production years 2003-2007, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: HE341VE

OEM NUMBERS

Primary OEM 4089946RX
Additional OEM 4089946RX, 4955167

ADDITIONAL DETAILS

CONDITION Remanufactured
UPC / Barcode 086547498883
WEIGHT 48.00 LBS

SHIPPING OPTIONS

Ship Weight : 48.00 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.


Designed to support efficient engine operation, the Cummins ISB 5.9L Turbo Assembly 2003-2007: OEM 4089946RX plays a vital role in regulating exhaust pressure and airflow. Built to meet OEM specifications, this turbo assembly helps maintain steady power output, fuel efficiency, and smooth acceleration. A failing turbo can cause excessive smoke, reduced engine response, and overheating. Whether replacing a worn-out unit or conducting preventive maintenance, this turbo assembly is essential for keeping your Cummins ISB 5.9L engine performing reliably.

FITMENT CHART

YEAR MAKE ENGINE(S)
2003 Cummins ISB 5.9L
2004 Cummins ISB 5.9L
2005 Cummins ISB 5.9L
2006 Cummins ISB 5.9L
2007 Cummins ISB 5.9L

PEOPLE ALSO ASKS | BLOG(S)

Understanding how the Turbo Assembly 2003-2007: OEM 4089946RX functions in the Cummins ISB 5.9L engine is crucial for maintaining optimal performance. This turbocharger plays a significant role in enhancing the engine’s power and efficiency by forcing more air into the combustion chamber.

Key Functions of the Turbo Assembly:

  • Boosts Engine Power
    • The turbocharger compresses the air entering the engine, allowing more fuel to be burned and significantly increasing power output.
  • Improves Fuel Efficiency
    • By enabling a more complete combustion process, the turbo helps improve fuel efficiency, which is especially beneficial for diesel engines.
  • Reduces Emissions
    • A more efficient combustion process leads to reduced emissions, making the engine more environmentally friendly.

Components and Operation:

  • Compressor Wheel
    • Draws in and compresses air before it enters the combustion chamber.
  • Turbine Wheel
    • Powered by exhaust gases, it drives the compressor wheel.
  • Intercooler
    • Cools the compressed air before it enters the engine, increasing its density and improving combustion.

Benefits of the OEM 4089946RX Turbo Assembly:

  • Durability
    • Built to withstand high temperatures and pressures, ensuring longevity.
  • Compatibility
    • Specifically designed for the Cummins ISB 5.9L, ensuring a perfect fit and optimal performance.
  • Reliability
    • Consistent performance, helping to maintain engine health and reduce the likelihood of breakdowns.

For those looking to replace or upgrade their Cummins ISB 5.9L turbocharger, the OEM 4089946RX is an excellent choice, offering a balance of power, efficiency, and durability. 

Turbo assemblies are critical components in diesel engines, providing the necessary boost for optimal performance. Knowing when to replace a turbo assembly can prevent costly engine damage and maintain your vehicle’s efficiency.

Typically, turbo assemblies should be replaced every 100,000 to 150,000 miles. However, several factors can influence this interval, including driving habits, maintenance practices, and the overall condition of the engine.

Signs that your turbo assembly may need replacement include:

  • Decreased engine performance
  • Excessive exhaust smoke
  • Unusual noises from the turbo
  • Increased oil consumption

Maintenance Tips to Extend Turbo Life:

  • Regular Oil Changes
    • Use high-quality oil and change it at recommended intervals.
  • Air Filter Maintenance
    • Keep the air filter clean to prevent debris from entering the turbo.
  • Proper Warm-Up and Cool-Down
    • Allow the engine to warm up before driving and let it idle for a few minutes before shutting off to protect the turbo.

Ignoring the signs of a failing turbo can lead to more severe engine problems. Regular inspections and timely replacements are crucial.

The OEM 4089946RX Cummins ISB 5.9L Turbo Assembly is designed to enhance engine power and efficiency by forcing more air into the combustion chamber, resulting in improved performance and fuel economy.

By compressing the intake air, the Turbo Assembly allows for a more complete combustion process, which leads to better fuel efficiency and reduced emissions.

Common issues may include wear and tear due to high operating temperatures and pressures; regular inspections can help identify potential problems early.

Always check and clean oil feed lines, replace gaskets, prime the turbo with oil, and inspect for any exhaust or boost leaks.

Cummins Turbo Assemblys