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Cummins ISL Turbo Assembly : OEM 5458598RX

CUMMINS ISL TURBO ASSEMBLY : OEM 5458598RX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$3,250.00

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 NUMBER5458598RX
PART TYPETurbo Assembly
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEISL
YEAR
PART NUMBER2881858RM-WA

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Turbo Assembly, Tamerx part number 2881858RM-WA ( OEM Part Number 5458598RX ). 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 ISL, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM5458598RX
Additional OEM2881676, 2881858, 4309190RX, 4352526, 5455954, 5458598RX

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490539525
WEIGHT55.00 LBS

SHIPPING OPTIONS

Ship Weight : 55.00 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.


Supercharge your Cummins ISL with the Turbo Assembly — OEM 5458598RX, engineered for rapid spool-up and robust torque response. Precision-balanced and built to exacting OEM specs, this turbo delivers aggressive boost, smoother power delivery, and improved fuel efficiency—even under demanding loads. Designed for a seamless drop-in fit and long-term durability, it’s the performance component engineered to help your engine roar, haul, and dominate—mile after mile.

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In diesel engine care, the turbo assembly plays a vital role in ensuring smooth airflow and engine efficiency. If your Cummins ISL is showing signs of sluggish response or inconsistent power delivery, replacing the turbo with the OEM 5458598RX can be a game-changer—restoring performance while maintaining system balance.

  • Reestablishes Proper Boost Dynamics
    This OEM assembly restores optimized airflow and boost pressure, helping reduce lag and improving throttle response under varying load conditions.

  • Preserves Engine Efficiency
    A well-functioning turbo ensures the right balance of air delivery for cleaner combustion, which can protect fuel efficiency and lower emissions.

  • Protects Adjacent Components
    Replacing a worn or imbalanced turbo with this OEM assembly helps reduce stress on related parts such as the exhaust and intake components, extending overall system longevity.

  • Reliable OEM Fitment
    Designed to Cummins factory specifications, the OEM 5458598RX installs seamlessly and precisely—no unnecessary modifications required for long-lasting compatibility.

  • Backed by Warranty for Long-Term Assurance
    Comes with trusted warranty coverage, offering peace of mind and reinforcing the reliability of your replacement choice.

Replacing your turbo with the OEM 5458598RX doesn’t just fix a part—it revitalizes airflow, stabilizes engine response, and strengthens system longevity. For clean, dependable performance you can trust, turn to Tamerx Diesel Parts for genuine, long-lasting components.

Choosing the right turbo assembly for your vehicle is essential for ensuring optimal engine performance, reliability, and longevity. Whether you're replacing a failing turbo or considering a new setup, matching the correct turbo assembly with your engine's requirements is critical. Here's a breakdown of the most important factors to consider when making your selection.

Key Factors to Consider When Choosing a Turbo Assembly

  • OEM Compatibility
    Always verify that the turbo assembly matches your vehicle’s make, model, year, and engine type. Use the original equipment manufacturer (OEM) number as a reference to ensure proper fitment.

  • Engine Displacement and Configuration
    Different engines require different levels of airflow and pressure. Ensure the turbo is rated for your engine’s displacement and configuration (e.g., inline, V-type, diesel, gasoline).

  • Application Purpose
    Are you looking for a stock replacement, or are you targeting higher output for towing or long-haul driving? Choose a turbo assembly designed for your specific application needs.

  • Build Quality and Materials
    Look for turbos made with high-quality materials such as billet compressor wheels or heavy-duty housings, especially for demanding environments or extended use.

  • Cooling and Lubrication Requirements
    Some turbo assemblies are oil-cooled, others water-cooled, and some require both. Ensure your engine system supports the turbo’s cooling configuration to avoid premature failure.

  • Sensor and Actuator Compatibility
    Newer turbos often come with integrated electronic actuators or sensors. Make sure these components are compatible with your vehicle’s control systems.

  • Warranty and Support
    Opt for a turbo from a supplier that offers a warranty and customer support. This provides peace of mind and assistance in case any issues arise after installation.


Selecting the right turbo assembly goes beyond just replacing a part — it’s about ensuring your vehicle continues to operate efficiently and reliably. By matching your turbo to OEM specifications, considering your driving needs, and prioritizing quality, you can make a confident and informed choice. Always consult a diesel parts expert or technician if you're uncertain about your selection.

With regular oil changes, clean filtration, and proper operation, it can deliver reliable performance for many tens of thousands of miles.

Listen for whining or rattling sounds, loss of boost, or increased black or blue exhaust smoke.

A failure often leads to loss of power, excessive smoke, poor fuel economy, and potential engine derating.

Check for excessive shaft play, damaged blades, oil leaks, or abnormal noises under load.

Cummins Turbo Assemblys

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