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Cummins ISF 2.8L Turbo Assembly 2018-2024: OEM 5451746

CUMMINS ISF 2.8L TURBO ASSEMBLY 2018-2024: OEM 5451746

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$5,895.00

CORE CHARGE:

$1,500.00
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 NUMBER5451746
PART TYPETurbo Assembly
BRANDHolset
ENGINE MAKECummins
ENGINE TYPEISF 2.8L
YEAR2018-2024
PART NUMBER5451746-WA

PRODUCT DESCRIPTION

This is a Genuine New, Holset Turbo Assembly, Holset part number 5451746-WA ( OEM Part Number 5451746 ).This part is primarily made for a Cummins ISF 2.8L, production years 2018-2024, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM 5451746
Additional OEM 3786561, 3798216, 4309505, 5451746, 5502162

ADDITIONAL DETAILS

CONDITION Genuine New
UPC / Barcode 00840490537613
WEIGHT 33.00 LBS

SHIPPING OPTIONS

Ship Weight : 33.00 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 for 2018–2024 Cummins ISF 2.8L engine applications, the OEM 5451746 Turbo Assembly is built to meet original equipment specifications for accurate fitment and dependable operation. This turbocharger directs exhaust gases through the turbine to help maintain proper airflow throughout the engine system. Manufactured with durable materials to withstand high temperatures and demanding duty cycles, it is suited for commercial and industrial diesel environments. Precision balancing and careful assembly support smooth, consistent function under varying load conditions. Tamerx Diesel Products LLC offers this Cummins ISF 2.8L turbo assembly as a reliable solution for maintaining correct air system operation and overall engine efficiency.

FITMENT CHART

YEARMAKEENGINE(S)
2018Cummins ISF 2.8L
2019Cummins ISF 2.8L
2020Cummins ISF 2.8L
2021Cummins ISF 2.8L
2022Cummins ISF 2.8L
2023Cummins ISF 2.8L
2024Cummins ISF 2.8L

PEOPLE ALSO ASKS | BLOG(S)

Airflow management is essential in modern diesel engines, and the Cummins ISF 2.8L Turbo Assembly OEM 5451746 is designed to optimize that process. Used in 2018–2024 Cummins ISF 2.8L applications, this turbocharger helps improve combustion efficiency by increasing the amount of air entering the engine.

The turbo assembly operates by harnessing energy from exhaust gases. As exhaust exits the engine, it flows through the turbine housing, spinning a turbine wheel. This turbine is connected by a shaft to a compressor wheel located on the intake side.

Here’s how the system works step by step:

  • Exhaust gases spin the turbine wheel
  • The turbine shaft turns the compressor wheel
  • The compressor draws in and compresses outside air
  • Pressurized air is sent into the intake manifold
  • Increased airflow supports more complete fuel combustion

By compressing incoming air, the turbo allows the engine to maintain consistent output without increasing engine size. The result is improved airflow efficiency and controlled exhaust flow.

The Cummins ISF 2.8L Turbo Assembly OEM 5451746 also works in coordination with sensors and the engine control module (ECM). These systems regulate boost levels to maintain safe operating conditions and emissions standards.

When functioning properly, the turbo assembly helps maintain steady throttle response, balanced air-to-fuel ratios, and dependable operation in light-duty truck and commercial vehicle applications.

If your turbo assembly is showing signs of trouble, you may be wondering whether it can be repaired or if full replacement is necessary. The answer depends on the type of damage and how early the issue is caught.

Some turbo assemblies are serviceable, while others require complete replacement.

Minor issues may be repairable, such as:

  • Worn seals causing small oil leaks
  • Faulty actuators or wastegate components
  • Damaged boost hoses or external fittings
  • Carbon buildup affecting variable vane movement

In these cases, replacing specific components or cleaning the system may restore proper operation.

However, replacement is typically required if there is:

  • Excessive shaft play
  • Contact between the turbine and housing
  • Cracked turbine or compressor wheels
  • Severe oil contamination
  • Internal bearing failure

Once internal rotating components are damaged, repair options become limited. Debris from a failing turbo can also enter the engine, increasing the risk of additional damage.

A professional inspection is essential. Technicians will check shaft movement, inspect housings, test actuator function, and evaluate oil supply lines to determine the extent of the problem.

Catching issues early greatly improves the chance that the turbo assembly can be serviced rather than fully replaced.

Signs for inspection may include unusual airflow restrictions or diagnostic codes related to airflow measurement.

The OEM 5451746 turbo assembly is intended for use with stock Cummins ISF 2.8L engine layouts.

The 5451746 turbo assembly interfaces directly with the exhaust and intake air paths to regulate airflow.

A properly installed 5451746 helps maintain consistent airflow delivery for combustion across operating conditions.

Cummins Turbo Assemblys