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Cummins ISM Fuel Injector : OEM 4902921RX ( Set of 6 )

CUMMINS ISM FUEL INJECTOR : OEM 4902921RX ( SET OF 6 )

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,680.00

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 NUMBER4902921RX
PART TYPEFuel Injector
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEISM
YEAR
PART NUMBER4902921RM-SET

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Fuel Injector, Tamerx part number 4902921RM-SET ( OEM Part Number 4902921RX ). 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 ISM, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM4902921RX
Additional OEM4902921RX

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode
WEIGHT14.40 LBS

SHIPPING OPTIONS

Ship Weight : 14.40 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 Cummins ISM engines, this OEM 4902921RX Fuel Injector Set of 6 delivers precise fuel injection and dependable engine performance. Each injector is remanufactured to strict OEM standards, making it a smart solution for resolving fuel system problems or completing routine service. Count on Tamerx for high-quality, durable parts that help your diesel engine stay efficient and reliable on the road or on the job.

PEOPLE ALSO ASKS | BLOG(S)

For owners and operators of heavy-duty vehicles powered by the Cummins ISM engine, ensuring optimal fuel delivery is crucial for maintaining performance and efficiency. The Cummins ISM Fuel Injector set, OEM 4902921RX, is designed to provide precise fuel injection, enhancing engine operation. In this blog, we will explore the importance of this fuel injector set and its benefits for your vehicle.

The Role of the Cummins ISM Fuel Injector

Fuel injectors are responsible for delivering the right amount of fuel into the combustion chamber at the correct time. This is essential for efficient combustion, which directly impacts engine performance, fuel efficiency, and emissions. Here’s why the Cummins ISM Fuel Injector set, OEM 4902921RX, is vital:

  • Precise Fuel Delivery
    •  Ensures accurate fuel injection, optimizing combustion and engine efficiency.
  • Enhanced Engine Performance
    • Maintains consistent engine power by providing the correct fuel-to-air ratio.
  • Improved Fuel Efficiency
    •  Reduces fuel wastage by delivering precise fuel amounts, leading to better fuel economy.
  • Reduced Emissions
    • Promotes cleaner combustion, thereby lowering harmful emissions.

Key Features of the Cummins ISM Fuel Injector Set: OEM 4902921RX

  • High-Quality Construction
    • Made from durable materials to withstand the demands of heavy-duty applications.
  • Precision Engineering
    •  Designed to meet strict OEM specifications for reliable performance and compatibility.
  • Consistent Performance
    •  Provides stable fuel injection across various operating conditions, ensuring smooth engine operation.
  • Set of 6 Injectors
    •  Ensures uniform replacement for all injectors, optimizing overall engine performance.

Benefits of Using the Cummins ISM Fuel Injector Set

  • Enhanced Engine Longevity
    • Reliable fuel delivery reduces strain on the engine, contributing to its longevity.
  • Stable Performance
    • Maintains consistent engine performance under various operating conditions.
  • Cost Savings
    •  By improving fuel efficiency and reducing the need for frequent maintenance, this injector set helps lower operational costs.
  • Environmentally Friendly
    • Contributes to lower emissions, making your vehicle more environmentally compliant.

The Cummins ISM Fuel Injector set, OEM 4902921RX, is an essential component for maintaining the efficiency and reliability of your engine. By ensuring precise fuel delivery, this set of injectors plays a critical role in improving fuel efficiency, reducing emissions, and enhancing overall engine performance. Investing in high-quality fuel injectors can significantly improve the longevity and functionality of your engine, ensuring smooth and efficient operations for your heavy-duty vehicle. Keep your engine running at its best with the Cummins ISM Fuel Injector set.

Fuel injectors are essential components in modern engines, ensuring the precise delivery of fuel for optimal combustion. When fuel injectors fail, they can lead to a variety of engine performance issues and increased emissions. Understanding the common causes of fuel injector failure can help you take preventative measures and maintain your vehicle’s efficiency and reliability.

Fuel injectors play a crucial role in your vehicle's engine by delivering the right amount of fuel for efficient combustion. However, several factors can cause fuel injectors to fail, leading to poor engine performance and higher emissions. By recognizing these causes, you can take steps to prevent injector failure and keep your vehicle running smoothly. Here are the primary reasons fuel injectors fail.

  • Fuel Contamination

    • One of the leading causes of fuel injector failure is contamination. Dirt, debris, and water in the fuel can clog injectors, causing them to malfunction. Using high-quality fuel and regularly replacing the fuel filter can help prevent contamination.

  • Wear and Tear

    • Over time, the constant opening and closing of the injector’s internal components can lead to wear and tear. This natural degradation can cause the injectors to become less efficient or fail completely.

  • Poor Fuel Quality

    • Low-quality fuel that lacks the necessary additives for lubrication can cause excessive wear on the injectors. This can lead to clogging and corrosion, reducing the injectors' lifespan.

  • Electrical Issues

    • Fuel injectors rely on electrical signals to operate. Problems such as faulty wiring, poor connections, or issues with the vehicle's electronic control unit (ECU) can disrupt injector function, leading to failure.

  • Heat and Vibration

    • The engine bay is a harsh environment with high heat and constant vibration. These conditions can cause injectors to become damaged over time, especially if they are not adequately protected or maintained.

  • Ethanol Fuel

    •  High ethanol content in fuel can be more corrosive and less lubricating than traditional gasoline. This can lead to increased wear and tear on fuel injectors, causing them to fail prematurely.

  • Injector O-Ring Failure

    • The O-rings that seal the injectors to the fuel rail can degrade over time, leading to leaks. Leaking injectors can cause poor engine performance and increased fuel consumption.

  • Fuel Pressure Issues

    •  Inconsistent fuel pressure, whether too high or too low, can cause injectors to malfunction. This can be due to a failing fuel pump, a clogged fuel filter, or a faulty fuel pressure regulator.

In conclusion, fuel injector failure can be caused by fuel contamination, wear and tear, poor fuel quality, electrical issues, heat and vibration, ethanol fuel, O-ring failure, and fuel pressure issues. By understanding these common causes, you can take preventative measures to maintain your fuel injectors and ensure optimal engine performance. Regular maintenance, using high-quality fuel, and addressing any issues promptly can help extend the life of your fuel injectors. If you suspect problems with your injectors, consult a professional mechanic for a thorough inspection and necessary repairs to keep your vehicle running efficiently.

It delivers precise amounts of pressurized fuel into the combustion chamber to power the engine efficiently.

This fuel injector generally lasts 300,000 to 400,000 miles with proper maintenance.

It can cause cylinder washdown, reduced compression, and long-term engine wear.

Use clean fuel, replace filters regularly, and inspect injectors during major service intervals.

 

Cummins Fuel Injectors

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