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Cummins ISM Fuel Injector : OEM 4902925RX ( Set of 6 )

CUMMINS ISM FUEL INJECTOR : OEM 4902925RX ( SET OF 6 )

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,370.00

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 NUMBER4902925RX
PART TYPEFuel Injector
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEISM
YEAR
PART NUMBER4902925RM-SET

PRODUCT DESCRIPTION

This is a Remanufactured, Tamerx Fuel Injector, Tamerx part number 4902925RM-SET ( OEM Part Number 4902925RX ). 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 OEM4902925RX
Additional OEM4902925RX

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode
WEIGHT24.00 LBS

SHIPPING OPTIONS

Ship Weight : 24.00 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.


This set of six OEM 4902925RX fuel injectors is made to match the requirements of Cummins ISM engines, offering precise fuel delivery tailored to factory specifications. Each injector is crafted to ensure a consistent fit and function, helping maintain steady engine behavior over time. Ideal for routine servicing or direct replacement, these components are designed to integrate with your engine system without extra adjustments. The OEM classification confirms their suitability for original applications, reducing downtime and uncertainty. Keep your Cummins ISM running with components built to align with its original engineering.

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The Cummins ISM engine is widely trusted in heavy-duty trucks and equipment, and its fuel system plays a critical role in engine reliability. A key component in that system is the OEM 4902925RX fuel injector, designed to deliver diesel with precise timing and atomization.

This injector set includes six factory-calibrated units, engineered to match Cummins ISM specifications. Whether you're maintaining a fleet or servicing a single vehicle, replacing all six injectors together ensures consistent engine behavior.

Key features of the OEM 4902925RX fuel injector include:

  • Precision Nozzle
    • Delivers a fine spray pattern for efficient combustion
  • Durable Body Construction
    • Built to withstand heat and pressure cycles
  • Integrated Solenoid Valve
    • Controls fuel delivery electronically
  • OEM Fit and Calibration
    • Designed specifically for Cummins ISM engines
  • Fuel Seal Rings Included
    • Ensures proper installation and sealing

This injector set is ideal for ISM engines in trucks, buses, and vocational vehicles from various manufacturers. Confirm your engine model and part number (4902925RX) to guarantee the correct fit.

Using the right injector set supports consistent fuel delivery and dependable daily operation without unnecessary downtime.

A failed fuel injector can disrupt the engine's ability to run smoothly and efficiently. Identifying the issue early is important to avoid more serious damage or costly repairs.

Common symptoms of a bad fuel injector include:

  • Rough idle
    • or shaking at stoplights
  • Engine misfires
    • especially under load or at startup
  • Poor fuel economy
  • Fuel smell
    • from the engine bay or exhaust
  • Check engine light
    • often with codes like P0300–P0308

Diagnostic steps for a failed fuel injector:

  • Scan for trouble codes
    • using an OBD-II scanner to pinpoint misfiring cylinders.
  • Listen for clicking sounds
    • Each injector should make a rhythmic clicking noise; silence may indicate a stuck or dead injector.
  • Inspect the injector wiring
    • and connectors for damage or corrosion.
  • Perform a resistance test
    • with a multimeter to check if the injector coil is within spec.
  • Conduct a balance test
    • which involves measuring fuel pressure drop when each injector is activated—minimal drop may suggest a clogged or non-functioning injector.

If a fuel injector is clogged, cleaning might help. But if it's electrically or mechanically failed, replacement is usually necessary. Prompt attention helps avoid further damage to spark plugs, pistons, or the catalytic converter.

Programming or calibration may be needed to match injector values to the ECM for optimal operation.

Hard starts, misfires, or uneven fuel delivery may indicate that injector replacement is necessary.

The 4902925RX injectors use an electronically controlled unit injection system for precise fuel delivery.

These injectors are designed specifically for use with diesel fuel.

Cummins Fuel Injectors