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Cummins ISX EGR Cooler 2002-2006: OEM 4309434NX

CUMMINS ISX EGR COOLER 2002-2006: OEM 4309434NX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$660.00

-
+

CORE CHARGE:

$250.00
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 4309434NX
PART TYPE EGR Cooler
BRAND Tamerx Diesel Products
ENGINE MAKE Cummins
ENGINE TYPE ISX
YEAR 2002-2006
PART NUMBER EGR783RM

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx EGR Cooler, Tamerx part number EGR783RM ( OEM Part Number 4309434NX ). 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 ISX, production years 2002-2006, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM 4309434NX
Additional OEM 2878071, 2881783, 4089436, 4309434NX, 4952490, 4956008

ADDITIONAL DETAILS

CONDITION Remanufactured
UPC / Barcode 086547485555
WEIGHT 27.00 LBS

SHIPPING OPTIONS

Ship Weight : 27.00 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.


The EGR Cooler (OEM 4309434NX) is designed for Cummins ISX engines manufactured between 2002 and 2006, playing a vital role in managing exhaust gas temperatures. By cooling recirculated exhaust before it re-enters the intake, this component supports efficient combustion and emissions control. Engineered to match original specifications, it ensures a secure fit and dependable function within the existing engine setup. The cooler is built to handle the thermal demands of heavy-duty diesel operation while resisting internal cracking and leakage. It's a trusted replacement for maintenance professionals addressing exhaust system concerns or conducting scheduled emissions service.

FITMENT CHART

YEAR MAKE ENGINE(S)
2002 Cummins ISX
2003 Cummins ISX
2004 Cummins ISX
2005 Cummins ISX
2006 Cummins ISX

PEOPLE ALSO ASKS | BLOG(S)

The Cummins ISX EGR Cooler, specifically the OEM 4309434NX model for the 2002-2006 series, plays a vital role in modern diesel engines. Understanding its function helps diesel enthusiasts and professionals maintain optimal engine performance and reduce harmful emissions.

Key Functions of the Cummins ISX EGR Cooler

The EGR (Exhaust Gas Recirculation) cooler is designed to reduce nitrogen oxide (NOx) emissions by cooling down the exhaust gases before reintroducing them into the engine's intake manifold. Here's a breakdown of its core functions:

  • Emission Reduction
    • By lowering the temperature of the exhaust gases, the EGR cooler helps in reducing NOx emissions, which are a major pollutant.
  • Engine Efficiency
    • The cooler aids in improving overall engine efficiency by maintaining an optimal combustion temperature.

Benefits of the Cummins ISX EGR Cooler

  • Environmental Compliance
    • Ensures that the engine meets stringent emission standards.
  • Improved Fuel Economy
    • Cooler intake temperatures can lead to better fuel combustion and efficiency.
  • Prolonged Engine Life
    • Reduces thermal stress on engine components, contributing to longer engine life.

Key Features of the OEM 4309434NX Model

  • Durability
    • Built with robust materials to withstand high temperatures and pressures.
  • Efficiency
    • High-performance cooling capabilities for enhanced engine function.
  • Compatibility
    • Designed specifically for 2002-2006 Cummins ISX engines, ensuring perfect fit and function.

Regular maintenance of your Cummins ISX EGR Cooler is crucial for maintaining its performance and longevity. Ensure that you follow the manufacturer's guidelines for cleaning and replacement to keep your engine running smoothly and efficiently.

The EGR (Exhaust Gas Recirculation) cooler is an essential component of your vehicle's emissions control system. It helps to reduce emissions by recirculating a portion of the exhaust gases back into the engine's combustion chamber. However, like all automotive parts, the EGR cooler has a limited lifespan and will eventually need to be replaced. In this article, we'll discuss the reasons why you might need to replace your EGR cooler and how to know when it's time to do so.

  • Wear and Tear
    • Over time, the EGR cooler can become clogged with carbon buildup, which can affect its performance. This can lead to decreased engine performance, reduced power, and acceleration, and even engine overheating.
  • Faulty Design or Manufacturing Defect
    • Some EGR coolers are prone to cracking or leaking, which can cause issues with engine performance and emissions. If your vehicle's EGR cooler is prone to these issues, it's essential to have it replaced as soon as possible.

There are a few signs to look out for that may indicate it's time for a replacement.

  • Decreased engine performance
    • If you notice that your vehicle is not accelerating as quickly as it used to, or if you experience a decrease in power while driving, it could be a sign that your EGR cooler is not working correctly.
  • Engine overheating
    • If you find that your engine temperature is running high, it could be a sign that the EGR cooler is not functioning correctly. This is because a damaged or clogged EGR cooler can cause a buildup of exhaust gases, which can lead to increased engine temperature and overheating.

If you experience any of these symptoms, it's essential to have your vehicle inspected by a qualified mechanic as soon as possible. A mechanic can diagnose the issue and determine if the EGR cooler needs to be replaced. In some cases, a simple cleaning may be all that's needed to restore the EGR cooler's function. However, in other cases, a replacement may be necessary.

In conclusion, the EGR cooler is an essential component of your vehicle's emissions control system. It helps to reduce emissions by recirculating a portion of the exhaust gases back into the engine's combustion chamber. However, like all automotive parts, the EGR cooler has a limited lifespan and will eventually need to be replaced. If you experience any signs of decreased engine performance or engine overheating, it's crucial to have your vehicle inspected by a qualified mechanic to determine if the EGR cooler needs to be replaced.

A pressure test or inspection for coolant in the exhaust or white smoke can confirm a leak.

A clogged cooler can restrict exhaust gas flow and cause increased backpressure or overheating.

Yes, using proper coolant and maintaining correct levels helps prevent internal corrosion.

Yes, a leaking or malfunctioning cooler may affect emissions and lead to inspection failure.

Cummins EGR Coolers