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Cummins ISX Engine Control Module (ECM) 2003-2006: OEM 3684009

CUMMINS ISX ENGINE CONTROL MODULE (ECM) 2003-2006: OEM 3684009

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,295.00

-
+

CORE CHARGE:

$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 NUMBER 3684009
PART TYPE Engine Control Module (ECM)
BRAND Tamerx Diesel Products
ENGINE MAKE Cummins
ENGINE TYPE ISX
YEAR 2003-2006
PART NUMBER 3684009RM
ADDITIONAL NOTES CM870

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Engine Control Module (ECM), Tamerx part number 3684009RM ( OEM Part Number 3684009 ). 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 2003-2006, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: CM870

OEM NUMBERS

Primary OEM 3684009
Additional OEM 3684009

ADDITIONAL DETAILS

CONDITION Remanufactured
UPC / Barcode
WEIGHT 4.00 LBS

SHIPPING OPTIONS

Ship Weight : 4.00 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 Cummins ISX Engine Control Module (ECM) (2003-2006) is a high-quality replacement designed to meet OEM specifications (Part 3684009), ensuring precise engine management for optimal performance, fuel efficiency, and reliability. This ECM controls critical functions such as fuel injection timing and emissions regulation, making it essential for maintaining or restoring your Cummins ISX engine’s functionality. Trust TamerX for premium diesel components that keep your equipment running smoothly and efficiently.

FITMENT CHART

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

PEOPLE ALSO ASKS | BLOG(S)

The Engine Control Module (ECM) in a Cummins ISX engine plays a crucial role in managing various functions, including fuel injection, air intake, and engine diagnostics. The OEM 3684009 ECM is specifically designed for Cummins ISX engines manufactured between 2003 and 2006, ensuring precise control and smooth operation. A faulty ECM can result in reduced engine performance, increased emissions, and higher fuel consumption, making timely replacement essential.

Key Features of the Cummins ISX Engine Control Module OEM 3684009

  • Optimized Engine Performance
    • The ECM ensures that all engine systems work together seamlessly, optimizing fuel delivery, air intake, and combustion.
  • OEM Quality
    • Manufactured to Cummins’ high standards, this ECM is designed for perfect compatibility with ISX engines from 2003-2006, ensuring reliable performance.
  • Advanced Diagnostics
    • The ECM constantly monitors engine performance, providing real-time data to prevent issues before they become major problems.
  • Improved Fuel Efficiency
    • By controlling the fuel and air mixture, the ECM helps to improve fuel efficiency and reduce operating costs.
  • Long-Lasting Durability
    • Built to withstand harsh environments, this ECM ensures durability and reliable performance over the long term.

Why Choose the OEM 3684009 ECM for Your Cummins ISX Engine?

Replacing a malfunctioning ECM with the OEM 3684009 ensures that your Cummins ISX engine continues to run smoothly and efficiently. A properly functioning ECM is essential for maintaining engine performance, fuel efficiency, and emissions control. Choosing an OEM part guarantees a perfect fit and reliable operation.

For those maintaining Cummins ISX engines from 2003 to 2006, investing in the OEM 3684009 ECM is a crucial step toward ensuring optimal engine performance, improved fuel efficiency, and long-term reliability.

The Engine Control Module (ECM) is the brain of your vehicle’s engine management system, responsible for controlling various engine functions and optimizing performance. When the ECM begins to fail, it can lead to a range of issues that affect your vehicle’s operation and efficiency. Recognizing the symptoms of a bad ECM early can help you address the problem before it causes more significant damage. In this blog, we’ll outline the common signs of a failing Engine Control Module and provide guidance on maintaining your vehicle’s engine management system.

  • Check Engine Light

    • One of the most obvious signs of a bad ECM is the illumination of the check engine light on your dashboard. The ECM monitors various engine parameters, and a malfunction can trigger this warning light.

  • Poor Engine Performance

    • A failing ECM can lead to a noticeable decline in engine performance, including sluggish acceleration, rough idling, and decreased power. These issues occur because the ECM is unable to properly manage engine functions.

  • Increased Fuel Consumption

    •  If you experience a sudden drop in fuel efficiency, it may be due to a malfunctioning ECM. The ECM’s inability to regulate fuel delivery and air-fuel ratios can lead to higher fuel consumption.

  • Engine Stalling or Misfiring

    • A bad ECM can cause engine stalling or misfiring as it struggles to control ignition timing and fuel injection. These symptoms can result in an unstable engine operation and reduced drivability.

  • Difficulty Starting the Engine

    •  If you have trouble starting your vehicle or notice extended cranking times, it could be a sign of an ECM issue. A malfunctioning ECM may not send the correct signals to the ignition and fuel systems, affecting engine starting.

  • Erratic Behavior

    • The ECM controls various engine functions, and a failing module can lead to erratic behavior such as sudden acceleration or deceleration. This unpredictability can affect your driving experience and safety.

  • Unusual Engine Noises

    • Pay attention to any unusual noises from the engine, such as knocking or pinging. These noises may indicate that the ECM is not properly managing engine functions, leading to performance issues.

Identifying the symptoms of a bad Engine Control Module is crucial for maintaining your vehicle’s performance and preventing further damage. By monitoring for signs such as the check engine light, poor performance, and increased fuel consumption, you can take action to address ECM issues promptly. Regular maintenance and timely repairs are key to ensuring that your ECM functions correctly, keeping your engine running smoothly and efficiently. If you suspect problems with your ECM, consult a professional mechanic to assess and resolve the issue as soon as possible.

It manages engine operations by regulating fuel injection, ignition timing, and emissions control.

Regular software updates and ensuring proper sensor function can help maintain its performance.

Some users have reported software glitches and sensor malfunctions affecting performance. 

Replacement should be conducted by a qualified technician to ensure proper installation and programming.

 

Cummins Engine Control Module (ECM)s