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Cummins ISX Fuel Injector 2003-2010: OEM 4088665RX ( Set of 6 )

CUMMINS ISX FUEL INJECTOR 2003-2010: OEM 4088665RX ( SET OF 6 )

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,094.00

-
+

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 NUMBER 4088665RX
PART TYPE Fuel Injector
BRAND Tamerx Diesel Products
ENGINE MAKE Cummins
ENGINE TYPE ISX
YEAR 2003-2010
PART NUMBER 4088665RM-SET

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Fuel Injector, Tamerx part number 4088665RM-SET ( OEM Part Number 4088665RX ). 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 2003-2010, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM 4088665RX
Additional OEM 4088665RX

ADDITIONAL DETAILS

CONDITION Remanufactured
UPC / Barcode
WEIGHT 15.60 LBS

SHIPPING OPTIONS

Ship Weight : 15.60 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.


Compatible with 2003–2010 Cummins ISX engines, this OEM 4088665RX Fuel Injector Set of 6 offers accurate fuel flow and consistent engine performance. Each injector is carefully remanufactured to OEM standards, making it a dependable option for resolving fuel-related problems or handling routine upkeep. Trust Tamerx for reliable, long-lasting parts that support the efficiency and durability of your diesel engine.

FITMENT CHART

YEAR MAKE ENGINE(S)
2003 Cummins ISX
2004 Cummins ISX
2005 Cummins ISX
2006 Cummins ISX
2007 Cummins ISX
2008 Cummins ISX
2009 Cummins ISX
2010 Cummins ISX

PEOPLE ALSO ASKS | BLOG(S)

For heavy-duty engines like the Cummins ISX, efficient fuel delivery is crucial for optimal performance and fuel economy. The Cummins ISX Fuel Injector, OEM 4088665RX (Set of 6), is designed to provide precise fuel injection, ensuring your engine runs smoothly and efficiently. In this blog, we will focus on how the Cummins ISX Fuel Injector set maximizes fuel efficiency and enhances engine performance.

The Role of the Fuel Injector

Fuel injectors are vital components in your Cummins ISX engine's fuel system. They ensure that the right amount of fuel is delivered to the combustion chamber at the correct pressure and timing. Here are some key points about the fuel injectors:

  • Precise Fuel Delivery
    • The fuel injectors deliver fuel into the engine in precise amounts, ensuring efficient combustion and optimal power output.
  • Improved Fuel Efficiency
    • By delivering the exact amount of fuel needed, the injectors help improve fuel efficiency, allowing your engine to achieve better mileage.
  • Enhanced Engine Performance
    • Proper fuel injection leads to smoother engine operation, better acceleration, and overall improved performance.
  • Reduced Emissions
    • Efficient combustion facilitated by accurate fuel injection results in lower emissions, making your engine more environmentally friendly.

Benefits of Using the OEM 4088665RX Fuel Injector Set

Choosing the Cummins ISX Fuel Injector, OEM 4088665RX, offers several advantages:

  • Exact Fit and Compatibility
    • As an original equipment manufacturer (OEM) part, it guarantees a perfect fit and seamless integration with your Cummins ISX engine.
  • High-Quality Standards
    •  OEM parts are manufactured to meet stringent quality standards, ensuring reliability and longevity.
  • Optimal Performance
    • The OEM 4088665RX fuel injector set is designed to provide optimal performance, enhancing the overall efficiency of your engine.
  • Complete Set
    •  Purchasing the set of 6 injectors ensures that all injectors in your engine are replaced simultaneously, promoting balanced performance and efficiency.
  • Warranty and Support
    • Purchasing an OEM fuel injector set provides the peace of mind that comes with warranty coverage and support from Cummins.

Ensuring that your Cummins ISX engine receives precise and efficient fuel delivery is essential for maintaining its performance and fuel economy. The Cummins ISX Fuel Injector, OEM 4088665RX (Set of 6), plays a crucial role in achieving this goal by providing accurate fuel injection, improving fuel efficiency, enhancing engine performance, and reducing emissions. Invest in the OEM 4088665RX fuel injector set to keep your Cummins ISX engine running efficiently and reliably. Optimize your engine's fuel delivery system with the right fuel injectors.

Choosing the right fuel injector is crucial for maintaining your vehicle’s engine performance and efficiency. With various options available, selecting the correct injector can be challenging. In this blog, we will explore the key factors to consider when choosing a fuel injector to ensure optimal engine operation.

Fuel injectors play a vital role in delivering the precise amount of fuel to your engine’s combustion chamber, ensuring efficient combustion and performance. Selecting the right fuel injector is essential for maintaining your vehicle’s power, fuel economy, and emissions. This guide will help you understand the critical factors to consider when choosing a fuel injector for your vehicle.

  • Vehicle Specifications
    • The first step in choosing the right fuel injector is to consider your vehicle’s make, model, and engine specifications. Consult your vehicle’s manual or manufacturer’s recommendations to ensure compatibility.
  • Flow Rate
    • Fuel injectors are rated by their flow rate, typically measured in pounds per hour (lb/hr) or cubic centimeters per minute (cc/min). The flow rate should match your engine’s fuel requirements to avoid running too rich or too lean.
  • Injector Type
    •  There are various types of fuel injectors, including port fuel injectors, direct fuel injectors, and throttle body injectors. Choose the type that is compatible with your engine and fuel system design.
  • Fuel Type
    • Ensure that the fuel injector is designed for the type of fuel your vehicle uses, whether it’s gasoline, diesel, or ethanol. Different fuels have different properties that require specific injector designs.
  • Injector Impedance
    • Fuel injectors come in low impedance (peak and hold) and high impedance (saturated) types. Check your vehicle’s requirements to select the appropriate impedance to ensure proper operation and compatibility with the engine control unit (ECU).
  • Spray Pattern
    • The spray pattern of the fuel injector affects how the fuel mixes with air in the combustion chamber. Choose an injector with a spray pattern that matches your engine’s design for optimal combustion efficiency.
  • Quality and Brand
    • Opt for high-quality fuel injectors from reputable brands. While they may cost more, they often provide better performance, durability, and reliability compared to cheaper alternatives.
  • Performance Needs
    • If you have a high-performance engine or have made modifications to increase power, you may need fuel injectors with a higher flow rate to meet the increased fuel demands.
  • Consult a Professional
    • If you’re unsure about which fuel injector to choose, consult a professional mechanic or an expert in automotive performance. They can provide valuable insights and recommendations based on your specific vehicle and performance goals.

In summary, choosing the right fuel injector involves considering various factors such as vehicle specifications, flow rate, injector type, fuel type, impedance, spray pattern, quality, and performance needs. By taking these factors into account, you can select a fuel injector that ensures optimal engine performance and efficiency. Regular maintenance and using high-quality components will help keep your engine running smoothly and reliably. If you’re unsure about the best choice for your vehicle, seeking professional advice can help you make an informed decision and achieve the best results for your engine.

Premature wear can result from contaminated fuel, clogged filters, or poor maintenance habits.

Wear typically affects the internal seals, nozzle tips, and solenoid components.

Injector pullers and torque wrenches are typically used to remove and reinstall injectors safely.

Look for fuel residue, dampness, or carbon buildup around the injector and seals.

 

Cummins Fuel Injectors