
Cummins ISC 8.3L Fuel Injector 1994-2004: OEM 3911793 ( Set of 6 )
CUMMINS ISC 8.3L FUEL INJECTOR 1994-2004: OEM 3911793 ( SET OF 6 )

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY
WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured Tamerx Fuel Injector, Tamerx part number 3802091-SET ( OEM Part Number 3911793 ). 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 ISC 8.3L, production years 1994-2004, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
Additional Notes: KBAL105P18
OEM NUMBERS
Primary OEM | 3911793 |
Additional OEM | 3802091, 3908513, 3911793 |
ADDITIONAL DETAILS
CONDITION | Remanufactured |
UPC / Barcode | |
WEIGHT | 10.00 LBS |
SHIPPING OPTIONS
Ship Weight : 10.00 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.
Built for Cummins ISC 8.3L engines from 1994 to 2004, this OEM 3911793 fuel injector set includes six units designed for accurate fuel delivery and consistent engine operation. Each injector is manufactured to meet factory specifications, ensuring proper fit and reliable working conditions in a range of diesel applications. With every unit tested for flow accuracy and structural quality, this set provides a solid option for replacing worn or faulty components. The injectors arrive ready for installation, helping reduce service time and streamline maintenance tasks. Whether for routine upkeep or system repair, this set supports dependable engine function over extended use.
FITMENT CHART
YEAR | MAKE | ENGINE(S) | ||||
---|---|---|---|---|---|---|
1994 | Cummins | ISC 8.3L | ||||
1995 | Cummins | ISC 8.3L | ||||
1996 | Cummins | ISC 8.3L | ||||
1997 | Cummins | ISC 8.3L | ||||
1998 | Cummins | ISC 8.3L | ||||
1999 | Cummins | ISC 8.3L | ||||
2000 | Cummins | ISC 8.3L | ||||
2001 | Cummins | ISC 8.3L | ||||
2002 | Cummins | ISC 8.3L | ||||
2003 | Cummins | ISC 8.3L | ||||
2004 | Cummins | ISC 8.3L |
PEOPLE ALSO ASKS | BLOG(S)
Fuel injectors are a critical part of the Cummins ISC 8.3L engine, ensuring precise fuel delivery for efficient combustion. The OEM 3911793 fuel injector set (six injectors) is specifically designed for engines from 1994 to 2004, making it essential for maintaining proper engine function.
Key Components of the Cummins ISC 8.3L Fuel Injector:
Each injector in the set is made up of several essential components, including:
- Nozzle
- Directs fuel spray into the combustion chamber.
- Plunger and Barrel Assembly
- Controls the amount of fuel delivered under high pressure.
- Spring and Retainer
- Ensures proper tension for precise injection timing.
- O-Rings and Seals
- Prevent leaks and maintain a secure fit within the injector bore.
- Body Assembly
- Houses the internal parts and ensures structural integrity.
Using high-quality injectors like the Cummins ISC 8.3L OEM 3911793 set ensures smooth engine operation and consistent fuel atomization. Over time, injectors can wear out, leading to rough idling, decreased fuel efficiency, or hard starts.
Diesel fuel injectors play a critical role in delivering fuel to your engine with precision and efficiency. But like any component, they have a finite lifespan. Understanding how long they last can help you maintain your vehicle and avoid costly repairs.
On average, diesel fuel injectors can last anywhere from 100,000 to 150,000 miles, but their longevity depends on factors like fuel quality, maintenance, and driving conditions. Proper care and timely inspections can extend their lifespan.
Factors That Impact Diesel Fuel Injector Lifespan:
- Fuel Quality
- Contaminated or low-grade fuel can clog injectors, reducing their efficiency and lifespan. Always use clean, high-quality diesel.
- Regular Maintenance
- Timely replacement of fuel filters and system cleaning can prevent buildup that damages injectors.
- Driving Habits
- Excessive idling or harsh driving conditions can increase wear on fuel injectors.
- Engine Type
- Modern engines with advanced injection systems may require more frequent checks.
If you notice symptoms like rough idling, decreased fuel efficiency, or difficulty starting, it might be time to inspect your fuel injectors. Replacing worn injectors can restore smooth operation and prevent further damage to your engine.
Yes, entering trim codes into the ECM is recommended for proper fuel control and injection timing.
Signs include misfiring, rough idle, increased fuel use, and white or black smoke from the exhaust.
Yes, a single bad injector can disrupt cylinder contribution and cause vibrations or loss of efficiency.
The 3911793 injectors are electronically controlled, designed for use in mid-generation ISC engines with ECM regulation.