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Cummins ISB 6.7L, QSB Wiring Harness 2018-2024: OEM 5417959

CUMMINS ISB 6.7L, QSB WIRING HARNESS 2018-2024: OEM 5417959

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$375.00

AVAILABILITY IN STOCK
OEM NUMBER5417959
PART TYPEWiring Harness
BRANDCummins
ENGINE MAKECummins
ENGINE TYPEISB 6.7L, QSB
YEAR2018-2024
PART NUMBER5417959-OE
APPLICATION NOTESEPA17

PRODUCT DESCRIPTION

This is a Genuine New, Cummins Wiring Harness, Cummins part number 5417959-OE ( OEM Part Number 5417959 ).This part is primarily made for a Cummins ISB 6.7L, QSB, production years 2018-2024, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM5417959
Additional OEM5417959

ADDITIONAL DETAILS

CONDITIONGenuine New
UPC / Barcode00840490554863
WEIGHT2.00 LBS

SHIPPING OPTIONS

Ship Weight : 2.00 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.

"This Product Doesn't Have a Core"


Keep your electrical system connected and running smoothly with the Cummins ISB 6.7L, QSB Wiring Harness 2018–2024 (OEM 5417959). Designed for Cummins ISB 6.7L and QSB engines, this harness helps deliver accurate signal transmission between key components. Manufactured to meet OEM standards, it provides proper fitment and reliable compatibility for the specified model years. Installing the correct wiring harness helps support consistent system communication and dependable performance.

FITMENT CHART

YEARMAKEENGINE(S)
2018Cummins ISB 6.7L QSB
2019Cummins ISB 6.7L QSB
2020Cummins ISB 6.7L QSB
2021Cummins ISB 6.7L QSB
2022Cummins ISB 6.7L QSB
2023Cummins ISB 6.7L QSB
2024Cummins ISB 6.7L QSB

PEOPLE ALSO ASKS | BLOG(S)

A reliable electrical system is essential for keeping modern diesel engines and aftertreatment systems working together seamlessly. The Cummins wiring harness serves as a central connection network, linking sensors, control modules, and emissions components into one organized system. In ISB 6.7L and QSB applications, this harness ensures accurate signal transmission and supports consistent engine and emissions performance.

  • Connects Key Engine and Aftertreatment Components
    The harness links sensors, actuators, and modules—allowing communication between the engine and emissions system for coordinated operation.
  • Delivers Reliable Power and Data Transmission
    It carries electrical signals and voltage throughout the system, ensuring the engine control module (ECM) receives accurate real-time information.
  • Supports Aftertreatment System Integration
    Designed specifically for emissions systems, the harness connects components like the DPF and SCR to the ECM, helping maintain proper system function.
  • Simplifies Installation and Maintenance
    By grouping multiple wires into one organized assembly, the harness makes installation more efficient and reduces the complexity of electrical routing.
  • Designed for Cummins ISB 6.7L and QSB Engines (2018–2024)
    Built to OEM 5417959 specifications, this harness is engineered for EPA17 6.7L applications, ensuring proper fitment and compatibility.

The wiring harness may not be visible once installed, but it plays a critical role in system performance. For Cummins ISB and QSB engines, a dependable harness ensures accurate communication, supports emissions control, and keeps the entire engine system operating smoothly day after day.

A wiring harness is responsible for carrying electrical signals and power between various components in a vehicle. It connects sensors, control modules, and actuators, ensuring everything communicates properly. When the wiring harness becomes damaged or worn, it can lead to a wide range of electrical problems that affect performance and reliability.

  • Intermittent electrical issues may occur, such as sensors working inconsistently or systems turning on and off unexpectedly.
  • Warning lights, including the check engine light, can be triggered due to disrupted signals.
  • Faulty communication between components may lead to incorrect data being sent to the engine control module.
  • Short circuits or open circuits can cause systems to stop functioning completely.
  • Blown fuses may result from damaged wires or exposed conductors.
  • Corrosion or loose connections can reduce electrical flow, leading to weak or unstable performance.
  • In some cases, multiple unrelated systems may show issues due to shared wiring paths.

A bad wiring harness can create complex electrical problems that are difficult to diagnose if overlooked. Regular inspection and prompt repair of damaged wiring help ensure reliable system operation and prevent further complications.

Yes, excessive heat can damage insulation and impact performance.

Yes, it functions whenever the system is powered.

It allows signals to travel between components for coordinated operation.

Yes, corrosion can disrupt electrical connections and signal flow.

Cummins Wiring Harnesss

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