
Cummins ISB 6.7L Aftertreatment Hose 2018-2024: OEM 5418430
CUMMINS ISB 6.7L AFTERTREATMENT HOSE 2018-2024: OEM 5418430

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Genuine New, Cummins Aftertreatment Hose, Cummins part number 5418430-OE ( OEM Part Number 5418430 ).This part is primarily made for a Cummins ISB 6.7L, production years 2018-2024, and comes with a One Million Miles or One Year Warranty.
OEM NUMBERS
| Primary OEM | 5418430 |
| Additional OEM | 5418430, A059E909 |
ADDITIONAL DETAILS
| CONDITION | Genuine New |
| UPC / Barcode | 00840490555136 |
| WEIGHT | 1.00 LBS |
SHIPPING OPTIONS
Ship Weight : 1.00 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 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, 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 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"
Restore proper aftertreatment system function with this Cummins ISB 6.7L Aftertreatment Hose for 2018–2024 applications. OEM 5418430 helps transfer pressure and gases through the emissions system, supporting accurate monitoring and consistent operation. This hose serves as a reliable replacement for a cracked, leaking, worn, or damaged component in compatible Cummins ISB 6.7L engines.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2018 | Cummins | ISB 6.7L | ||||
| 2019 | Cummins | ISB 6.7L | ||||
| 2020 | Cummins | ISB 6.7L | ||||
| 2021 | Cummins | ISB 6.7L | ||||
| 2022 | Cummins | ISB 6.7L | ||||
| 2023 | Cummins | ISB 6.7L | ||||
| 2024 | Cummins | ISB 6.7L | ||||
PEOPLE ALSO ASKS | BLOG(S)
Repeated exposure to harsh exhaust system conditions can gradually weaken an Aftertreatment Hose and lead to cracks or leaks. High temperatures, vibration, contamination, and improper routing can all affect the hose material and its connections over time.
- High exhaust temperatures: Constant heat exposure can harden or weaken hose material, eventually causing cracks.
- Repeated heat cycles: Frequent heating and cooling can make the hose less flexible and more susceptible to deterioration.
- Engine vibration: Continuous vibration may stress the hose, fittings, and connection points until small leaks develop.
- Improper routing: Contact with sharp edges, moving parts, or extremely hot components can wear through the hose.
- Loose fittings: Connections that are not properly secured may allow movement and leakage around the hose ends.
- Oil or chemical exposure: Contact with fluids or contaminants not compatible with the hose material can accelerate deterioration.
- Age and normal wear: After extended service, the hose may become brittle, cracked, or less capable of maintaining a proper seal.
Finding the cause of an Aftertreatment Hose leak is important before installing a replacement. Checking routing, fittings, mounting points, nearby heat sources, and surrounding components can help prevent the same type of damage from occurring again.
Yes. A blocked pressure-sensing passage can distort the pressure information reaching the sensor and may result in readings that do not accurately represent DPF restriction.
Potentially. Differential-pressure information is one of the inputs used to evaluate aftertreatment conditions, so inaccurate pressure readings can interfere with proper DPF monitoring.
The low-pressure side provides one of the pressure references needed by the differential-pressure sensor. Comparing the high- and low-pressure sides allows the system to determine the pressure difference across the DPF.
Yes. Restrictions, leaks, contamination, or connection problems in a pressure-sensing tube can contribute to inconsistent pressure information reaching the sensor.



















