Cummins QSF 2.8L, ISF 2.8L Aftertreatment Hose 2014-2021: OEM 4329753
CUMMINS QSF 2.8L, ISF 2.8L AFTERTREATMENT HOSE 2014-2021: OEM 4329753
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 4329753 ( OEM Part Number 4329753 ).This part is primarily made for a Cummins QSF 2.8L, ISF 2.8L, production years 2014-2021, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
| Primary OEM | 4329753 |
| Additional OEM | 4329753, A046F437 |
ADDITIONAL DETAILS
| CONDITION | Genuine New |
| UPC / Barcode | 00840490556911 |
| 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 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"
Designed to support reliable exhaust aftertreatment system operation, the Cummins QSF 2.8L / ISF 2.8L Aftertreatment Hose (2014–2021) OEM 4329753 is an essential component for maintaining proper exhaust gas flow. Manufactured to meet original equipment specifications, it ensures precise compatibility with Cummins QSF 2.8L and ISF 2.8L engines across the specified model years. This aftertreatment hose provides a secure connection between emissions system components, helping maintain proper exhaust routing and system integrity under demanding operating conditions. Constructed from durable, high-quality materials, it is engineered to withstand high temperatures, pressure, and continuous exposure to harsh diesel environments. Ideal for technicians, fleet operators, and maintenance professionals, this OEM aftertreatment hose helps maintain dependable emissions system function and long-term reliability.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2014 | Cummins | QSF 2.8L | ISF 2.8L | |||
| 2015 | Cummins | QSF 2.8L | ISF 2.8L | |||
| 2016 | Cummins | QSF 2.8L | ISF 2.8L | |||
| 2017 | Cummins | QSF 2.8L | ISF 2.8L | |||
| 2018 | Cummins | QSF 2.8L | ISF 2.8L | |||
| 2019 | Cummins | QSF 2.8L | ISF 2.8L | |||
| 2020 | Cummins | QSF 2.8L | ISF 2.8L | |||
| 2021 | Cummins | QSF 2.8L | ISF 2.8L | |||
PEOPLE ALSO ASKS | BLOG(S)
The Cummins QSF 2.8L, ISF 2.8L Aftertreatment Hose (OEM 4329753) is an essential component of the engine's emissions system, designed for 2014–2021 Cummins QSF 2.8L and ISF 2.8L engines. This hose provides a secure pathway between key aftertreatment components, allowing gases or system fluids to move efficiently throughout the emissions-control system. Proper routing and sealing are critical to maintaining the performance of the engine's aftertreatment system.
Although it may appear to be a simple hose, it plays an important role in supporting the reliable operation of the entire emissions system.
What Does the Cummins 4329753 Aftertreatment Hose Do?
- Connects aftertreatment components
- The hose provides a secure connection between compatible emissions system components, helping maintain proper system operation.
- Maintains a sealed pathway
- It helps prevent leaks that could affect the efficiency of the aftertreatment system or trigger emissions-related issues.
- Supports proper system flow
- By allowing gases or system media to move efficiently, the hose contributes to consistent aftertreatment performance.
- Withstands harsh operating conditions
- Designed for heavy-duty applications, it is built to tolerate high temperatures, vibration, and continuous engine operation.
- Works with the complete emissions system
- The hose functions alongside components such as the DOC, DPF, SCR system, sensors, and related aftertreatment hardware to support reliable emissions control.
- Helps maintain emissions compliance
- A properly functioning aftertreatment hose contributes to the overall integrity of the emissions system and helps support compliance with diesel emissions standards.
The Cummins QSF 2.8L, ISF 2.8L Aftertreatment Hose (OEM 4329753) is more than just a connecting hose—it's an important part of the aftertreatment system that helps maintain secure connections, proper flow, and reliable operation. Keeping this component in good condition supports the performance of the complete emissions system and contributes to the long-term reliability of compatible Cummins QSF 2.8L and ISF 2.8L engines.
An aftertreatment hose is designed to withstand high temperatures, vibration, and harsh operating conditions, but it will eventually wear out over time. Under normal operating conditions, an aftertreatment hose can often last 100,000 to 200,000 miles or more, depending on the vehicle, operating environment, and maintenance practices.
Rather than replacing it at a specific mileage, it's best to inspect the hose regularly and replace it when signs of wear or damage appear.
Several factors can affect the lifespan of an aftertreatment hose:
- High operating temperatures
- Constant exposure to extreme exhaust temperatures can cause the hose material to harden, crack, or deteriorate over time.
- Engine vibration
- Continuous vibration can weaken the hose and its connections, increasing the likelihood of leaks or premature failure.
- Road and environmental conditions
- Dirt, moisture, road salt, and other contaminants can accelerate wear and corrosion around hose fittings and clamps.
- Improper installation
- A hose that is twisted, bent excessively, or improperly secured may wear out faster than expected.
- Regular maintenance
- Routine inspections can help identify cracks, abrasion, loose clamps, or leaks before they become major problems.
- Condition of the aftertreatment system
- Excessive heat, exhaust leaks, or failing emissions components can place additional stress on the hose and shorten its service life.
Common signs that an aftertreatment hose may need replacement include visible cracks, swelling, brittleness, loose or damaged connections, exhaust leaks, recurring emissions-related fault codes, or signs of heat damage.
Performing routine inspections and replacing a worn aftertreatment hose at the first signs of deterioration can help maintain proper exhaust flow, protect the aftertreatment system, and reduce the risk of unexpected downtime.
The 4329753 hose is designed for Cummins QSF 2.8L and ISF 2.8L engines used in industrial, agricultural, construction, and light commercial applications manufactured between 2014 and 2021.
Its primary function is to provide a secure passage for air within the aftertreatment system, helping maintain proper airflow between connected emissions components.
The hose is installed within the engine's aftertreatment system, connecting designated air passages according to the original Cummins emissions system design.
Proper airflow helps ensure that the aftertreatment system operates as intended, allowing emissions-control components to function efficiently under various operating conditions.
Cummins Aftertreatment Hoses
