
Cummins ISL-280 Doser DEF Pump 2017-2021: OEM N82892
CUMMINS ISL-280 DOSER DEF PUMP 2017-2021: OEM N82892

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a New, Tamerx Doser DEF Pump, Tamerx part number N82892TX ( OEM Part Number N82892 ).This part is primarily made for a Cummins ISL-280, production years 2017-2021, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
Additional Notes: NON Air Asstisted, 24 Volt System, DEF Supply Module
OEM NUMBERS
| Primary OEM | N82892 |
| Additional OEM | N82892 |
ADDITIONAL DETAILS
| CONDITION | New |
| UPC / Barcode | 00840490542198 |
| WEIGHT | 8.00 LBS |
SHIPPING OPTIONS
Ship Weight : 8.00 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 for reliable DEF system operation, the Cummins ISL-280 Doser DEF Pump 2017–2021, OEM Part Number N82892, plays a key role in delivering Diesel Exhaust Fluid from the tank to the aftertreatment system. Engineered for compatibility with select Cummins ISL-280 applications, this pump helps maintain proper DEF flow and pressure for consistent emissions control. Built to meet OEM specifications, it offers accurate fitment and dependable durability in demanding work environments. A failing DEF pump can result in warning lights, fault codes, or improper fluid delivery, making timely replacement important for maintaining compliance and drivability. Tamerx Diesel Products LLC provides quality diesel components you can rely on for consistent and efficient engine operation.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2017 | Cummins | ISL-280 | ||||
| 2018 | Cummins | ISL-280 | ||||
| 2019 | Cummins | ISL-280 | ||||
| 2020 | Cummins | ISL-280 | ||||
| 2021 | Cummins | ISL-280 | ||||
PEOPLE ALSO ASKS | BLOG(S)
Reliable DEF delivery is essential for modern diesel emissions systems, and the Cummins ISL-280 Doser DEF Pump OEM N82892 plays a critical role in that process. Designed for 2017–2021 Cummins ISL-280 applications, this pump ensures that Diesel Exhaust Fluid (DEF) is supplied accurately to the aftertreatment system.
The primary function of the DEF pump is to move DEF from the storage tank to the DEF doser injector at the correct pressure and flow rate. Without consistent fluid delivery, the Selective Catalytic Reduction (SCR) system cannot properly reduce nitrogen oxide (NOx) emissions.
The Cummins ISL-280 Doser DEF Pump is important because it:
- Transfers DEF from the tank to the doser injector
- Maintains proper pressure within the DEF lines
- Works in coordination with the engine control module (ECM)
- Supports accurate DEF dosing into the exhaust stream
- Helps maintain emissions compliance
The pump operates in response to commands from the ECM. When exhaust conditions require DEF injection, the control system activates the pump to deliver the precise amount needed. This ensures the SCR catalyst receives enough DEF to convert NOx into nitrogen and water vapor.
If the DEF pump fails or delivers inconsistent flow, it can trigger warning lights, reduced engine operation modes, or emissions-related fault codes.
The OEM N82892 DEF pump is engineered specifically for Cummins ISL-280 engines, ensuring proper integration with factory DEF lines, sensors, and control systems. Its reliable operation is essential for maintaining clean exhaust output and dependable engine performance.
The DEF doser pump supplies Diesel Exhaust Fluid to the injector at the correct pressure. When it begins to fail, the SCR system cannot function properly, which may lead to warning lights or speed restrictions.
The first step is recognizing the symptoms.
Common signs of a failing DEF doser pump include:
- DEF or check engine warning light
- SCR system fault codes
- Reduced engine operation or countdown messages
- Low DEF pressure codes
- Unusual pump noise
- Failed priming or pressure tests
If you notice these issues, avoid ignoring them. Continued operation with a malfunctioning DEF pump can lead to further aftertreatment problems.
Next, schedule a professional diagnostic inspection. A technician will typically:
- Scan for SCR-related fault codes
- Test DEF pump pressure output
- Inspect electrical connectors and wiring
- Check for DEF crystallization or contamination
In some cases, clogged lines or crystallized DEF can restrict flow and mimic pump failure. If contamination is present, the system may need to be flushed.
If testing confirms the pump cannot maintain proper pressure, replacement is usually necessary.
It is also important to address the root cause, such as contaminated DEF or electrical issues, to prevent repeat failure and protect the entire emissions system.
After installing the Cummins N82892, verifying proper operation with a diagnostic tool is recommended to confirm system function.
Yes, a malfunctioning Cummins N82892 DEF Pump can trigger emissions dosing fault codes and system alerts.
Using the correct OEM N82892 helps ensure proper DEF delivery for accurate system readings and emissions regulation.
The Cummins N82892 Doser DEF Pump delivers Diesel Exhaust Fluid to the dosing system to support emissions regulation.











