Mack MP7, MP8 7th Injector : OEM 21407621
MACK MP7, MP8 7TH INJECTOR : OEM 21407621
ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY
WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured, Dorman 7th Injector, Dorman part number 21407621TX-2 ( OEM Part Number 21407621 ). This part is primarily made for a Mack MP7, MP8, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
| Primary OEM | 21407621 |
| Additional OEM | 21407621 |
ADDITIONAL DETAILS
| CONDITION | New |
| UPC / Barcode | 086547500838 |
| 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"
PEOPLE ALSO ASKS | BLOG(S)
The 7th injector, OEM 21407621, plays a critical role in the emissions system of Mack MP7 and MP8 engines. This component is specifically designed to introduce fuel into the exhaust stream, a process crucial for maintaining optimal engine function and adhering to emissions standards.
Here’s how it works:
- Fuel Introduction
- The 7th injector introduces a small amount of diesel fuel into the exhaust system.
- Emissions Control
- This fuel is then combusted in the diesel particulate filter (DPF) to help burn off soot, reducing harmful emissions.
- Temperature Regulation
- By managing the temperature within the exhaust system, the injector ensures the DPF functions efficiently.
The 7th injector's operation is integral to the overall health of the engine's emissions system, helping to prevent clogging in the DPF and ensuring the engine meets environmental regulations. Regular maintenance of this component is essential to avoid issues like increased emissions or engine problems.
For Mack MP7 and MP8 engines, keeping the 7th injector in good condition ensures that your vehicle runs cleanly and efficiently, making it a vital part of your diesel engine's emissions system.
The 7th injector, often referred to as the dosing injector, plays a crucial role in the aftertreatment system of diesel engines. Its primary function is to introduce fuel into the exhaust stream, helping to reduce emissions. When the 7th injector fails, it can lead to several noticeable issues that may affect your vehicle's overall durability.
Common Symptoms of a Failed 7th Injector:
- Check Engine Light
- One of the most common signs is the illumination of the check engine light. This can be triggered by the engine control module detecting irregularities in the exhaust system.
- Poor Fuel Economy
- A malfunctioning 7th injector can cause a noticeable decrease in fuel efficiency, as the engine may struggle to maintain the correct fuel-to-air ratio.
- Increased Emissions
- Failure in the 7th injector can lead to an increase in harmful emissions, potentially causing the vehicle to fail emissions tests.
- Rough Idling or Stalling
- You may experience rough idling or even stalling if the 7th injector is not functioning properly.
Addressing these symptoms early can prevent more severe damage to the engine and exhaust system. If you suspect an issue with your 7th injector, it's essential to have it inspected and replaced if necessary.
Mack 7th Injectors
