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Mack MP7, MP8 DEF Doser Injector 2011-2014: OEM 21503939

MACK MP7, MP8 DEF DOSER INJECTOR 2011-2014: OEM 21503939

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$755.00

CORE CHARGE:

$125.00
iCORE DISCLAIMER: The CORE charge is a 30 day hold and will not be processed as long as the CORE is returned within 30 days. If you do not have a CORE or fail to return the CORE within 30 days, the CORE charge hold amount will be processed at that time.

AVAILABILITY IN STOCK
OEM NUMBER21503939
PART TYPEDEF Doser Injector
BRANDTamerx Diesel Products
ENGINE MAKEMack
ENGINE TYPEMP7 ,MP8
YEAR2011-2014
PART NUMBER21593939TX-2

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx DEF Doser Injector, Tamerx part number 21593939TX-2 ( OEM Part Number 21503939 ). All parts are proudly remanufactured in the U.S.A. to the highest of OEM standards, and improvements are often applied to the original design in the remanufacturing process. This part is primarily made for a Mack MP7, MP8, production years 2011-2014, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM21503939
Additional OEM20805774, 20920745, 20996384, 20996385, 21082971, 21089234, 21503939

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode086547500944
WEIGHT3.00 LBS

SHIPPING OPTIONS

Ship Weight : 3.00 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.

The customer, or parts buyer, is responsible for any shipping costs associated with core returns unless otherwise specified in the product listing/detail page. Tamerx Diesel Products offers prepaid UPS shipping labels (SKU numbers UPS-CR1 and UPS-CR2) for use in returning your core that are available for purchase on our website during your shopping/order process.

The shipping label you will need to use for the core return is dependent upon what part you are purchasing. UPS-CR1 is good for cores weighing up to 20 pounds. UPS-CR2 is appropriate for shipping cores weighing 21 pounds or more. You must include enough information with the core return that clearly identifies it as a.) a Core Return, and b.) contains enough information we can use to clearly associate the core return with your order. Including a copy of the invoice or packing slip that came with the original shipment, clearly marked "Core Return", is ideal. Alternately, you can include a note marked as "Core Return" that includes your order number, full name and address, and phone number or other contact information. Failure to include this information with your returned core will most likely delay any due core credit being issued and/or delay any applicable warranty activation. Core returns need to be for the exact part purchased and cannot be damaged. Substituting another part in place of the part you have purchased is not acceptable.

All fluids must be drained.

If you have purchased a set or a parts package, you will need to return cores for all components of the set. For example, if you have purchaed a high pressure oil pump with an IPR valve, you will need to return both HPOP and IPR valve cores to receive proper credit. If you have purchased an EGR cooler/EGR valve package, your core return must consist of an EGR cooler core and an EGR valve core, or core credit will not be given.

Core Charges are often mandated by state legislature, and, as such, the actual core charge and taxes on the charge may vary depending on the state in which you buy your part. The Tamerx Diesel Products core charge presented to you online today with your item is representative of the most common core charge.


FITMENT CHART

YEARMAKEENGINE(S)
2011Mack MP7 ,MP8
2012Mack MP7 ,MP8
2013Mack MP7 ,MP8
2014Mack MP7 ,MP8

PEOPLE ALSO ASKS | BLOG(S)

For Mack MP7 and MP8 engines from 2011 to 2014, maintaining optimal emission control is crucial for both performance and environmental compliance. The Mack MP7, MP8 DEF Doser Injector, OEM 21503939, plays a vital role in reducing emissions and ensuring your engine runs efficiently. In this blog, we will focus on how this DEF doser injector improves emission control and engine performance.

The Role of the DEF Doser Injector

The Diesel Exhaust Fluid (DEF) doser injector is a key component in your engine’s Selective Catalytic Reduction (SCR) system. It injects DEF into the exhaust stream to reduce nitrogen oxide (NOx) emissions. Here are some key points about the function and benefits of the DEF doser injector:

  • Accurate DEF Injection
    • The DEF doser injector ensures precise dosing of DEF into the exhaust stream, which is crucial for effective NOx reduction.
  • Improved Emission Control
    •  By reducing NOx emissions, the injector helps your engine comply with stringent environmental regulations.
  • Enhanced Engine Efficiency
    •  Proper DEF dosing leads to more efficient engine operation, improving overall fuel economy.
  • Durability and Reliability
    •  High-quality injectors, like the OEM 21503939, are designed to withstand the harsh conditions of the exhaust system, ensuring long-term reliability.
  • Reduced Environmental Impact
    •  Effective NOx reduction contributes to a cleaner environment, making your engine more eco-friendly.

Benefits of Using the OEM 21503939 DEF Doser Injector

Choosing the Mack MP7, MP8 DEF Doser Injector, OEM 21503939, offers several advantages:

  • Exact Fit and Compatibility
    • As an original equipment manufacturer (OEM) part, this DEF doser injector guarantees a perfect fit and seamless integration with your Mack MP7 or MP8 engine.
  • High-Quality Standards
    • OEM parts are manufactured to meet stringent quality standards, ensuring reliability and durability.
  • Optimal Performance
    • The OEM 21503939 DEF doser injector is designed to provide optimal performance, enhancing the overall efficiency and emission control of your engine.
  • Warranty and Support
    • Purchasing an OEM DEF doser injector provides the peace of mind that comes with warranty coverage and support from Mack.

Ensuring effective emission control is essential for the performance and longevity of your Mack MP7 or MP8 engine. The Mack MP7, MP8 DEF Doser Injector, OEM 21503939, plays a crucial role in reducing NOx emissions and enhancing engine efficiency. Invest in the OEM 21503939 DEF doser injector to keep your engine running smoothly and in compliance with environmental regulations. Optimize your engine’s emission control and performance with the right DEF doser injector.

The Diesel Exhaust Fluid (DEF) doser injector is a critical component in modern diesel engines, helping to reduce harmful emissions by injecting DEF into the exhaust stream. When this injector fails, it can lead to increased emissions and engine performance issues. In this blog, we will explore the common causes of DEF doser injector failure and how to prevent them.

A DEF doser injector is essential for maintaining your diesel engine's emission standards and overall performance. When this component fails, it can result in increased emissions, reduced fuel efficiency, and potential engine damage. Understanding the common causes of DEF doser injector failure can help you take preventive measures to ensure your engine operates smoothly and meets environmental regulations.

  • Contaminated DEF Fluid
    • One of the primary causes of DEF doser injector failure is the use of contaminated DEF fluid. Impurities and debris in the DEF can clog the injector, preventing it from functioning correctly. Always use high-quality DEF and store it properly to avoid contamination.
  • Crystallization
    •  DEF is a mixture of urea and deionized water, and it can crystallize if exposed to air or extreme temperatures. Crystallized DEF can block the injector nozzle, leading to failure. Regular maintenance and proper storage can prevent crystallization issues.
  • Blocked Injector Nozzle
    • Over time, deposits can build up on the injector nozzle, blocking the flow of DEF. Regular cleaning and maintenance can help prevent these deposits from causing injector failure.
  • Electrical Issues
    • The DEF doser injector relies on electrical signals to operate. Faulty wiring, connectors, or electronic control units can disrupt these signals, leading to injector failure. Regularly inspect and maintain the electrical components of the DEF system.
  • Inadequate Maintenance
    • Neglecting regular maintenance can lead to various issues with the DEF doser injector. Regularly checking and servicing the DEF system can help prevent injector failure and ensure optimal performance.
  • Exposure to Extreme Temperatures
    • DEF can freeze at low temperatures and degrade at high temperatures. Extreme temperature fluctuations can damage the injector and other components of the DEF system. Properly insulating and maintaining the DEF system can mitigate this risk.
  • Wear and Tear
    •  Like any mechanical component, the DEF doser injector can wear out over time due to continuous use. Regular inspections can help identify early signs of wear and allow for timely replacement before complete failure occurs.

In summary, several factors can cause a DEF doser injector to fail, including contaminated DEF fluid, crystallization, blocked injector nozzles, electrical issues, inadequate maintenance, exposure to extreme temperatures, and general wear and tear. Understanding these causes and taking preventive measures, such as using high-quality DEF, performing regular maintenance, and protecting the system from extreme temperatures, can help ensure the longevity and efficiency of your DEF doser injector. By addressing these issues proactively, you can maintain optimal engine performance and comply with emission standards. If you suspect any problems with your DEF doser injector, consult a professional mechanic to diagnose and resolve the issue effectively.

Mack DEF Doser Injectors