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Mack MP8 EGR Valve 2022-2025: OEM 23917401

MACK MP8 EGR VALVE 2022-2025: OEM 23917401

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,895.00

CORE CHARGE:

$1,200.00
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 NUMBER23917401
PART TYPEEGR Valve
BRANDTamerx Diesel Products
ENGINE MAKEMack
ENGINE TYPEMP8
YEAR2022-2025
PART NUMBER23917401RM-2

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx EGR Valve, Tamerx part number 23917401RM-2 ( OEM Part Number 23917401 ). 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 MP8, production years 2022-2025, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM23917401
Additional OEM23761312, 23917401, 24654055

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode086547502177
WEIGHT18.00 LBS

SHIPPING OPTIONS

Ship Weight : 18.00 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.


The Mack MP8 EGR Valve (OEM 23917401) is designed for 2022-2025 models, playing a crucial role in controlling exhaust gas recirculation to reduce emissions. By directing a portion of exhaust gases back into the intake system, this valve helps lower nitrogen oxide levels while maintaining efficient engine performance. Manufactured to OEM specifications, it ensures reliable operation and durability under demanding conditions. A properly functioning EGR valve helps prevent issues such as rough idling, power loss, and excessive emissions. Timely replacement of a failing valve can improve fuel efficiency, ensure emissions compliance, and support long-term engine reliability.

FITMENT CHART

YEARMAKEENGINE(S)
2022Mack MP8
2023Mack MP8
2024Mack MP8
2025Mack MP8

PEOPLE ALSO ASKS | BLOG(S)

The Exhaust Gas Recirculation (EGR) valve is a critical component in modern diesel engines, helping to reduce harmful emissions by recirculating a portion of the exhaust gases back into the combustion process. The Mack MP8 EGR Valve, OEM 23917401, is designed specifically for Mack MP8 engines from 2019 to 2023, ensuring optimal emissions control and engine efficiency. Replacing a malfunctioning EGR valve with this OEM part is essential for maintaining compliance with emissions standards and improving overall engine performance.

  • Reduces NOx Emissions:

    • The Mack MP8 EGR Valve, OEM 23917401, helps reduce nitrogen oxide (NOx) emissions by lowering the combustion temperature. This process is key to meeting environmental regulations and reducing the environmental impact of your engine.

  • Prevents Engine Overheating

    • By reintroducing cooler exhaust gases into the combustion chamber, the EGR valve helps to lower the engine’s overall temperature, preventing overheating and reducing wear on engine components.

  • OEM Quality and Fit

    • As an OEM part, the 23917401 EGR valve is built to meet Mack's exact specifications. This ensures a perfect fit for MP8 engines from 2019 to 2023, providing reliable performance and seamless integration into the exhaust system.

  • Improves Fuel Efficiency

    •  A well-functioning EGR valve optimizes the combustion process, leading to more efficient fuel usage. This can result in better fuel economy, reducing operating costs over time.

For Mack MP8 engines from 2019 to 2023, maintaining a properly functioning EGR system is essential for controlling emissions and ensuring engine efficiency. The Mack MP8 EGR Valve, OEM 23917401, plays a crucial role in reducing NOx emissions, preventing overheating, and improving fuel efficiency. At TamerX Diesel Parts, we offer high-quality OEM parts to help keep your engine running efficiently and in compliance with environmental standards for years to come.

The Exhaust Gas Recirculation (EGR) valve plays a key role in reducing vehicle emissions by recirculating exhaust gases back into the engine to lower combustion temperatures. When the EGR valve fails, it can lead to a variety of performance issues that impact both your engine's efficiency and emissions levels. Knowing the symptoms of a bad EGR valve can help you identify and address the problem before it causes more serious damage.

  • Rough Idling
    • One of the first signs of a failing EGR valve is a rough or uneven idle. The engine may vibrate excessively, indicating improper recirculation of exhaust gases.
  • Engine Misfires
    • If the EGR valve is stuck open, too much exhaust gas can enter the combustion chamber, leading to misfires, hesitation during acceleration, and poor overall performance.
  • Decreased Fuel Efficiency
    • A malfunctioning EGR valve can cause the engine to burn more fuel than necessary, leading to poor gas mileage and increased fuel costs.
  • Check Engine Light
    • A bad EGR valve can trigger the check engine light, alerting you to potential issues with the exhaust gas recirculation system.
  • Increased Emissions
    • A faulty EGR valve can cause incomplete combustion, resulting in higher emissions. This can also lead to a failed emissions test.
  • Engine Stalling
    • In some cases, a stuck or malfunctioning EGR valve can cause the engine to stall, especially at idle or during slow speeds.
  • Excessive Exhaust Smoke
    • If the EGR valve is stuck open or closed, it can lead to excessive smoke from the exhaust, indicating improper exhaust gas flow.

A bad EGR valve can cause various performance problems, from rough idling to increased emissions and decreased fuel efficiency. If you notice any of these symptoms, it's important to have the EGR valve inspected and replaced if necessary. Addressing the issue early can improve your engine’s performance, reduce emissions, and help avoid costly repairs in the future. Regular maintenance is key to keeping the EGR system functioning properly.

Common causes include carbon buildup leading to valve sticking, electrical issues affecting valve operation, and wear over time due to high-temperature exposure.

A faulty EGR valve can lead to increased soot production, which may cause the DPF to clog more quickly, necessitating more frequent regenerations.

Regular maintenance, including timely cleaning of the EGR system to prevent soot buildup, using high-quality fuel, and ensuring the engine operates within optimal temperature ranges, can help prevent EGR valve issues.

The lifespan varies based on operating conditions and maintenance practices, but with proper care, an EGR valve can function effectively for several hundred thousand miles.

Mack EGR Valves

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