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Mack MP7 Fuel Injector 2015-2018: OEM 85020426 ( Set of 6 )

MACK MP7 FUEL INJECTOR 2015-2018: OEM 85020426 ( SET OF 6 )

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,495.00

-
+

CORE CHARGE:

$1,500.00
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 NUMBER 85020426
PART TYPE Fuel Injector
BRAND Tamerx Diesel Products
ENGINE MAKE Mack
ENGINE TYPE MP7
YEAR 2015-2018
PART NUMBER 85020426RM-2-SET
ADDITIONAL NOTES Contents: Injector, Oring Kit, Injector Cup, Hold Down Bolt

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Fuel Injector, Tamerx part number 85020426RM-2-SET ( OEM Part Number 85020426 ). 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, production years 2015-2018, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: Contents: Injector, Oring Kit, Injector Cup, Hold Down Bolt

OEM NUMBERS

Primary OEM 85020426
Additional OEM 85020426

ADDITIONAL DETAILS

CONDITION Remanufactured
UPC / Barcode
WEIGHT 15.60 LBS

SHIPPING OPTIONS

Ship Weight : 15.60 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.


This OEM 85020426 fuel injector set is specifically engineered for 2015–2018 Mack MP7 diesel engines. With six injectors included, this set ensures consistent fuel delivery that meets factory standards for precision and dependability. Each unit is manufactured to work seamlessly within the MP7’s system, helping support efficient engine function and maintaining compliance with emissions regulations. Designed to match original Mack specifications, this injector set is ideal for professional repairs or scheduled maintenance. Keep your fleet or heavy-duty truck operating as intended with components built for long-term use and accuracy.

FITMENT CHART

YEAR MAKE ENGINE(S)
2015 Mack MP7
2016 Mack MP7
2017 Mack MP7
2018 Mack MP7

PEOPLE ALSO ASKS | BLOG(S)

The fuel injectors in the Mack MP7 engine are crucial components for delivering the right amount of fuel into the combustion chamber, ensuring efficient engine performance and fuel economy. The Mack MP7 Fuel Injector (OEM 85020426) is designed to meet the specific demands of heavy-duty operations, ensuring reliable fuel delivery and smooth engine operation. Maintaining your fuel injectors is essential for preventing issues such as poor fuel efficiency and engine misfires.

Key Functions of the Mack MP7 Fuel Injector

  • Precise Fuel Injection
    •  Delivers fuel in a controlled manner to ensure optimal combustion and engine performance.
  • Improves Fuel Efficiency
    • Proper fuel atomization reduces fuel consumption, helping to lower operational costs.
  • Reduces Emissions
    • Ensures cleaner combustion, reducing harmful emissions and maintaining compliance with environmental standards.
  • Prevents Engine Issues
    • Minimizes the risk of engine misfires, rough idling, and poor performance by delivering fuel at the right pressure and time.

Maintenance Tips for Fuel Injectors

  • Inspect for Leaks
    • Regularly check for signs of fuel leakage around the injectors, which can impact performance and fuel economy.
  • Monitor Engine Performance
    •  If you notice a drop in fuel efficiency or engine power, it may indicate an issue with the fuel injectors.
  • Clean the Fuel Injectors
    • Over time, debris can build up in the injectors. Periodic cleaning helps maintain optimal performance.
  • Replace When Necessary
    • If the injectors show signs of wear or damage, replacing them with the OEM 85020426 will restore fuel efficiency and engine reliability.

The Mack MP7 Fuel Injector (OEM 85020426) is an essential component for maintaining efficient fuel delivery and overall engine performance. Regular inspections and timely replacements are vital for ensuring optimal fuel combustion, reduced emissions, and fuel efficiency. TamerX Diesel Parts provides high-quality injectors and other essential components to keep your engine operating smoothly and efficiently.

Fuel injectors are vital components that ensure your engine receives the correct amount of fuel for efficient combustion. When a fuel injector goes bad, it can lead to numerous engine performance issues. Recognizing the signs of a failing fuel injector early on can help you avoid costly repairs and maintain optimal vehicle performance.

Effects of a Bad Fuel Injector:

  • Engine Misfires

    •  A faulty fuel injector can lead to engine misfires. This occurs when the injector doesn’t supply enough fuel to the engine, resulting in incomplete combustion and rough performance.

  • Poor Fuel Efficiency

    •  If a fuel injector isn’t working properly, it can disrupt the air-fuel ratio, causing your engine to burn more fuel than needed. This results in reduced fuel efficiency and increased fuel costs.

  • Rough Idling

    • A bad fuel injector can cause the engine to idle roughly or inconsistently. You may notice shaking or stalling when your vehicle is at a stop or idling.

  • Check Engine Light

    • A malfunctioning fuel injector often triggers the check engine light. The vehicle’s onboard diagnostics will detect irregularities in fuel delivery and signal a warning.

  • Increased Emissions

    •  A failing injector can cause unburnt fuel to exit through the exhaust system, leading to higher emissions. This can cause your vehicle to fail emissions tests.

  • Hard Starting

    • A bad fuel injector can make it difficult to start your vehicle. The engine may crank but not start easily, or it may take multiple attempts to get it running.

When a fuel injector goes bad, it can cause engine misfires, poor fuel efficiency, rough idling, and even increased emissions. If you notice any of these symptoms, it’s important to have your fuel injectors inspected and replaced if necessary. Addressing the issue early will help maintain your vehicle’s performance, fuel efficiency, and prevent costly repairs down the road. Regular maintenance is key to keeping your fuel injectors and engine running smoothly.

No, the 85020426 injectors are only intended for use with 2015–2018 MP7 engines.

Over-torquing, improper seating, and failing to replace seals are common issues that can lead to leaks or misfires.

Replacing worn injectors with correct OEM units can reduce diesel knock caused by uneven fuel spray patterns.

After installation, verify ECM recognition, check for leaks, and monitor idle quality and exhaust conditions.

Mack Fuel Injectors