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Paccar MX11 Exhaust Back Pressure Valve 2022-2024: OEM 2458403PE

PACCAR MX11 EXHAUST BACK PRESSURE VALVE 2022-2024: OEM 2458403PE

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,950.00

CORE CHARGE:

$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 NUMBER2458403PE
PART TYPEExhaust Back Pressure Valve
BRANDTamerx Diesel Products
ENGINE MAKEPaccar
ENGINE TYPEMX11
YEAR2022-2024
PART NUMBER2458403RM
APPLICATION NOTESEPA21

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Exhaust Back Pressure Valve, Tamerx part number 2458403RM ( OEM Part Number 2458403PE ). 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 Paccar MX11, production years 2022-2024, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM2458403PE
Additional OEM2458403PE

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490547704
WEIGHT33.00 LBS

SHIPPING OPTIONS

Ship Weight : 33.00 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.


Keep your exhaust system operating as intended with the Paccar MX11 Exhaust Back Pressure Valve 2022–2024, OEM Part Number 2458403PE. This precision-engineered valve helps regulate exhaust back pressure to support proper aftertreatment function and overall engine operation. Built to meet OEM specifications, it ensures accurate fitment and reliable durability for select Paccar MX11 applications. A malfunctioning back pressure valve can lead to increased exhaust restriction, fault codes, or unusual system behavior, making timely replacement important. Tamerx Diesel Products LLC supplies quality diesel components you can rely on to help maintain smooth and consistent operation.

FITMENT CHART

YEARMAKEENGINE(S)
2022Paccar MX11
2023Paccar MX11
2024Paccar MX11

PEOPLE ALSO ASKS | BLOG(S)

The Paccar MX11 Exhaust Back Pressure Valve (EBPV) OEM 2458403PE is a key component in the exhaust aftertreatment system of MX11 diesel engines used from 2022 to 2024. Its importance stems from its role in managing exhaust flow and supporting proper operation of emissions components like the DPF (Diesel Particulate Filter) and SCR (Selective Catalytic Reduction) systems.

Instead of simply being a passive pipe or opening, the back pressure valve actively helps regulate how exhaust gases flow through the aftertreatment system. This can be especially important during regeneration events and when engines operate under a variety of conditions.

The Paccar MX11 Exhaust Back Pressure Valve is important because it:

  • Helps maintain optimal exhaust back pressure for proper DPF regeneration
  • Assists in raising exhaust temperatures when needed
  • Supports consistent flow through SCR and NOx control systems
  • Prevents excessive flow that could reduce aftertreatment efficiency
  • Works with sensors and the engine control module to balance system performance

Exhaust back pressure influences how heat and flow interact with aftertreatment components. For example, adequate pressure can improve soot oxidation and help the DPF reach temperatures needed to burn off accumulated soot. Improper pressure can reduce regeneration efficiency and trigger diagnostic warnings.

The OEM 2458403PE valve is engineered to fit precisely within the MX11 exhaust system and operate in sync with the engine control module (ECM). When functioning properly, it contributes to balanced exhaust flow, improved emissions control, and reliable engine operation in demanding duty cycles.

In summary, the Paccar MX11 Exhaust Back Pressure Valve OEM 2458403PE is essential for managing exhaust dynamics and supporting aftertreatment performance, which helps keep emissions within regulatory limits and maintains overall system efficiency.

The exhaust back pressure valve helps regulate exhaust flow and engine temperature, especially during cold starts. When it begins to fail, you may notice changes in engine operation or unusual exhaust behavior.

The first step is identifying the symptoms.

Common signs of a failing exhaust back pressure valve include:

  • Check engine light
  • Poor acceleration
  • Excessive exhaust restriction
  • Unusual exhaust noise
  • Engine running rough during warm-up
  • Fault codes related to exhaust pressure

If the valve becomes stuck closed, it can create too much back pressure, reducing engine efficiency. If it is stuck open, the engine may take longer to reach proper operating temperature.

Next, schedule a professional inspection. A technician will typically:

  • Scan for diagnostic trouble codes
  • Test valve movement and actuator operation
  • Inspect for carbon buildup
  • Check wiring and electrical connections

In some cases, carbon accumulation can cause the valve to stick. Cleaning may restore proper function if internal components are still intact.

However, if the actuator motor or internal mechanism has failed, replacement is usually necessary.

Addressing the issue promptly helps prevent additional exhaust system strain and maintains proper engine temperature control.

The Paccar 2458403PE Exhaust Back Pressure Valve regulates exhaust back pressure to help maintain correct exhaust flow in the engine’s system.

The Paccar 2458403PE Exhaust Back Pressure Valve is installed in the exhaust system, typically near the turbocharger where it can control exhaust pressure.

By regulating back pressure, the Paccar 2458403PE helps support proper exhaust treatment and emissions system operation.

Yes, a malfunctioning Exhaust Back Pressure Valve can lead to diagnostic alerts related to exhaust pressure and emissions control.

Paccar Exhaust Back Pressure Valves