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Paccar MX13 Back Pressure Valve 2010-2013: OEM 1840165PE

PACCAR MX13 BACK PRESSURE VALVE 2010-2013: OEM 1840165PE

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,895.00

CORE CHARGE:

$1,000.00
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 NUMBER1840165PE
PART TYPEBack Pressure Valve
BRANDTamerx Diesel Products
ENGINE MAKEPaccar
ENGINE TYPEMX13
YEAR2010-2013
PART NUMBER1840165RM
APPLICATION NOTESEPA10

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Back Pressure Valve, Tamerx part number 1840165RM ( OEM Part Number 1840165PE ). 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 MX13, production years 2010-2013, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM1840165PE
Additional OEM1840165PE

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490543126
WEIGHT22.00 LBS

SHIPPING OPTIONS

Ship Weight : 22.00 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.


Improve your PACCAR MX-13’s exhaust efficiency with this OEM 1840165PE back pressure valve for 2010–2013 models. Engineered to regulate exhaust back pressure precisely, it helps optimize turbo response, protect the engine, and maintain peak performance. With a direct-fit design and durable construction, it’s a reliable upgrade to keep your MX-13 running strong and efficient under demanding conditions.

FITMENT CHART

YEARMAKEENGINE(S)
2010Paccar MX13
2011Paccar MX13
2012Paccar MX13
2013Paccar MX13

PEOPLE ALSO ASKS | BLOG(S)

Modern diesel engines depend on precise control of exhaust flow and back-pressure to run cleanly and efficiently — and the Paccar MX13 Back Pressure Valve (2010–2013, OEM 1840165PE) is a key part of that process. Designed specifically for Paccar MX13 engines from model years 2010 to 2013, this back pressure valve helps regulate exhaust resistance, contributing to optimal turbocharger performance, emissions control, and overall engine responsiveness. Using the correct OEM-spec valve ensures proper fitment, reliable operation, and long-term engine health.

This back pressure valve plays an important role in exhaust and engine performance — here’s why it matters:

  • Regulates Exhaust Back Pressure – Adjusts the level of resistance in the exhaust system to support efficient turbocharger and engine operation.

  • Supports Turbocharger Response – Proper back-pressure balance helps the turbocharger spool accurately, improving acceleration responsiveness and overall efficiency.

  • Enhances Emissions Control – By managing exhaust back pressure, the valve supports emissions systems that rely on controlled flow for proper operation.

  • OEM-Grade Fit and Durability – The OEM 1840165PE valve meets original factory specifications, ensuring correct installation, reliable performance, and long-lasting durability.

  • Prevents Exhaust-Related Issues – Replacing a worn or malfunctioning back pressure valve helps reduce exhaust flow irregularities, uneven boost behavior, or potential engine derate conditions.

A properly functioning back pressure valve is essential for maintaining balanced exhaust flow, stable turbocharger performance, and overall engine efficiency. The Paccar MX13 Back Pressure Valve (OEM 1840165PE) delivers the OEM-standard precision and quality needed to support consistent exhaust control and dependable operation. For truck owners and technicians seeking a trusted replacement, Tamerx offers a high-quality solution that helps keep engines running smoothly, efficiently, and reliably.

The back pressure valve plays a key role in regulating exhaust flow and maintaining proper pressure within the engine’s exhaust system. When this valve begins to fail, it can disrupt engine performance, emissions control, and overall drivability. Recognizing the symptoms early can help prevent further damage and ensure your engine continues to operate efficiently.

Common Symptoms of a Faulty Back Pressure Valve

  • Reduced Engine Power
    A stuck or malfunctioning valve can restrict exhaust flow, causing sluggish acceleration or noticeable loss of power.

  • Poor Fuel Efficiency
    Incorrect exhaust pressure affects combustion efficiency, often leading to increased fuel consumption.

  • Rough Idling or Stalling
    Fluctuating exhaust pressure can cause unstable idling, hesitation, or even engine stalling.

  • Excessive Exhaust Smoke
    White, black, or blue smoke may appear if the valve interferes with proper exhaust flow or increases engine strain.

  • Overheating Issues
    Excessive back pressure can raise engine temperatures, putting stress on internal components.

  • Check Engine Light or Fault Codes
    The ECM may detect unusual exhaust pressure readings and trigger related warning lights or diagnostic codes.

  • Unusual Exhaust Noises
    Whistling, hissing, or rattling near the exhaust system can indicate valve restriction or mechanical failure.

A faulty back pressure valve can lead to significant performance loss, increased emissions, and even long-term engine damage if ignored. If you notice power reduction, rough idling, or excessive smoke, it’s important to have the exhaust system inspected promptly. Early diagnosis and repair keep your engine running efficiently and help prevent costly repairs down the road.

After replacement, clearing any related fault codes and letting the engine control module relearn sensor/actuator values is usually recommended for best results.

Yes — improper exhaust regulation may lead to inefficient combustion and reduced fuel efficiency.

It should be checked during major engine service intervals, especially if performance issues, rough running, or EGR-related codes appear.

Yes — it plays a role in EGR function and emissions control; a faulty valve can lead to elevated emissions and failed inspections.

Paccar Back Pressure Valves

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