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Cummins QSX15 Fuel Injector : OEM 5633476PX

CUMMINS QSX15 FUEL INJECTOR : OEM 5633476PX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,750.00

CORE CHARGE:

$350.00
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 NUMBER5633476PX
PART TYPEFuel Injector
BRANDCummins
ENGINE MAKECummins
ENGINE TYPEQSX15
YEAR
PART NUMBER5633476PX

PRODUCT DESCRIPTION

This is a Genuine New, Cummins Fuel Injector, Cummins part number 5633476PX ( OEM Part Number 5633476PX ). This part is primarily made for a Cummins QSX15, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM5633476PX
Additional OEM5633476, 5633476PX

ADDITIONAL DETAILS

CONDITIONGenuine New
UPC / Barcode00840490535329
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.


Installed in Cummins QSX15 engines, OEM 5633476PX is a fuel injector designed to supply controlled fuel delivery during normal engine operation. This component is manufactured to OEM specifications to ensure accurate fitment and compatibility with factory high-pressure fuel system assemblies. Built from durable materials, it is suited for the operating conditions common in heavy-duty diesel applications. The injector supports consistent fuel atomization to help maintain proper combustion characteristics. It is a dependable option for maintenance and targeted repair needs requiring reliable fuel system function.

PEOPLE ALSO ASKS | BLOG(S)

The Cummins QSX15 Fuel Injector: OEM 5633476PX is a high-pressure fuel injector designed for QSX15 diesel engines. It is part of the engine’s advanced fuel system and is responsible for delivering precise amounts of fuel directly into the combustion chamber. This injector assembly is made up of several integrated components that work together to control timing, pressure, and fuel atomization.

Key components of the Cummins QSX15 fuel injector include:

  • Injector body (housing)
    • The main structural casing that contains and supports all internal components.
  • Solenoid or electronic actuator
    • Controls the opening and closing of the injector based on signals from the engine control module.
  • Nozzle assembly
    • Directs and atomizes fuel into a fine spray pattern for efficient combustion.
  • Needle valve
    • Opens and closes to regulate fuel flow through the nozzle.
  • Plunger or internal control valve
    • Helps manage high-pressure fuel delivery within the injector.
  • Seals and O-rings
    • Maintain proper sealing between the injector and the cylinder head to prevent leaks.
  • Electrical connector
    • Connects the injector to the engine wiring harness for electronic control.

Together, these components allow OEM 5633476PX to deliver accurate fuel quantities at high pressure, ensuring proper combustion, stable engine operation, and controlled emissions in Cummins QSX15 applications.

When your fuel injector is failing, immediate diagnosis and repair are essential to prevent engine damage, poor performance, and costly aftertreatment issues. A failing injector can cause misfires, over-fueling, or lean conditions, all of which can stress the turbo, DPF, DOC, and SCR systems.

The first step is to perform a full diagnostic scan and review fuel trim data, injector balance rates, and rail pressure readings. Identifying whether the injector is leaking, restricted, or electrically faulty is critical before replacing components.

Midway through troubleshooting, focus on these key checks:

  • Inspect for rough idle, misfires, or hard starting
  • Check for excessive smoke or fuel odor
  • Monitor injector balance rates and cylinder contribution
  • Inspect fuel filters for contamination or metal debris
  • Verify proper rail pressure and high-pressure pump performance
  • Test wiring harness and injector electrical connectors

If an injector is confirmed to be leaking or sticking open, avoid continued operation, as it can cause cylinder washdown and oil dilution. In cases of over-fueling, exhaust temperatures can rise and damage emissions components.

Before installing a replacement injector, confirm fuel quality and ensure there is no metal contamination from a failing high-pressure pump. Proper filtration, clean fuel, and accurate torque procedures are essential to preventing repeat failure and restoring reliable engine performance.

Yes, proper high-pressure fuel system tools and correct torque settings are needed to ensure secure sealing and connection.

Yes, professional installation is recommended to ensure correct seating, sealing, and fuel system calibration.

It is an OEM fuel injector designed to deliver precise fuel delivery to the combustion chamber of Cummins QSX15 diesel engines.

Yes, it is an OEM-specified injector intended for direct replacement on compatible QSX15 engines.

Cummins Fuel Injectors