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Cummins L9 High Pressure Fuel Pump 2019-2021: OEM 5594422RX

CUMMINS L9 HIGH PRESSURE FUEL PUMP 2019-2021: OEM 5594422RX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$4,270.00

CORE CHARGE:

$900.00
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 NUMBER5594422RX
PART TYPEHigh Pressure Fuel Pump
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEL9
YEAR2019-2021
PART NUMBER5594422RM-1

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx High Pressure Fuel Pump, Tamerx part number 5594422RM-1 ( OEM Part Number 5594422RX ). 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 Cummins L9, production years 2019-2021, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM5594422RX
Additional OEM5491997, 5594422, 5594422RX

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode086547501446
WEIGHT25.00 LBS

SHIPPING OPTIONS

Ship Weight : 25.00 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.


Specifically designed for 2019-2021 Cummins L9 engines, the High Pressure Fuel Pump (OEM 5594422RX) ensures precise fuel delivery to maintain efficient combustion and smooth engine operation. Built to meet OEM specifications, this pump is a key component in sustaining proper fuel pressure, which is crucial for engine reliability and longevity. A properly functioning fuel pump helps prevent injector issues, minimizes fuel system wear, and supports consistent performance under demanding conditions. Each unit undergoes rigorous testing for durability and quality, providing a dependable replacement solution. Addressing a failing pump promptly can help prevent power loss, hard starts, and costly engine repairs.

FITMENT CHART

YEARMAKEENGINE(S)
2019Cummins L9
2020Cummins L9
2021Cummins L9

PEOPLE ALSO ASKS | BLOG(S)

The high-pressure fuel pump is a key component in modern diesel engines, ensuring the precise delivery of fuel under high pressure for efficient combustion. The Cummins L9 High Pressure Fuel Pump, OEM 5594422RX, is specifically designed to meet the demands of Cummins L9 engines from 2019 to 2021. In this blog, we’ll focus on the essential functions of this fuel pump and why maintaining it is crucial for engine performance and longevity.

Key Functions of the Cummins L9 High Pressure Fuel Pump (OEM 5594422RX):

  • Ensures High-Pressure Fuel Delivery

    • This fuel pump is responsible for supplying fuel at high pressure to the injectors, which is crucial for efficient fuel combustion in modern diesel engines.

  • Optimizes Fuel Combustion

    • By delivering fuel at the right pressure, the pump helps ensure complete and efficient combustion, improving fuel economy and reducing emissions.

  • Supports Engine Performance

    • A well-functioning high-pressure fuel pump is essential for maintaining the engine’s power output, ensuring that the engine runs smoothly, even under heavy loads or challenging conditions.

  • Prevents Fuel System Failures

    • A malfunctioning fuel pump can lead to fuel system issues such as poor fuel delivery, injector problems, or engine misfires. The OEM 5594422RX pump helps prevent these issues by ensuring consistent and reliable fuel pressure.

  • Specifically Designed for Cummins L9 Engines

    • The OEM 5594422RX fuel pump is engineered to fit perfectly with Cummins L9 engines from 2019 to 2021, ensuring optimal performance and durability.

The Cummins L9 High Pressure Fuel Pump (OEM 5594422RX) plays a critical role in delivering the fuel your engine needs for efficient combustion and reliable performance. Regular maintenance and timely replacement of this pump are key to ensuring your Cummins L9 engine continues to operate efficiently. TamerX Diesel Parts provides high-quality OEM fuel pumps, helping you keep your engine in peak condition.

The high-pressure fuel pump is a critical component in your vehicle’s fuel system, responsible for delivering fuel to the engine at the necessary pressure for optimal performance. When this pump starts to fail, it can lead to various issues that affect your engine's efficiency and functionality. In this blog, we’ll explore the common symptoms of a failing high-pressure fuel pump and why it’s important to address them early.

Symptoms of a Failing High-Pressure Fuel Pump:

  • Difficulty Starting the Engine

    • One of the first signs of a failing high-pressure fuel pump is trouble starting the engine. The pump may struggle to provide sufficient pressure, causing longer crank times or preventing the engine from starting altogether.

  • Loss of Power

    • A failing fuel pump may not be able to maintain the correct fuel pressure, leading to a noticeable loss of power, especially when accelerating or climbing hills. The engine may feel sluggish or unresponsive.

  • Engine Misfires

    •  If the fuel pump can’t deliver fuel consistently, you may experience engine misfires. This happens when there’s insufficient fuel in the combustion chamber, causing the engine to stutter or hesitate during acceleration.

  • Poor Fuel Efficiency

    •  A malfunctioning high-pressure fuel pump can cause an imbalance in the fuel-to-air ratio, leading to poor fuel economy. You might find that you need to refuel more frequently than usual.

  • Stalling

    • A bad high-pressure fuel pump may cause the engine to stall, especially at low speeds or when idling. In severe cases, the engine may stall while driving, which could pose a safety risk.

  • Check Engine Light

    • A failing high-pressure fuel pump can trigger the check engine light. The vehicle’s diagnostic system may detect irregularities in fuel pressure and activate the light to alert you to the problem.

A failing high-pressure fuel pump can lead to a range of issues, including difficulty starting, loss of power, engine misfires, poor fuel efficiency, and even stalling. Recognizing these symptoms early is crucial to preventing more serious engine damage and costly repairs. If you notice any of these signs, it’s essential to have your fuel system inspected and repaired promptly to ensure your vehicle continues running smoothly and efficiently.

Common causes include wear over time, contamination from dirty fuel, and insufficient lubrication.

Testing the performance of the high pressure fuel pump involves specific procedures and tools; it's recommended to consult the manufacturer's guidelines or a professional technician.

High pressure fuel pump leaks can result from high inlet fuel line restriction or high fuel pump drain line restriction, leading to excessive wear of the lip seal.

Regular maintenance includes timely fuel filter replacements, using high-quality fuel, and adhering to the manufacturer's recommended service intervals.

Cummins High Pressure Fuel Pumps