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Cummins X15 Fuel Gear Pump 2018-2021: OEM 4359062RX

CUMMINS X15 FUEL GEAR PUMP 2018-2021: OEM 4359062RX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,195.00

CORE CHARGE:

$250.00
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 NUMBER4359062RX
PART TYPEFuel Gear Pump
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEX15
YEAR2018-2021
PART NUMBER4359062RM
APPLICATION NOTESCPL 4343 565Hp and Higher

PRODUCT DESCRIPTION

This is a Remanufactured, Tamerx Fuel Gear Pump, Tamerx part number 4359062RM ( OEM Part Number 4359062RX ).This part is primarily made for a Cummins X15, production years 2018-2021, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM4359062RX
Additional OEM4359062RX, 4384252

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode
WEIGHT15.00 LBS

SHIPPING OPTIONS

Ship Weight : 15.00 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.


Drive dependable fuel flow with the Cummins X15 Fuel Gear Pump (2018–2021): OEM 4359062RX. This genuine OEM pump is built to deliver consistent fuel pressure, ensuring smooth engine operation, efficient combustion, and reliable performance under load. Designed for a precise fit and rugged durability, it's the ideal replacement to keep your X15 engine running strong and ready for the long haul.

FITMENT CHART

YEARMAKEENGINE(S)
2018Cummins X15
2019Cummins X15
2020Cummins X15
2021Cummins X15

PEOPLE ALSO ASKS | BLOG(S)

In Cummins X15 engines, consistent fuel delivery is essential for smooth operation. If you're experiencing hard starts, erratic idling, or power loss, the issue could stem from a failing fuel gear pump. The OEM 4359062RX fuel gear pump, designed for Cummins X15 engines from 2018 to 2021, plays a vital role in supplying fuel from the tank to the high-pressure injection system.

Why Choose OEM 4359062RX from TamerX:

  • Engineered for Cummins X15 engines (2018–2021)

  • Matches original factory specifications

  • Helps restore consistent fuel flow

  • Supports the function of downstream fuel system components

If your X15 engine is showing signs of fuel delivery trouble, replacing the fuel gear pump with a trusted OEM part is a smart move. The Cummins 4359062RX pump ensures stable fuel transfer and long-term dependability. Order today from TamerX Diesel Parts and keep your engine running efficiently.

 
 
 

The fuel gear pump plays an essential role in moving fuel from the tank to the engine with consistent pressure. As a mechanical component exposed to heat, vibration, and contaminants, it’s important to follow regular maintenance practices to maximize its service life. With proper care, a fuel gear pump can operate reliably for many miles.

Best Practices to Extend Fuel Gear Pump Life:

  • Use Clean, High-Quality Fuel – Contaminated or low-grade fuel can introduce particles that wear down the pump’s internal gears.

  • Replace Fuel Filters Regularly – A clogged filter restricts flow and forces the pump to work harder, leading to early failure.

  • Inspect for Leaks – Check lines, seals, and fittings routinely to prevent air intrusion or fuel leakage that can damage the pump.

  • Avoid Running Low on Fuel – Operating with a near-empty tank can cause the pump to draw in air or sediment, stressing the system.

  • Monitor Pump Noise – Unusual whining or grinding sounds may indicate excessive wear or cavitation, which should be addressed quickly.

  • Maintain Proper Fuel Line Routing – Ensure lines are secured and free of kinks or bends that may restrict flow or cause overheating.

  • Follow OEM Service Intervals – Stick to the manufacturer’s recommendations for inspections and part replacements to maintain system integrity.

A well-maintained fuel gear pump contributes to smooth engine operation and long-term reliability. By using clean fuel, replacing filters on time, and addressing issues early, you can help extend the life of your pump and reduce the risk of unplanned downtime or costly repairs. Consistent care pays off in performance and peace of mind.

Debris can score internal surfaces and disrupt fuel flow regulation.

Yes, irregular pressure output from the pump can destabilize idle speed.

Inspection is advised at major service milestones or if fuel-related issues arise.

 

The engine may lose power or enter limp mode due to inadequate fuel delivery.

 

Cummins Fuel Gear Pumps