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Cummins X12, X15 Turbo Actuator 2020-2026: OEM 6476157

CUMMINS X12, X15 TURBO ACTUATOR 2020-2026: OEM 6476157

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,495.00

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 NUMBER6476157
PART TYPETurbo Actuator
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEX12, X15
YEAR2020-2026
PART NUMBER6476157RM

PRODUCT DESCRIPTION

This is a Remanufactured, Tamerx Turbo Actuator, Tamerx part number 6476157RM ( OEM Part Number 6476157 ).This part is primarily made for a Cummins X12, X15, production years 2020-2026, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM6476157
Additional OEM6476157

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490553255
WEIGHT8.00 LBS

SHIPPING OPTIONS

Ship Weight : 8.00 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.


Engineered for precise turbocharger control, the Cummins X12 / X15 Turbo Actuator (2020–2026) OEM 6476157 is a key component in maintaining proper engine airflow management. Designed to meet original equipment specifications, it ensures exact fitment with Cummins X12 and X15 engines within the specified model years. This actuator regulates turbocharger positioning, helping maintain consistent operation and accurate response under varying driving conditions. Built from durable, high-quality materials, it is made to withstand extreme temperatures and demanding diesel environments. Ideal for fleet operators and service professionals, this OEM actuator supports dependable turbo system function and long-term reliability.

FITMENT CHART

YEARMAKEENGINE(S)
2020Cummins X12 X15
2021Cummins X12 X15
2022Cummins X12 X15
2023Cummins X12 X15
2024Cummins X12 X15
2025Cummins X12 X15
2026Cummins X12 X15

PEOPLE ALSO ASKS | BLOG(S)

Proper care of your Cummins X12 / X15 Turbo Actuator (OEM 6476157) is essential for keeping the turbocharger system operating accurately and avoiding unexpected issues. Since this component relies on precise electronic and mechanical movement, consistent maintenance and awareness can help extend its service life.

One of the most important steps is regular monitoring. Because the actuator works closely with the engine control module (ECM), even small issues can trigger warning lights or fault codes that shouldn’t be ignored.

Here are key care practices to follow:

  • Keep electrical connections clean and secure
    • Inspect wiring and connectors for dirt, corrosion, or looseness, as poor connections can interfere with actuator communication.
  • Avoid exposure to excessive moisture or contaminants
    • The actuator is sensitive to environmental conditions, so ensuring proper sealing and protection helps prevent internal damage.
  • Address fault codes promptly
    • Any turbo-related codes may indicate actuator issues. Early diagnosis can prevent further complications within the turbo system.
  • Ensure proper turbo system maintenance
    • Keeping the turbocharger, sensors, and related components in good condition reduces unnecessary strain on the actuator.
  • Follow recommended service intervals
    • Routine inspections during scheduled maintenance help catch wear or irregular behavior before it leads to failure.
  • Avoid abrupt shutdown after heavy operation
    • Allowing the engine to cool down helps reduce thermal stress on the turbo system and its actuator.

By staying proactive with inspections and responding quickly to warning signs, you can help ensure your Cummins 6476157 turbo actuator continues to function reliably and maintain consistent engine operation.

Turbo actuators don’t typically follow a set replacement interval, so timing depends on condition rather than mileage. The best time to replace one is when it begins to show signs of failure or can no longer control boost accurately.

A failing actuator can affect how the turbo responds, leading to inconsistent operation and potential strain on the engine if left unaddressed.

Here are common indicators that it may be time for a replacement:

  • Inconsistent boost levels
    • If the turbo is over- or under-boosting, the actuator may not be adjusting properly to engine demands.
  • Check engine light or fault codes
    • Diagnostic codes related to boost control or actuator position often point to internal or electrical issues.
  • Sluggish acceleration or delayed response
    • Poor actuator movement can prevent the turbo from responding quickly, affecting overall drivability.
  • Sticking or restricted movement
    • Carbon buildup can cause the actuator to stick, limiting its ability to open or close as needed.
  • Unusual noises from the turbo area
    • Clicking or whining sounds may indicate mechanical wear or actuator malfunction.

Regular inspections can help catch these signs early. Replacing the turbo actuator at the first sign of failure helps maintain proper turbo function and prevents further damage to related components.

It operates within a 12-volt system designed for modern Cummins electronic engine controls.

Yes, it plays a key role in controlling exhaust flow to support emissions system operation in modern diesel engines.

This actuator is used on variable geometry turbochargers (VGT), where it electronically controls the position of internal vanes to regulate exhaust flow.

It receives signals from the engine control module and adjusts the turbo vane position in real time to manage airflow and exhaust pressure.

Cummins Turbo Actuators