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Cummins L9 Turbo Actuator 2014-2024: OEM 6374773RX

CUMMINS L9 TURBO ACTUATOR 2014-2024: OEM 6374773RX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,495.00

AVAILABILITY IN STOCK
OEM NUMBER6374773RX, 5501181
PART TYPETurbo Actuator
BRANDCummins Holset
ENGINE MAKECummins
ENGINE TYPEL9
YEAR2014-2024
PART NUMBER6374773N
ADDITIONAL NOTES12 Volt Actuator

PRODUCT DESCRIPTION

This is a Genuine New, Cummins Holset Turbo Actuator, Cummins Holset part number 6374773N ( OEM Part Number 6374773RX, 5501181 ).This part is primarily made for a Cummins L9, production years 2014-2024, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: 12 Volt Actuator

OEM NUMBERS

Primary OEM6374773RX, 5501181
Additional OEM5501181, 6374773RX

ADDITIONAL DETAILS

CONDITIONGenuine New
UPC / Barcode00840490552418
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.


Unleash peak turbo performance with the Cummins L9 Turbo Actuator 2014–2024 (OEM 6374773RX), engineered to keep boost control sharp and responsive under all conditions. This precision actuator ensures your L9 turbo delivers consistent power and efficiency, helping you tackle tough jobs with confidence. Built to OEM standards for durability and reliable operation over the long haul, it’s the upgrade your engine has been waiting for. Trust this actuator to help your rig run smoother, stronger, and more efficiently mile after mile.

FITMENT CHART

YEARMAKEENGINE(S)
2014Cummins L9
2015Cummins L9
2016Cummins L9
2017Cummins L9
2018Cummins L9
2019Cummins L9
2020Cummins L9
2021Cummins L9
2022Cummins L9
2023Cummins L9
2024Cummins L9

PEOPLE ALSO ASKS | BLOG(S)

The turbo actuator plays a crucial role in controlling turbocharger boost on Cummins L9 engines from 2014 to 2024. It helps manage the position of the turbo’s vanes or wastegate, ensuring the right amount of air enters the engine for efficient combustion. A properly functioning actuator supports throttle response, fuel efficiency, and overall engine performance. The Cummins L9 Turbo Actuator OEM 6374773RX from Tamerx Diesel Parts is built to meet OEM specifications, offering a reliable replacement option when the original actuator fails or begins to wear.

  • Regulates turbo boost pressure by adjusting the turbo’s vanes or wastegate, helping maintain optimal air delivery for efficient combustion

  • Exact fit for Cummins L9 engines (2014–2024) ensuring proper installation, correct integration, and dependable operation with factory turbo systems

  • Supports improved engine response by helping maintain consistent boost levels, which can enhance throttle control and overall drivability

  • Built to OEM specifications (6374773RX) providing dependable durability, stable performance, and compatibility with original turbo components

  • Ideal for highway and heavy-duty applications where sustained turbocharger performance and reliable boost control are essential

Replacing a worn or failing turbo actuator with the Cummins L9 Turbo Actuator OEM 6374773RX from Tamerx Diesel Parts helps restore proper turbocharger operation and supports smooth engine performance. Investing in a quality, OEM-matched actuator ensures your turbo system functions as designed, helping maintain efficient combustion and reliable power delivery over the life of your engine.

A turbo actuator controls the movement of the turbo’s vanes or wastegate, helping regulate boost pressure and engine efficiency. Because it operates in a high-heat, high-vibration environment, proper maintenance is key to preventing premature failure. Consistent care helps ensure accurate boost control and reliable turbo operation.

  • Maintain clean engine oil: Regular oil changes help protect moving components and reduce internal wear.

  • Address exhaust system issues early: Problems with the DPF, DOC, or EGR system can increase heat and stress on the actuator.

  • Avoid excessive heat buildup: Allow proper cool-down time after heavy driving to protect actuator components.

  • Inspect wiring and connectors: Electrical actuators rely on clean, secure connections for accurate operation.

  • Fix boost-related fault codes promptly: Early diagnosis prevents actuator overuse or strain.

  • Maintain overall turbo health: Proper lubrication and airflow reduce unnecessary actuator movement.

Extending the life of a turbo actuator depends on keeping the engine, exhaust, and turbo systems in good condition. Proactive maintenance and early issue resolution help support smooth operation and reduce the risk of costly turbo-related repairs.

A malfunctioning unit can cause irregular boost pressure, leading to reduced power and throttle response. You may also notice black smoke under acceleration due to improper air delivery.

Common symptoms include turbo lag, loss of power, engine derate codes, or turbo overboost warnings. These issues usually mean the actuator isn’t properly managing the turbo vanes.

While a skilled DIYer might handle the installation, professional installation is recommended to ensure correct calibration and torque specs. Incorrect setup can cause boost issues or trigger diagnostic codes.

This actuator precisely adjusts the vanes inside the turbo to regulate airflow and pressure. Proper control helps maintain peak engine performance and efficiency.

Cummins Turbo Actuators

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