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Detroit DD8 Turbo Actuator 2017-2021: OEM A9361505794

DETROIT DD8 TURBO ACTUATOR 2017-2021: OEM A9361505794

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,750.00

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 NUMBERA9361505794
PART TYPETurbo Actuator
BRANDDetroit
ENGINE MAKEDetroit
ENGINE TYPEDD8
YEAR2017-2021
PART NUMBERA9361505794

PRODUCT DESCRIPTION

This is a Genuine New Detroit Turbo Actuator, Detroit part number A9361505794 ( OEM Part Number A9361505794 ). 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 Detroit DD8, production years 2017-2021, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM A9361505794
Additional OEM A9361504294, A9361505794, DDE A9361505794

ADDITIONAL DETAILS

CONDITION Genuine New
UPC / Barcode 00840490534209
WEIGHT 6.00 LBS

SHIPPING OPTIONS

Ship Weight : 6.00 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 on Detroit DD8 engines produced between 2017 and 2021, OEM A9361505794 is a turbo actuator engineered to regulate the position of the turbocharger’s variable geometry mechanism or wastegate for optimized airflow control. This actuator is manufactured to OEM specifications to ensure proper fitment and compatibility with factory turbo system components. Constructed from durable materials, it is suited for the operating conditions common in modern diesel applications. The unit supports accurate turbo response by controlling airflow dynamics during normal engine operation. It is a reliable option for fleet maintenance and targeted repair needs requiring consistent turbo system function.

FITMENT CHART

YEARMAKEENGINE(S)
2017Detroit DD8
2018Detroit DD8
2019Detroit DD8
2020Detroit DD8
2021Detroit DD8

PEOPLE ALSO ASKS | BLOG(S)

The Detroit DD8 Turbo Actuator 2017–2021: OEM A9361505794 is an electronically controlled component that manages the turbocharger’s variable geometry system. Rather than being a simple mechanical part, it is a compact assembly made up of several integrated electronic and mechanical elements that work together to control turbo vane position.

Below are the primary components found within the Detroit DD8 turbo actuator assembly:

  • Electric motor
    • Drives the internal gear mechanism that adjusts the turbocharger vanes.
  • Gear reduction system
    • Transfers and multiplies the motor’s movement into precise mechanical motion for accurate vane positioning.
  • Position sensor
    • Monitors the actuator’s movement and provides real-time feedback to the engine control module.
  • Control circuit board (electronics module)
    • Processes commands from the engine control unit and regulates motor operation.
  • Actuator shaft/output lever
    • Connects the actuator to the turbocharger’s variable vane mechanism.
  • Sealed housing
    • Protects internal electronics and mechanical components from heat, vibration, and contaminants.
  • Electrical connector port
    • Allows communication between the actuator and the engine’s wiring harness.

Together, these components enable OEM A9361505794 to control turbo vane positioning based on engine load, speed, and operating conditions. Proper actuator function is essential for maintaining accurate airflow management, emissions control, and consistent engine operation in Detroit DD8 engines from 2017 to 2021.

When your turbo actuator is failing, immediate diagnosis is important to prevent power loss, overboost conditions, and potential turbo damage. The turbo actuator controls boost pressure by adjusting the variable geometry vanes or wastegate, and when it malfunctions, engine performance and emissions can be significantly affected.

The first step is to scan for diagnostic trouble codes related to boost pressure, turbo position, or actuator communication. Common symptoms include underboost or overboost codes, reduced power, poor acceleration, and possible engine derate. Do not ignore these warnings, as improper boost control can strain the turbo and engine.

Midway through troubleshooting, focus on these essential checks:

  • Verify actuator calibration and position feedback readings
  • Inspect wiring harness and connectors for corrosion or damage
  • Check for soot buildup causing VGT vane sticking
  • Test for boost leaks in charge air piping
  • Inspect turbo shaft play and overall turbo condition
  • Confirm proper exhaust flow and no DPF restriction

If the actuator fails calibration, loses communication, or cannot move the vanes correctly, replacement may be required. However, it is critical to ensure the turbo itself is not mechanically damaged and that exhaust restrictions or soot buildup are not the root cause.

Avoid repeated recalibration attempts without identifying the underlying issue. Proper diagnostics, cleaning if applicable, and correction of related engine or exhaust faults will prevent repeat actuator failure and protect the turbo system.

It is the factory turbo actuator that controls the turbocharger’s vanes on Detroit DD8 engines from 2017 through 2021.

It is mounted on the turbocharger where it interfaces with the wastegate or variable geometry mechanism.

It adjusts the turbocharger’s position based on commands from the engine control module to regulate airflow.

Yes, it is an OEM-specified actuator intended for direct fitment on compatible DD8 turbo systems.

Detroit Turbo Actuators