
Chevrolet GMC Duramax L5P Turbo Assembly 2017-2019: OEM 12723305
CHEVROLET GMC DURAMAX L5P TURBO ASSEMBLY 2017-2019: OEM 12723305

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Genuine, Borg-Warner Turbo Assembly, Borg-Warner part number 12709881081 ( OEM Part Number 12723305 ).This part is primarily made for a Chevrolet GMC Duramax L5P, production years 2017-2019, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
Additional Notes: Genuine New Borg Warner w/Actuator
OEM NUMBERS
| Primary OEM | 12723305 |
| Additional OEM | 12723305 |
ADDITIONAL DETAILS
| CONDITION | Genuine |
| UPC / Barcode | 00840490557284 |
| WEIGHT | 55.00 LBS |
SHIPPING OPTIONS
Ship Weight : 55.00 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.
Boost dependable engine operation with the Chevrolet GMC L5P Turbo Assembly 2017–2019 (OEM 12723305). Made for compatible L5P diesel applications, this turbo assembly uses exhaust energy to deliver compressed air to the engine and maintain proper turbocharger operation. Manufactured to OEM specifications, it provides accurate fitment and reliable compatibility for select Chevrolet and GMC models within the listed years. Replacing a worn or failing turbo assembly helps restore proper boost, responsive acceleration, and consistent engine operation.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2017 | Chevrolet GMC | Duramax L5P | ||||
| 2018 | Chevrolet GMC | Duramax L5P | ||||
| 2019 | Chevrolet GMC | Duramax L5P | ||||
PEOPLE ALSO ASKS | BLOG(S)
Extreme heat, high rotational speeds, and constant exposure to exhaust gases place significant demands on a Turbo Assembly. While turbochargers are made for long-term operation, lubrication problems, contamination, and other engine issues can accelerate wear and eventually cause failure. Understanding these causes can help reduce unexpected downtime and premature replacement.
- Insufficient oil supply can prevent proper lubrication of turbo bearings and lead to rapid internal wear.
- Dirty or contaminated engine oil can damage bearings, shafts, and other moving components inside the turbo.
- Foreign objects entering through the intake or exhaust system can damage compressor or turbine blades.
- Clogged or restricted air filters may reduce airflow and place additional stress on the Turbo Assembly.
- Excessive exhaust temperatures can damage turbine components, seals, and internal surfaces over time.
- Oil leaks or worn turbo seals can lead to lubrication loss, excessive smoke, and reduced turbo efficiency.
- Engine problems such as faulty fuel injectors, poor combustion, or excessive exhaust backpressure can contribute to premature turbo failure.
Preventing Turbo Assembly failure starts with proper engine maintenance, clean oil, unrestricted airflow, and timely attention to developing problems. Regular inspections and prompt repairs help protect the turbocharger, maintain reliable boost pressure, and extend its overall service life.
Yes. Leaking charge-air hoses, connections, or intercooler components can cause low boost symptoms even when the turbo itself is operating correctly. The complete charge-air system should be tested before replacement.
Oil may appear because of turbo sealing problems, excessive crankcase pressure, or another issue affecting the intake system. The source should be diagnosed rather than assuming the turbo is automatically at fault.
Yes. Exhaust restrictions or leaks can change the exhaust energy available to drive the turbocharger. These problems may contribute to incorrect boost levels or poor turbo response.
The intercooler should be checked for leaks, restrictions, damage, and excessive oil accumulation. Problems in the intercooler can affect airflow and create symptoms similar to turbocharger failure.











