
Cummins B6.7 Turbo Assembly 2022-2024: OEM 6395677
CUMMINS B6.7 TURBO ASSEMBLY 2022-2024: OEM 6395677

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured Tamerx Turbo Assembly, Tamerx part number 6395677RM ( OEM Part Number 6395677 ). 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 Cummins B6.7, production years 2022-2024, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
| Primary OEM | 6395677 |
| Additional OEM | 6395677 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490555549 |
| WEIGHT | 49.00 LBS |
SHIPPING OPTIONS
Ship Weight : 49.00 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 reliable turbocharger operation and efficient airflow management, the Cummins B6.7 Turbo Assembly (2022–2024) OEM 6395677 is an essential component for maintaining proper engine function. Manufactured to meet original equipment specifications, it ensures precise compatibility with Cummins B6.7 engines across the specified model years. This turbo assembly controls the flow of intake air and exhaust gases, helping support efficient combustion and consistent engine response under a variety of operating conditions. Built from durable, high-quality materials, it is designed to withstand high temperatures and the demanding environments commonly found in diesel applications. Ideal for technicians, fleet operators, and maintenance professionals, this OEM turbo assembly supports dependable engine operation and long-term system reliability.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2022 | Cummins | B6.7 | ||||
| 2023 | Cummins | B6.7 | ||||
| 2024 | Cummins | B6.7 | ||||
PEOPLE ALSO ASKS | BLOG(S)
The Cummins B6.7 Turbo Assembly (OEM 6395677) is a key engine component designed to manage airflow and make efficient use of exhaust energy. Built for 2022–2024 B6.7 applications, this turbo assembly helps ensure the engine receives the right amount of air needed for combustion, emissions control, and smooth operation.
Rather than letting exhaust gases leave the engine unused, the turbo captures that energy and converts it into a force that helps move fresh air into the intake system.
What Does the Cummins 6395677 Turbo Assembly Do?
- Uses exhaust energy efficiently
- The turbo harnesses the flow of exhaust gases to spin an internal turbine, transforming wasted energy into useful airflow.
- Compresses incoming air
- By increasing the amount of air entering the engine, the turbo helps create optimal conditions for combustion.
- Adjusts to changing engine demands
- The assembly continuously responds to variations in engine speed, load, and operating conditions.
- Supports emissions system operation
- Proper airflow is critical for systems such as EGR, DOC, DPF, and SCR to function as intended.
- Maintains balance between intake and exhaust systems
- The turbo helps coordinate airflow throughout the engine, contributing to stable and controlled operation.
- Works with the engine control system
- Modern turbo assemblies communicate with the ECM to help regulate airflow based on real-time engine data.
Why It Matters
The Cummins 6395677 Turbo Assembly serves as the engine's airflow management center. It connects the intake and exhaust systems, helping maintain the airflow needed for efficient combustion while supporting emissions control and overall engine reliability. As one of the hardest-working components on the engine, it plays a vital role in keeping the entire system operating smoothly.
A turbo assembly is a key engine component that helps improve airflow into the combustion chamber. By compressing incoming air, the turbo allows the engine to burn fuel more efficiently and operate more effectively under demanding conditions.
Because the turbo assembly works under extreme heat and high rotational speeds, it plays a major role in overall engine reliability. When functioning properly, it helps maintain smooth operation and supports consistent engine performance.
Here are the main components of a turbo assembly:
- Compressor housing and wheel
- Draws in and compresses fresh air before sending it to the engine.
- Turbine housing and wheel
- Uses exhaust gases to drive the turbocharger and create compressed airflow.
- Center housing rotating assembly (CHRA)
- Contains the shaft, bearings, and lubrication passages that allow the turbo to operate at high speeds.
- Actuator
- Controls turbo operation by regulating boost pressure and airflow.
- Oil and coolant passages
- Help lubricate and cool internal components to prevent premature wear.
To maximize the lifespan of a turbo assembly, it's important to perform regular oil changes, maintain a clean air intake system, and address any warning signs such as unusual noises, excessive smoke, oil leaks, or loss of acceleration.
Understanding how your turbo assembly works can help you identify potential issues early and avoid more costly repairs down the road.
At lower engine speeds, the turbocharger adjusts airflow characteristics to maintain effective air movement through the engine, helping support smooth operation before exhaust flow increases significantly.
The turbocharger directly influences airflow, exhaust management, emissions system performance, and overall engine responsiveness, making it one of the most important systems on a modern diesel engine.
Compressed air leaving the turbocharger travels through charge air piping and cooling components before reaching the intake manifold, ensuring consistent airflow distribution.
Yes. Variable geometry turbochargers are commonly used to assist exhaust braking functions by adjusting internal vane positions and managing exhaust backpressure.



















