
Cummins B6.7 Turbo Assembly 2022-2024: OEM 6395688
CUMMINS B6.7 TURBO ASSEMBLY 2022-2024: OEM 6395688

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured Drive On Diesel Turbo Assembly, Drive On Diesel part number 6395688RM-WA ( OEM Part Number 6395688 ). 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 | 6395688 |
| Additional OEM | 5603717, 5603717RX, 6395688, 6395688RX |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490555419 |
| WEIGHT | 49.00 LBS |
SHIPPING OPTIONS
Ship Weight : 49.00 LBS
UPS Ground, 2nd Day Air, Next Day Air
SHIPPING POLICY
Drive On Diesel 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 Drive On Diesel 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.
Drive On Diesel 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 Drive On Diesel, 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). Drive On Diesel 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 Drive On Diesel, 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. Drive On Diesel 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 Drive On Diesel core charge presented to you online today with your item is representative of the most common core charge.
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 6395688) is much more than an exhaust-driven component—it serves as the engine’s air management system, helping regulate the flow of air needed for efficient combustion. Designed for 2022–2024 applications, this turbo assembly plays a vital role in keeping the engine operating smoothly across a wide range of working conditions.
Every combustion cycle depends on the right amount of air. The turbo assembly helps deliver that air efficiently, ensuring the engine can meet changing demands without compromising reliability.
Here’s why this component is so important:
- Optimizes airflow throughout the engine
- The turbo directs and compresses incoming air, ensuring the engine receives the oxygen it needs for effective combustion.
- Supports consistent operation under load
- Whether the engine is pulling heavy equipment or operating under lighter conditions, the turbo helps maintain stable airflow levels.
- Improves combustion quality
- Proper air distribution allows fuel to burn more completely, creating a more controlled combustion process.
- Works in harmony with emissions components
- The turbo helps create the airflow conditions needed for systems such as EGR, DOC, DPF, and SCR to function properly.
- Converts exhaust energy into useful work
- Instead of letting exhaust gases go to waste, the turbo captures that energy and uses it to assist the intake side of the engine.
- Helps maintain overall engine efficiency
- By managing air movement throughout the system, it contributes to smoother operation and reduced strain on related components.
In simple terms, the Cummins 6395688 Turbo Assembly acts as the engine’s airflow coordinator, ensuring the right amount of air reaches the combustion chamber while supporting the performance of the entire intake, exhaust, and emissions system.
You may be able to drive with a failing turbo assembly for a short period, but it’s not considered safe to ignore the problem. A failing turbo can affect airflow, combustion, and overall engine operation, potentially leading to more serious damage if left unresolved.
Because the turbo assembly plays a critical role in moving air into the engine, any malfunction can quickly impact drivability and efficiency.
Here’s what can happen if you continue driving:
- Loss of acceleration and engine response
- A failing turbo may not provide the airflow the engine needs, resulting in sluggish acceleration and reduced responsiveness.
- Excessive exhaust smoke
- Damaged seals or internal wear can allow oil to enter the exhaust system, creating noticeable blue, black, or white smoke.
- Unusual noises from the turbo
- Whining, grinding, or rattling sounds can indicate worn bearings or damaged internal components that may worsen over time.
- Increased oil consumption
- Internal leaks can cause the turbo to consume oil, potentially leading to low oil levels and additional engine wear.
- Risk of complete turbo failure
- Continuing to drive with a damaged turbo can result in catastrophic failure, which may send debris into other engine components.
- Check engine light or boost-related fault codes
- The engine control system may detect abnormal boost levels and trigger warning lights or diagnostic codes.
While driving a short distance to a repair facility is usually acceptable, prolonged operation with a failing turbo assembly can increase repair costs and the risk of secondary engine damage. Having the issue diagnosed and repaired as soon as possible is the best course of action.
The turbine wheel is driven by exhaust gases flowing through the housing, converting exhaust energy into rotational force that powers the compressor wheel.
















































