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No Blow-By. No Problems.
Doc’s CCV Filters capture oil vapors and harmful blow-by gases to protect your turbo, extend oil life, and keep your engine running clean and efficient. By controlling crankcase pressure and cutting emissions, it helps your diesel meet tough standards without sacrificing performance.
Superior Oil Separation Efficiency
What does that mean? Traps oil mist and vapors from crankcase gases before they can re-enter the intake system.
Why is that important? Keeps turbo, intercooler, and intake valves cleaner—reducing carbon buildup and maintaining engine performance over time.
Long Service Life
What does that mean? Holds more oil and contaminants without clogging prematurely.
Why is that important? Fewer replacements, less downtime, and lower overall maintenance costs—perfect for fleet, off-road, or long-haul applications.
Heavy-Duty, Leak-Proof Construction
What does that mean? Durable materials and a secure seal prevent leaks and failures under pressure, heat, or vibration.
Why is that important? Reliable performance in extreme conditions like towing, off-roading, or winter driving—no worries about blow-by messes or oil leaks.
Customer Reviews
FREQUENTLY ASKED QUESTIONS
What’s your shipping policy?
We offer free shipping over $99 on all orders within the contiguous United States. Expedited shipping is available for an additional charge. Alaska, Hawaii, and Canada will have shipping fees.
Where does Doc’s Diesel ship to?
We ship to the U.S. and Canada! For Canada orders, any taxes, duties, or customs fees are the responsibility of the buyer. We handle orders in 1-2 business days, and most of the time in less than 24 hours if ordered on a week day. Depending on location, U.S. orders will arrive between 3-5 business days from your order. Canada orders typically arrive within 7-11 days.
What is your warranty?
View our Official Limited Warranty
Doc’s Diesel Filters meet or exceed Original Equipment Manufacturer’s (OEM) requirements. New vehicle warranties stay in effect when Doc’s Diesel filters are installed correctly and in conjunction to engine manufacturer’s recommendations.
Where is my order?
If you have not received your confirmation email us sales@docsdiesel.com so we can get everything sorted out ASAP. If you received a confirmation but no shipment email, we are still working on your order. Don't hesitate to email sales@docsdiesel.com if you would like more information and we'd be happy to check on your order. Please Include your order # in the email.
For Tracking information, it will be in your shipment email. Check the tracking # first or the latest updates. Doc's Diesel, just like you are at the mercy of shipping companies after a shipment leaves our warehouse. If there's been an issue with shipment we will happily work with you to figure out where the order is and what we can do to help. You can reach out to sales@docsdiesel and include your order # in the email. Thank You!
Why didn’t I get a confirmation email?
Sometimes an email may get sent to your spam folder! So don’t forget to check that. If you need more help to hesitate to reach us at sales@docsdiesel.com.
How do I start a return?
If you are unhappy with your purchase for whatever reason, and it's within 30 days from your purchase, you can return your diesel filters back to us. Item has to be in new condition. Once filters are received, we will refund your money (minus price of return shipping) within 2-4 business days. We will refund to your original form of payment.
To start a return, visit our Returns Center.
View Our Official Limited Warranty Policy
Thank you!