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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
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Description
2019-2022 Silverado 1500 5.3/6.2L Catch Can. Oil Separator (KNN81-0804)The K&N Air Oil Separator protects the engine and intake tract from blowby by capturing the oil in our industry leading high capacity reservoir. This helps prevent power loss and possible engine damage caused by blowby. The K&N Air Oil Separator is quick and easy to install in about 30 minutes with basic tools and uses factory style hose connections to quickly snap on and off. The oil separator replaces the factory line from the crank case allowing
The K&N Air Oil Separator protects the engine and intake tract from blowby by capturing the oil in our industry leading high capacity reservoir. This helps prevent power loss and possible engine damage caused by blowby. The K&N Air Oil Separator is quick and easy to install in about 30 minutes with basic tools and uses factory-style hose connections to quickly snap on and off. The oil separator replaces the factory line from the crank case allowing the oil separator to be mounted to a coinvent location in your engine bay. No tools are needed to check and empty the oil collector reservoir. Each unit is engineered specifically for your vehicle and is backed by our No-Hassle Lifetime Limited Warranty.Installation Instructions
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Great price, easy install
OEM fit and very easy to install. No issues at all — everything worked exactly as expected.
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Reviewed in the United States on November 19, 2025
★★★★★ 5
Great filter
Always as expected, purchased multiple times!
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Good fit
Good fit
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Looks exactly like the original car filter, but for a lot less than from the car dealership
Looks as good as the OEM filter and at a better price than at the car dealership. Hopefully it should do the filtering job.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Fits 2017 and 2018 Honda CRV 1.5l
Easy and perfect fit for 2017 and 2018 Honda CRV with 1.5l engines. You need a Phillips screwdriver to remove the 4 screws holding the airbox. After that you just remove the old one and put the new one in the same orientation and put the screws back on. Helps the engine breathe which can result in slightly more power and mpg. I recommend changing every few years.
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Reviewed in the United States on August 8, 2025