K&N 81-0805 Catch Can Oil Separator for Chevy Silverado GMC Sierra 1500 5.3L 6.2L
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K&N 81-0805 Catch Can Oil Separator for Chevy Silverado GMC Sierra 1500 5.3L 6.2L

4.8 stars out of 4 reviews
(4.8)|
4 ratings
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Key item features

  • Engine Protection: This K&N Air Oil Separator safeguards the engine and intake tract by effectively capturing blowby oil in its high-capacity reservoir.
  • Performance Preservation: The separator helps prevent power loss and potential engine damage that can be caused by blowby.
  • Quick Installation: Installation is straightforward, requiring approximately 30 minutes with basic tools and utilizing factory-style hose connections.
  • Convenient Placement: The oil separator replaces the factory crankcase line, allowing for mounting in a convenient location within the engine bay.
  • Easy Maintenance: Checking and emptying the oil collector reservoir does not require any tools.
  • Vehicle Specific: Each unit is engineered to fit specific vehicles, ensuring optimal performance and integration.
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4.8 out of 5 stars
stars4 ratings4 reviews
How item rating is calculated
  1. 5 stars75% (3)
  2. 4 stars25% (1)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star0% (0)

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Showing 1-3 of 4 reviews

Apr 1, 2026
Kier
5 out of 5 stars review

Verified Purchase

Easy Install and Incredible Performance

Talk about an amazing product. The ability to install this catch can with limited tools makes this a breeze, it took me about 20 minutes. I love OEM style connectors, this helped with the ease of install. 10/10 would recommend this set up!

Helpful?1SYK6BE5ZD6W5146729034
Apr 7, 2026
moT
5 out of 5 stars review

Works GREAT! Very well made.

Every other time you fill up with gas you should empty and clean this separator. In freezing conditions, this traps A LOT of water vapor/condensate and some motor oil mixed together and fills up the can surprisingly fast, empty it with every fill-up. It really works great preventing a huge amount of oil and water vapor building up like sludge around the intake valves.

Review from K and N Filters
Helpful?1SYK6BE5ZD6W5146729034
Jul 22, 2025
Jimmy
5 out of 5 stars review

Super Easy to Install and Works Great

Just purchased a 2017 GMC Yukon XL for our growing family. Did plenty of research on issues and how to resolve them. The catch can works great! First 2000 miles and caught a fair amount of oil.

Review from K and N Filters
Helpful?1SYK6BE5ZD6W5146729034