Description
The K&N Filters 81-0815 Air Oil Separator is designed to protect your engine and intake tract from blowby by effectively capturing oil in its high-capacity reservoir. This innovative component helps prevent power loss and potential engine damage caused by blowby, ensuring optimal performance.
Installation of the K&N Air Oil Separator is quick and straightforward, taking about 30 minutes with basic tools. It utilizes factory-style hose connections, allowing for easy snap-on and off functionality. The oil separator replaces the factory line from the crankcase, providing a convenient mounting location in your engine bay. Checking and emptying the oil collector reservoir requires no tools, making maintenance hassle-free.
Features
- High-capacity reservoir for effective oil capture
- Quick and easy installation in approximately 30 minutes
- Factory-style hose connections for easy snap-on and off
- Replaces factory line from crankcase
- No tools required for checking and emptying oil collector reservoir
- Backed by a No-Hassle Lifetime Limited Warranty
Frequently Asked Questions
What is the purpose of the K&N Air Oil Separator?
The K&N Air Oil Separator captures blowby oil, protecting the engine and intake tract.
How long does it take to install the air oil separator?
Installation takes about 30 minutes with basic tools.
Do I need tools to check the oil collector reservoir?
No tools are needed to check and empty the oil collector reservoir.
Manuals & Instructions
âš WARNING (California Proposition 65): WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov

Not CARB approved. This item is not legal for sale or use on pollution-controlled motor vehicles in California or states that adopt California emissions standards. Intended for off-road / competition use where permitted by law.















