Click to zoom in
K&N Engineering 81-0812
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
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2025 | Chevrolet | Silverado 2500 HD | Custom |
| 2020-2025 | Chevrolet | Silverado 2500 HD | High Country |
| 2020-2025 | Chevrolet | Silverado 2500 HD | LT |
| 2020-2025 | Chevrolet | Silverado 2500 HD | LTZ |
| 2020-2025 | Chevrolet | Silverado 2500 HD | WT |
| 2024-2025 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2020-2025 | Chevrolet | Silverado 3500 HD | High Country |
| 2020-2025 | Chevrolet | Silverado 3500 HD | LT |
| 2020-2025 | Chevrolet | Silverado 3500 HD | LTZ |
| 2020-2025 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2025 | GMC | Sierra 2500 HD | AT4 |
| 2024-2025 | GMC | Sierra 2500 HD | AT4X |
| 2020-2021 | GMC | Sierra 2500 HD | Base |
| 2020-2025 | GMC | Sierra 2500 HD | Denali |
| 2022-2025 | GMC | Sierra 2500 HD | Pro |
| 2020-2025 | GMC | Sierra 2500 HD | SLE |
| 2020-2025 | GMC | Sierra 2500 HD | SLT |
| 2020-2025 | GMC | Sierra 3500 HD | AT4 |
| 2020-2021 | GMC | Sierra 3500 HD | Base |
| 2020-2025 | GMC | Sierra 3500 HD | Denali |
| 2022-2025 | GMC | Sierra 3500 HD | Pro |
| 2020-2025 | GMC | Sierra 3500 HD | SLE |
| 2020-2025 | GMC | Sierra 3500 HD | SLT |
Read More
K&N Engineering 81-0812 Specifications
81-0812
KNN81-0812
024844401366
6
Oil Separators
This item is CARB restricted and cannot be shipped to California
customers are viewing this product
K&N Engineering 81-0812 Specifications
Is this item in stock?If it is purchasable it is unstock and available for shipment as soon as today.
How long will it take to get it?
Shipping to US addresses generally takes 2 to 4 business days to arrive depending on your location. We also offer Next Day Air and 2nd Day Air if you need it faster.
International shipping is subject to import duties and taxes and we usually see 4 day to 2 week ship times to most locations outside the USA.
Does this fit my vehicle?
We have fitment charts in most of our vehicle specific products. If you do not see your vehicle, please do not hesitate to ask via chat or contact form.
What is your Return Policy?
Our return policy can be found here: Return Policy
K&N Engineering 81-0812 - Oil Separators
K&N 20-23 GM 2500/3500 6.6L Oil Separator Catch Can
🚚 Free US Ground Shipping on Orders Over $100
2
sold in last
8
hours
The K&N Air Oil Separator protects the engine and intake tract from blowby by capturing the oil in our industry...
6
This item is CARB restricted and cannot be shipped to California
Have Questions? Need help? Chat is the fastest!
-
Guaranteed Fitment
Always the correct part
-
Performance Parts Experts
Aftermarket performance parts
-
Low Low Prices
Great price on performance parts!
-
Free Shipping On Orders Over $100
To the lower 48 US States
