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Keep Intake Tracts Cleaner with a Direct Fit Oil Separator
This 81-0808 air oil separator is a direct fit for the 2020-2021 Ford Explorer with the 3.0L EcoBoost. It captures oil and contaminants from crankcase blowby before they can build up in the intake tract, using a high capacity reservoir and factory style connections.
Key Features
- K&N 81-0808 air oil separator for the listed Ford Explorer application
- The exact 81-0808 configuration uses a serviceable 6 oz reservoir for this application
- Captures oil and contaminants from crankcase blowby
- Helps protect against intake tract buildup, power loss, and premature detonation
- 6 oz capacity reservoir that can be checked and emptied without tools
- Premium OEM style connectors and robust hoses
- Direct fit installation with approximately 30 minutes of installation time
- No Hassle Lifetime Limited Warranty from K&N Engineering
Fitment
| Years | Make | Model | Position | Requirements |
|---|---|---|---|---|
| 2020-2021 | Ford | Explorer | Crankcase ventilation | 3.0L EcoBoost. Direct fit application. Not legal for sale or use in California on a pollution controlled motor vehicle. |
Specifications
| Detail | Value |
|---|---|
| Manufacturer part number | 81-0808 |
| Product type | Air oil separator |
| Vehicle application | 2020-2021 Ford Explorer |
| Engine | 3.0L EcoBoost |
| Reservoir capacity | 6 oz capacity |
| Connectors | OEM style |
| Installation | Direct fit, approximately 30 minutes |
| Weight | 2.6 lb (1.2 kg) |
| Warranty | No Hassle Lifetime Limited Warranty |
| California restriction | Not legal for sale or use in California on a pollution controlled motor vehicle |
What's Included
- One K&N air oil separator assembly for the listed Ford Explorer application
About K&N
K&N Engineering develops filtration and air management products for automotive applications. This separator is engineered for the listed Ford Explorer application and combines a serviceable reservoir with direct fit connections.
FAQ
What is the 81-0808?It is a direct fit air oil separator for the Ford Explorer and engine application shown in the fitment table.
Which vehicle does this separator fit?It fits the 2020-2021 Ford Explorer with the 3.0L EcoBoost listed in the fitment table.
What does an air oil separator do?It captures oil and contaminants carried by crankcase blowby before they can collect in the intake tract.
How much can the reservoir hold?The reservoir capacity is 6 oz capacity. Check and empty it without tools as part of routine service.
What connections are used?The system uses premium OEM style connectors and robust hoses for the direct fit application.
What is included in the package?One K&N air oil separator assembly for the listed application is included. Do not substitute parts from another vehicle application.
How long does installation take?Plan for approximately 30 minutes with basic tools, then inspect the connections for secure engagement before driving.
Can it be sold or used in California?This application is not legal for sale or use in California on a pollution controlled motor vehicle.
What warranty is provided?K&N backs the separator with a No Hassle Lifetime Limited Warranty. Review the current warranty terms before installation.
Installation Instructions
- Confirm the 81-0808 part number, Ford Explorer application, and 3.0L EcoBoost before opening the package.
- Park the vehicle safely, allow the engine to cool, and disconnect any components required by the vehicle service procedure.
- Identify the factory crankcase ventilation line that the separator replaces and clean the connection areas.
- Remove the original line using the appropriate basic tools without damaging nearby hoses, wiring, or brackets.
- Position the separator in a secure engine bay location that leaves the reservoir accessible for service.
- Connect the supplied hoses and OEM style connectors in the correct flow direction and confirm every connection is fully seated.
- Check that the hoses are clear of hot, moving, and sharp components, then start the engine and inspect for leaks or loose connections.
- After the initial drive, recheck the routing and connection points, and empty the reservoir when service inspection shows it is needed.
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