K&N Engineering 81-0802 Air Oil Separator for 2018-2021 Ford Mustang GT 5.0L V8

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. 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.

• No-Hassle Lifetime Limited Warranty

The K&N Engineering 81-0802 Air Oil Separator is designed for 2018-2021 Ford Mustang GT models equipped with the 5.0L V8 gasoline engine. It helps protect the engine and intake tract from crankcase blowby by capturing oil and other contaminants before they can recirculate through the intake system. By reducing oil buildup, this separator can help support consistent engine performance and reduce the risk of power loss associated with blowby.

Engineered specifically for the applicable Mustang application, the K&N air oil separator installs in approximately 30 minutes using basic hand tools. Factory-style hose connections provide a quick snap-on installation and removal, while the supplied design replaces the factory crankcase line and allows the separator to be positioned conveniently within the engine bay. The high-capacity collection reservoir can be checked and emptied without tools, simplifying routine maintenance.

Key Product Specifications & Technical Data

• Brand: K&N Engineering
• Part Number: 81-0802
• Product Type: Air oil separator
• Application: Automotive
• Vehicle Fitment: 2018-2021 Ford Mustang GT
• Engine Fitment: 5.0L V8 gasoline engine
• Installation: Approximately 30 minutes with basic tools
• Warranty: K&N No-Hassle Lifetime Limited Warranty

What's Included in the Box

• K&N Engineering 81-0802 air oil separator assembly
• Vehicle-specific mounting and hose connection components
• Installation hardware, as applicable

Fitment

Fits select 2018, 2019, 2020, and 2021 Ford Mustang GT models with the 5.0L V8 gasoline engine. Verify vehicle year, model, engine, and configuration before ordering. This product is not CARB approved and may not be legal for use on emissions-controlled vehicles in certain areas.

Features:

• Blowby Protection: Captures oil from crankcase vapors before it reaches the engine intake tract, helping reduce contamination and support consistent performance.
• High-Capacity Reservoir: Collects separated oil and contaminants in a reservoir designed for convenient inspection and emptying without tools.
• Vehicle-Specific Installation: Engineered for compatible Ford Mustang GT 5.0L V8 applications and installs in approximately 30 minutes with basic tools.
• Factory-Style Connections: Uses quick snap-on hose connections and replaces the factory crankcase line for a clean, practical installation.

Fitments:
2018 Ford Mustang GT
2018 Ford Mustang GT Premium
2019 Ford Mustang Bullitt
2019 Ford Mustang GT
2019 Ford Mustang GT Premium
2020 Ford Mustang Bullitt
2020 Ford Mustang GT
2020 Ford Mustang GT Premium
2021 Ford Mustang GT
2021 Ford Mustang GT Premium
2021 Ford Mustang Mach 1
2022 Ford Mustang GT
2022 Ford Mustang GT Premium
2022 Ford Mustang Mach 1
2023 Ford Mustang GT
2023 Ford Mustang GT Premium
2023 Ford Mustang Mach 1

Air Freight Prohibited: false
Not Carb Approved: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1