K&N Catch Can Oil Separator

2009–2023 Dodge Challenger, Dodge Charger, Chrysler 300 5.7L Hemi

Part #: 81-0806

Overview

The K&N Catch Can Oil Separator is a precision-engineered solution designed to protect your 5.7L Hemi engine from the harmful effects of blowby gases. Blowby occurs when combustion gases escape past the piston rings and enter the crankcase, carrying oil vapors that can contaminate the intake tract and reduce engine efficiency. This oil separator captures those vapors in a high-capacity reservoir, preventing oil buildup in the intake system and helping maintain optimal engine performance.

Specifically engineered to fit Dodge and Chrysler vehicles equipped with the 5.7L Hemi engine from 2009 through 2023, this K&N unit offers a reliable way to reduce power loss and potential engine damage caused by blowby. It is an ideal upgrade for enthusiasts and daily drivers alike who want to preserve engine health and improve longevity.

Key Features

The K&N Catch Can Oil Separator combines advanced engineering with user-friendly design to deliver effective crankcase ventilation management. Key features include:

• High-capacity oil reservoir that efficiently captures oil vapors and blowby gases
• Vehicle-specific design for a perfect fit on 2009–2010 Chrysler 300C, 2009–2023 Dodge Challenger, 2009–2023 Dodge Charger, and 2011–2023 Chrysler 300 with 5.7L Hemi engines
• Factory-style hose connections for quick snap-on and snap-off installation without modifications
• Replaces the factory crankcase ventilation line, allowing flexible mounting locations within the engine bay
• Tool-free reservoir access for easy inspection and oil draining
• Durable construction engineered to withstand harsh engine bay conditions
• Backed by K&N’s No-Hassle Lifetime Limited Warranty for peace of mind

Construction & Design

The K&N Catch Can Oil Separator is built with high-quality materials designed to endure the demanding environment of the engine bay. Its robust reservoir is crafted to hold a significant volume of oil vapors, reducing the frequency of maintenance. The unit’s design ensures a secure fit and seamless integration with factory hoses, maintaining the integrity of the crankcase ventilation system without requiring permanent modifications or custom fittings.

Every component is engineered specifically for the 5.7L Hemi applications, ensuring compatibility and optimal performance. The compact design allows for convenient mounting locations, making it easy to install without interfering with other engine components.

Installation & Fitment

Installation of the K&N Catch Can Oil Separator is straightforward and can be completed in approximately 30 minutes using basic hand tools. The product replaces the factory crankcase ventilation line and uses OEM-style hose connections that snap on and off quickly, eliminating the need for clamps or special adapters.

This catch can fits the following vehicles equipped with the 5.7L Hemi engine:

• 2009–2010 Chrysler 300C
• 2009–2023 Dodge Challenger
• 2009–2023 Dodge Charger
• 2011–2023 Chrysler 300

No permanent modifications are required, and the reservoir can be checked and emptied without tools, making routine maintenance hassle-free.

What's Included

• K&N Catch Can Oil Separator unit
• Vehicle-specific hose connections
• Mounting hardware for secure installation
• Instructions for installation and maintenance

Ideal For

This K&N Catch Can Oil Separator is ideal for Dodge and Chrysler 5.7L Hemi owners who want to protect their engine from blowby-related issues, maintain peak performance, and extend engine life. It suits enthusiasts who demand reliable, maintenance-friendly solutions as well as daily drivers seeking to preserve engine cleanliness and efficiency.

K&N is one of the most recognized names in performance filtration, offering reusable high-flow air filters, cold air intakes, and related filters for street and motorsports use. Their products are designed to improve airflow and serviceability—ideal for enthusiasts who want performance-oriented filtration and easy maintenance.