K&N High-Flow Original Lifetime Engine Air Filter

2011–2021 Jeep Grand Cherokee & 2011–2025 Dodge Durango 3.6L V6, 5.7L HEMI, 6.4L SRT/392

Part #: 33-2457

Overview

The K&N High-Flow Original Lifetime Engine Air Filter is a premium replacement designed to enhance the performance and efficiency of your Jeep Grand Cherokee or Dodge Durango equipped with 3.6L V6, 5.7L HEMI, or 6.4L engines. This air filter is engineered to increase horsepower and acceleration by improving airflow while maintaining superior filtration to protect your engine from harmful contaminants.

Ideal for enthusiasts and daily drivers alike, this washable and reusable filter offers a cost-effective upgrade that reduces maintenance frequency and environmental waste. Its direct-fit design ensures seamless integration with your vehicle’s factory air box and electronic systems without requiring any modifications.

Key Features

Designed with advanced filtration technology and durable materials, the K&N High-Flow Air Filter delivers reliable performance and longevity. Key features include:

• Increases horsepower and acceleration by optimizing airflow
• Layered oiled cotton gauze media traps dirt and contaminants efficiently
• Washable and reusable design typically lasts up to 75,000 miles before cleaning
• Direct drop-in replacement fits factory air box without modifications
• Maintains compatibility with OEM electronics and emission systems
• Emissions-compliant for legal use in most states
• Backed by K&N’s No-Hassle Lifetime Limited Warranty
• Reduces disposable filter waste, promoting environmental sustainability
• Provides up to 99% filtration efficiency for engine protection
• Durable construction engineered for long-term reliability under demanding conditions

Construction & Design

The K&N High-Flow Air Filter features multiple layers of premium oiled cotton gauze media, which is carefully pleated to maximize surface area for superior airflow and filtration. This design allows your engine to breathe easier while effectively capturing dirt, dust, and other airborne particles that can cause wear and reduce engine life.

The filter is housed in a robust frame that resists deformation and ensures a secure fit within the factory air box. The oiled cotton media is washable, allowing you to clean and reuse the filter multiple times, significantly extending its service life compared to conventional paper filters.

Performance & Sound

By improving airflow to the engine, the K&N High-Flow Air Filter enhances throttle response and can contribute to a noticeable increase in horsepower and acceleration. While designed primarily for performance and efficiency, it also helps maintain the natural engine sound without introducing unwanted intake noise.

Installation & Fitment

This air filter is engineered as a direct replacement for the factory air filter in 2011–2021 Jeep Grand Cherokee models with 3.6L V6, 5.7L HEMI, and 6.4L SRT engines, as well as 2011–2025 Dodge Durango models with 3.6L V6, 5.7L HEMI, and 6.4L 392 engines. Installation is straightforward and requires no modifications to the vehicle’s air box or related components.

Simply remove the old filter and drop the K&N filter into place, ensuring a proper seal. This ease of installation makes it an excellent upgrade for both professional mechanics and DIY enthusiasts.

What's Included

• K&N High-Flow Original Lifetime Engine Air Filter (Part #33-2457)
• Installation instructions
• Warranty information

Ideal For

This air filter is perfect for Jeep and Dodge owners seeking a reliable, long-lasting upgrade to improve engine performance and efficiency. It suits daily drivers, off-road enthusiasts, and anyone looking to reduce maintenance costs while protecting their engine with superior filtration technology.

Emissions Note

The K&N High-Flow Air Filter is emissions-compliant and designed to maintain your vehicle’s original emissions control systems. It will not void your vehicle’s warranty when installed according to manufacturer guidelines.

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.