K&N Hi-Flow Original Engine Air Filter

2021–2024 Jeep Wrangler Unlimited JL Rubicon 392 HEMI

Part #: 33-5127

Overview

The K&N Hi-Flow Original Engine Air Filter is a premium replacement air filter designed specifically for the 2021 to 2024 Jeep Wrangler Unlimited JL Rubicon 392 equipped with the powerful HEMI engine. Engineered to enhance your vehicle’s breathing capabilities, this washable and reusable air filter improves airflow while effectively capturing harmful contaminants. Ideal for Jeep enthusiasts seeking to maintain or increase engine performance, the K&N Hi-Flow filter offers a long-lasting solution that supports horsepower gains and improved throttle response.

Built to last the lifetime of your vehicle, this high-performance air filter is a direct drop-in replacement for your factory air filter, making installation straightforward and hassle-free. Backed by K&N’s No-Hassle Lifetime Limited Warranty, it provides peace of mind alongside superior filtration and airflow benefits.

Key Features

Designed with advanced technology and quality materials, the K&N Hi-Flow Original Engine Air Filter delivers reliable performance and durability. Key features include:

• Washable and reusable design for long-term use and cost savings
• Layered, oiled cotton media engineered to maximize airflow while trapping dirt and debris
• Direct drop-in replacement for easy installation with no modifications required
• Improves horsepower and acceleration by enhancing engine breathing
• Durable construction designed to withstand harsh driving conditions
• Backed by K&N’s No-Hassle Lifetime Limited Warranty for confidence and reliability
• Engineered specifically for the Jeep Wrangler Unlimited JL Rubicon 392 HEMI (2021–2024)
• Environmentally friendly alternative to disposable paper filters

Construction & Design

The K&N Hi-Flow Original Engine Air Filter features a multi-layered cotton gauze media that is oiled to enhance filtration efficiency and airflow. This advanced cotton media is sandwiched between durable wire mesh screens that provide structural integrity and protect the filter from damage. The filter frame is constructed from high-quality, heat-resistant rubber to ensure a secure seal within the factory air box and maintain consistent performance under varying engine conditions.

Every component is engineered to meet or exceed OEM specifications, ensuring a perfect fit and reliable operation throughout the filter’s lifespan. The washable design allows for easy maintenance, enabling you to clean and re-oil the filter as needed without compromising performance.

Performance & Sound

By increasing the volume and quality of airflow to the engine, the K&N Hi-Flow Original Engine Air Filter helps unlock additional horsepower and improved throttle response. The enhanced airflow contributes to more efficient combustion, which can translate into better acceleration and overall engine performance. Additionally, the filter’s design may subtly enhance engine sound, providing a more aggressive intake note that complements the Jeep Wrangler’s rugged character.

Installation & Fitment

This K&N air filter is designed as a direct replacement for the factory air filter in the 2021–2024 Jeep Wrangler Unlimited JL Rubicon 392 HEMI. Installation is simple and requires no modifications or special tools. The filter fits securely into the existing air box, maintaining the factory air intake system’s integrity and ensuring optimal performance. Routine maintenance involves cleaning and re-oiling the filter at recommended intervals to sustain peak airflow and filtration efficiency.

What's Included

• K&N Hi-Flow Original Engine Air Filter (Part #33-5127)
• Installation instructions
• Warranty information

Ideal For

This air filter is ideal for Jeep Wrangler Unlimited JL Rubicon 392 owners who want to improve engine performance and longevity without sacrificing reliability. It suits enthusiasts who prefer a reusable, environmentally friendly air filter solution that delivers consistent airflow gains and enhanced horsepower. Whether you use your Jeep for daily driving, off-road adventures, or spirited highway cruising, this K&N filter provides dependable filtration and performance benefits tailored to your vehicle’s powerful HEMI engine.

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.