K&N Engineering KNA-2443 18,000-Mile Replacement Air Filter for Lexus RX350 3.5L V6 2010-2017

K&N has been the #1 brand in High-Flow performance air filtration since 1969, delivering industry-leading performance and protection for whatever you drive. Now offering a long-life solution for everyday drivers, K&N’s proven technology is available in a premium 18,000-mile filter, providing long service life compared to traditional 12,000-mile disposable filters. Featuring a premium synthetic or cellulose-blend filter media (based on application), these filters deliver up to 99% engine protection. Designed to meet or exceed OEM specifications, they install easily into your factory air box in just minutes.

• EASY INSTALLATION: Drops directly into your factory air box, typically with no tools required. 

The K&N Engineering KNA-2443 replacement air filter provides long-life engine air filtration for select Lexus RX350 models equipped with the 3.5L V6 engine from 2010 through 2017. Designed as a direct replacement for the factory air filter, it installs in the original air box and typically requires no tools, helping simplify routine maintenance while preserving factory-style fit and function.

K&N engineered this filter for an extended service interval of up to 18,000 miles, offering a longer-lasting alternative to many traditional disposable filters. Depending on the application, the filter uses premium synthetic or cellulose-blend media to help capture contaminants and provide up to 99% engine protection. It is designed to meet or exceed applicable OEM specifications and supports dependable airflow for everyday driving.

• Feature: Direct-fit replacement for the factory air box
• Feature: Up to 18,000-mile service life under normal driving conditions
• Feature: Up to 99% engine protection from airborne contaminants
• Feature: Tool-free installation in most applications

Key Product Specifications & Technical Data

• Brand: K&N Engineering
• Part Number: KNA-2443
• Product Type: Automotive replacement air filter
• Vehicle Application: Lexus RX350
• Engine Application: 3.5L V6
• Model Years: 2010-2017
• Filter Media: Premium synthetic or cellulose-blend media, depending on application
• Installation Location: Factory air box

What's Included

One K&N Engineering KNA-2443 replacement engine air filter. Verify vehicle year, engine configuration, and application before installation. This product is intended for the listed automotive application and is designed as a direct replacement for the original-equipment-style filter.

Important: California emissions requirements may apply. Confirm legal use for your vehicle and location before purchase or installation. Always follow the vehicle manufacturer's recommended inspection and replacement procedures.

Features:

• Direct-fit replacement installs into the factory air box and typically requires no tools
• Long-life filter is designed for service intervals of up to 18,000 miles
• Premium filter media provides up to 99% engine protection from airborne contaminants
• Designed to meet or exceed applicable OEM specifications for select Lexus RX350 3.5L V6 applications

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