K&N Engineering KNA-2031 18,000-Mile Replacement Air Filter for Nissan Pathfinder 3.5L V6, 2000-2020

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. 

Brief Description: The K&N Engineering KNA-2031 replacement air filter delivers long-life engine air filtration for select Nissan Pathfinder models equipped with a 3.5L V6 engine from 2000 through 2020. Designed for installation in the factory air box, this direct-replacement filter helps provide dependable airflow and engine protection without the routine replacement frequency of many conventional disposable filters.

Featuring premium synthetic or cellulose-blend filter media, depending on the application, the KNA-2031 is engineered to meet or exceed OEM specifications and provide up to 99% engine protection. Its approximately 18,000-mile service interval offers extended use for everyday driving, helping reduce maintenance interruptions while maintaining reliable filtration performance. The filter installs in minutes and typically requires no tools.

• What's Included: One K&N Engineering KNA-2031 replacement engine air filter.
• Fitment: Select Nissan Pathfinder applications with a 3.5L V6 engine, model years 2000-2020. Verify vehicle-specific fitment before purchase.
• Compliance Note: California emissions approval may require acknowledgement before installation. Review applicable local emissions requirements.

Key Product Specifications & Technical Data: Brand: K&N Engineering; Part Number: KNA-2031; Product Type: Replacement engine air filter; Vehicle Application: Nissan Pathfinder; Engine Application: 3.5L V6; Service Life: Approximately 18,000 miles; Filter Media: Premium synthetic or cellulose blend, application dependent; Installation Location: Factory air box.

Features:

• Long-Service Filtration: Designed for an approximately 18,000-mile service interval, reducing replacement frequency compared with many traditional disposable filters.
• Engine Protection: Premium filter media helps provide up to 99% engine protection against airborne contaminants.
• OEM-Style Fitment: Designed to meet or exceed OEM specifications for compatible Nissan Pathfinder applications.
• Easy Installation: Drops directly into the factory air box and typically requires no tools.

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