K&N 33-5107 Engine Air Filter

High-Flow Replacement Air Filter

K&N 33-5107 is a washable, reusable engine air filter built as a drop-in replacement for the factory air box. It uses layered, oiled cotton gauze to improve airflow while capturing contaminants, and it is pre-oiled for service-ready installation.

Compatible with Buick Encore GX, Buick Envista, Chevrolet Trailblazer, and Chevrolet Trax applications, this panel-style filter is shaped for direct factory air box use. The flexible frame helps the filter seat properly, while the reusable design supports long service life. K&N 33-5107 is backed by a 10-Year/Million Mile Limited Warranty.

• Washable, reusable cotton gauze media
• Panel-style filter for factory air box replacement
• Pre-oiled and ready for service
• Flexible frame design for a secure fit
• Backed by a 10-Year/Million Mile Limited Warranty

Fitment Details

Fits 2020-2026 Buick Encore GX, N/A. Fits 2024-2026 Buick Envista, N/A. Fits 2021-2022 Chevrolet Trailblazer, N/A. Fits 2023-2026 Chevrolet Trailblazer, N/A. Fits 2024-2026 Chevrolet Trax, N/A.

What It Helps Address

• Restricted airflow from a dirty or clogged engine air filter
• Loss of filtration efficiency in a worn paper element
• Frequent replacement needs from disposable filter media
• Factory air box service on supported Buick and Chevrolet models

Installation Notes and Tips

Install this filter in the factory air box following the vehicle service procedure. Verify the air box is clean before installation, and re-oil the filter with the specified amount during future maintenance. Confirm the application against the vehicle fitment list before ordering.

Quality Assurance

K&N designs this replacement filter as a reusable performance part with a 10-Year/Million Mile Limited Warranty. Part number 33-5107 is also cross-referenced to 42712666 for the same application.