K&N Engineering 33-5138 High-Flow Replacement Air Filter for Ford E-350 Super Duty

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No-Hassle Lifetime Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product! K&N's replacement High-Flow Air Filters are designed to increase horsepower while providing exceptional engine protection, and are covered by K&N's No-Hassle Lifetime Limited Warranty. Associated products: 99-5000 Filter Care Service Kit Aerosol

• REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills

Upgrade your engine's air intake with the K&N Engineering 33-5138 High-Flow Replacement Air Filter. Designed as a direct replacement for the factory air filter, this reusable performance filter installs easily into the original air box without requiring modifications. Its layered, oiled cotton media is engineered to improve airflow while capturing contaminants, helping support increased horsepower and responsive engine performance.

Unlike disposable filters, the K&N 33-5138 is washable, reusable, and designed to provide service throughout the life of your vehicle when properly maintained. The durable construction helps reduce replacement waste, while K&N's No-Hassle Lifetime Limited Warranty provides added confidence. For filter maintenance, K&N recommends the 99-5000 Filter Care Service Kit Aerosol, sold separately.

Fitment: K&N Engineering part number 33-5138 fits 2021, 2022, 2023, 2024, 2025, and 2026 Ford E-350 Super Duty models. This automotive replacement filter is intended for use in the factory air box. It is not CARB approved and does not include an emissions exemption for California applications. Verify vehicle application before installation.

What's Included

• One K&N Engineering 33-5138 washable, reusable high-flow air filter

Features:

• High-Flow Air Filtration: Layered, oiled cotton media is engineered to improve airflow while capturing engine-damaging contaminants.
• Performance Upgrade: Designed to support increased horsepower and improved engine responsiveness compared with restrictive disposable filters.
• Washable and Reusable: Can be cleaned and reused throughout the life of the vehicle when maintained according to K&N recommendations.
• Easy Factory Replacement: Designed to install directly into the original air box without modification and backed by K&N's No-Hassle Lifetime Limited Warranty.

Fitments:
2021 Ford E-350 Super Duty Base
2022 Ford E-350 Super Duty Base
2023 Ford E-350 Super Duty Base
2024 Ford E-350 Super Duty Base
2025 Ford E-350 Super Duty Base
2026 Ford E-350 Super Duty Base

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