K&N Engineering 33-5118 High-Flow Replacement Air Filter for 2021–2023 Hyundai Elantra

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

• ULTIMATE LONGEVITY: No-hassle lifetime limited warranty on stock replacement K&N air filters- limitations apply

Upgrade your vehicle’s factory air filtration with the K&N Engineering 33-5118 High-Flow Replacement Air Filter. Designed as a direct drop-in replacement for the original equipment filter, it fits the factory air box in select 2021–2023 Hyundai Elantra applications with 1.6L or 2.0L four-cylinder engines. Its advanced layered, oiled cotton media is engineered to improve airflow while capturing contaminants that can affect engine performance.

The washable and reusable K&N 33-5118 filter is designed for long-term service and can help reduce the need for frequent disposable filter replacements. With proper maintenance using the associated K&N 99-5000 Filter Care Service Kit Aerosol, this performance air filter is engineered to last for the life of the vehicle. Installation is straightforward and requires no permanent modifications to the factory intake system.

Built for drivers seeking improved intake efficiency and dependable engine protection, the K&N Engineering 33-5118 combines reusable construction with K&N’s No-Hassle Lifetime Limited Warranty, subject to applicable limitations. This automotive replacement filter is intended for compatible Hyundai Elantra models and provides a practical performance upgrade for daily driving and long-term vehicle ownership.

Brief Description

A washable, reusable high-flow replacement air filter designed to fit the factory air box on select 2021–2023 Hyundai Elantra models with 1.6L or 2.0L L4 engines.

Key Product Specifications & Technical Data

• Brand: K&N Engineering
• Part Number: 33-5118
• Product Type: High-flow replacement air filter
• Vehicle Application: Select 2021–2023 Hyundai Elantra models
• Engine Compatibility: Select 1.6L and 2.0L L4 engines
• Filter Media: Layered, oiled cotton media
• Service Design: Washable and reusable
• Installation: Direct replacement in the factory air box

What’s Included

• One K&N Engineering 33-5118 replacement air filter

Features:

• High-Flow Performance: Layered, oiled cotton media is engineered to improve airflow and support increased horsepower.
• Washable and Reusable: Designed for repeated service to provide long-term value and reduce disposable filter replacement needs.
• Engine Protection: Helps capture airborne contaminants while maintaining efficient intake airflow.
• Direct-Fit Installation: Designed to install easily into the factory air box without permanent modifications.

Fitments:
2021 Hyundai Elantra Limited
2021 Hyundai Elantra N Line
2021 Hyundai Elantra SE
2021 Hyundai Elantra SEL
2022 Hyundai Elantra Limited
2022 Hyundai Elantra N Line
2022 Hyundai Elantra SE
2022 Hyundai Elantra SEL
2023 Hyundai Elantra Limited
2023 Hyundai Elantra N Line
2023 Hyundai Elantra SE
2023 Hyundai Elantra SEL
2024 Hyundai Elantra Limited
2024 Hyundai Elantra N Line
2024 Hyundai Elantra SE
2024 Hyundai Elantra SEL
2024 Hyundai Kona Limited
2024 Hyundai Kona N Line
2024 Hyundai Kona SE
2024 Hyundai Kona SEL
2025 Hyundai Elantra Limited
2025 Hyundai Elantra N Line
2025 Hyundai Elantra SE
2025 Hyundai Elantra SEL Convenience
2025 Hyundai Elantra SEL Sport
2025 Hyundai Kona Limited
2025 Hyundai Kona N Line
2025 Hyundai Kona N Line S
2025 Hyundai Kona SE
2025 Hyundai Kona SEL
2025 Hyundai Kona SEL Convenience
2025 Kia K4 EX
2025 Kia K4 GT-Line
2025 Kia K4 GT-Line Turbo
2025 Kia K4 LX
2025 Kia K4 LXS
2026 Hyundai Elantra Blue Hybrid
2026 Hyundai Elantra Limited
2026 Hyundai Elantra Limited Hybrid
2026 Hyundai Elantra SE
2026 Hyundai Elantra SEL Convenience
2026 Hyundai Elantra SEL Sport
2026 Hyundai Elantra SEL Sport Hybrid
2026 Hyundai Elantra SEL Sport Premium
2026 Hyundai Kona Limited
2026 Hyundai Kona SE
2026 Hyundai Kona SEL Premium
2026 Hyundai Kona SEL Sport
2026 Kia K4 EX
2026 Kia K4 GT-Line
2026 Kia K4 GT-Line Turbo
2026 Kia K4 LX
2026 Kia K4 LXS

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