Click to zoom in
SKU: 33-5121 | UPC: 024844394118
K&N 33-5121 Replacement Air Filter for 2021-2023 Hyundai Elantra Hybrid
Upgrade your 2021-2023 Hyundai Elantra Hybrid with the K&N 33-5121 replacement air filter. This washable high-flow filter uses layered oiled cotton media to deliver more airflow for increased horsepower and acceleration. It drops directly into your factory air box for a simple performance boost that lasts the life of your vehicle.
Key Features
- 4 Layers of Protection: Multiple layers of premium cotton gauze with a tacking agent create a mesh that traps contaminants while allowing maximum airflow.
- Clean Every 5 Years: Service only every 75,000 miles under normal highway driving, based on 15,000 miles per year.
- Easy Installation: Pre-oiled and ready to install in your factory air box for quick gains without tools or modifications.
- Engineered Power: Advanced media design increases horsepower, acceleration, and overall engine performance.
- Lifetime Durability: Reusable construction backed by K&N No-Hassle Lifetime Limited Warranty.
Product Notes
- Filter measures 9.5 in length x 7.938 in width x 1.063 in height.
- Wash and re-oil using K&N cleaning kit for long-term performance.
- Weight is 1.3 lb. ships in protective packaging.
Installation Notes
- Professional installation recommended.
- Remove factory filter and drop in K&N 33-5121. no modifications needed.
- Compatible with OEM air box hardware.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021 | Hyundai | Elantra | SEL Hybrid |
| 2021 | Hyundai | Elantra | Limited Hybrid |
| 2022-2023 | Hyundai | Elantra | Blue Hybrid |
| 2021-2023 | Hyundai | Elantra | Limited Hybrid |
Why Choose K&N?
- Proven leader in high-flow filtration for over 50 years.
- Reusable design cuts replacement costs and landfill waste.
- Precision-engineered for exact OEM fit and dyno-tested gains.
Frequently Asked Questions
-
Q: Does this fit my 2022 Hyundai Elantra Hybrid Blue?
A: Yes, the K&N 33-5121 fits 2022-2023 Elantra Blue Hybrid, Limited Hybrid, and 2021 SEL Hybrid models perfectly as a direct replacement. -
Q: What material is used in this filter?
A: Eight layers of oiled cotton gauze provide high airflow and filtration in a panel-style design. -
Q: What is the warranty coverage?
A: Backed by K&N No-Hassle Lifetime Limited Warranty for stock replacement air filters, with limitations applying.
Shipping & Handling
- Method: Standard ground shipping
- Availability: In stock - ships same or next business day
- Packaging: Secure box measuring 11.2 x 9.3 x 2.1 inches
- Weight: 1.3 lb
Air Filters
Air filters and intake filtration parts for cars, trucks, SUVs, Jeeps, and diesel platforms are stocked at Black Ops Auto Works. Shop direct-fit filters, drop-in replacement filters, universal clamp-on filters, cabin air filters, HVAC filters, engine breather filters, pre-filters, and velocity stacks for Hellcat, Trackhawk, TRX, Grand Cherokee, Challenger, Charger, Camaro, Corvette, Mustang, F-150, Tacoma, Tundra, BMW, and Honda platforms. Every product is filterable by year, make, model, trim, engine, and filter dimension so the correct part ships the first time. Black Ops Auto Works carries 3,397 air filter SKUs across direct-fit, universal, cabin, and pre-filter categories. What This Collection Covers Air filters remove dirt, dust, and debris from air entering the engine or cabin. This collection spans OE-style direct-fit and drop-in filters, universal cone and clamp-on filters for custom intakes, cabin and HVAC filters for interior air, engine breather filters for crankcase ...
View Air Filters Products
Air Filters - Drop In
Drop in air filters and replacement panel filters for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop reusable and dry media panel filters that fit directly into your factory air box from K&N, aFe, AEM, Injen, BMC, and GReddy for vehicles ranging from Corvette and Mustang to Porsche, BMW, and Ford Super Duty diesel trucks. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct filter ships the first time. Black Ops Auto Works carries 1,453 drop in air filter SKUs across dozens of vehicle platforms. What This Category Covers Drop in air filters replace the factory paper filter element inside your existing air box without changing the intake tubing or housing. This collection spans reusable oiled cotton filters, dry synthetic media filters, and OEM style replacement panels sized to fit factory air box dimensions across nearly every make and model. Reusable and Dry Media Options Reusable oiled cotton filters from K&...
View Air Filters - Drop In Products
K&N Engineering
K&N Engineering filters and intakes for Jeep, RAM, Dodge, Chevy, Ford, Toyota, BMW, and Cadillac platforms are stocked at Black Ops Auto Works. Shop cold air intakes, Aircharger and NextGen intake systems, reusable panel filters, drop-in filters, universal clamp-on filters, oil filters, cabin filters, fuel filters, and filter cleaning kits for HEMI, Cummins diesel, EcoBoost, and LS/LT engine builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 1,927 K&N Engineering SKUs across intake, filtration, and maintenance categories. What This Brand Covers K&N Engineering built its reputation on reusable, high flow air filtration. This collection spans complete cold air intake systems, direct fit replacement filters, universal clamp-on filters for custom builds, and maintenance items like oil filters, fuel filters, and cabin filters. Cold Air Intakes and Intake Systems K&am...
View K&N Engineering Products