Click to zoom in
SKU: E-2021 | UPC: 024844118912
K&N E-2021 Replacement Air Filter for BMW 118i 120i 320i 2005-2007
The K&N E-2021 is a washable high-flow replacement air filter for 2005-2007 BMW 118i 120i and 320i models with 2.0L N46 engines. This drop-in filter uses layered oiled cotton media to deliver more airflow for horsepower gains and better acceleration. Reusable design lasts vehicle lifetime with simple cleaning.
Key Features
- 4 Layers of Protection: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent create an intricate mesh to block and trap harmful contaminants.
- Clean Once Every 5 Years: Engine air filter needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on average 15,000 miles per year).
- Easy Installation: Pre-oiled and ready to drop into factory air box for one of the easiest cost-effective vehicle upgrades with quick performance gains.
- Engineered Power: State-of-the-art air filter media increases horsepower and acceleration while improving overall engine performance.
- Reduces Waste: Reusable filters cut down landfill waste from over 200 million disposable air filters and packaging each year.
- Saves Money: Washable reusable K&N air filter saves up to $125 versus multiple disposable filters over 200,000 miles of highway driving.
- Rugged Construction: Built with durable premium materials and state-of-the-art methods to last a lifetime.
- Lifetime Warranty: No-hassle lifetime limited warranty on stock replacement K&N air filters limitations apply.
Product Notes
- Pre-oiled for immediate use includes cleaning kit recommendation for maintenance.
- Inspect and clean every 75,000 miles or as needed based on driving conditions.
- Packaged in compact box dimensions 11.13 x 6.75 x 2.25 inches.
Installation Notes
- Professional installation recommended.
- Direct drop-in replacement no vehicle modifications required.
- Fits factory air box uses existing mounting hardware.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2011 | BMW | 118i | Base 2.0L L4 |
| 2005-2011 | BMW | 120i | Base 2.0L L4 |
| 2005-2007 | BMW | 320i | Base 2.0L L4 |
| 2005-2007 | BMW | 318i | Base 2.0L L4 |
| 2005-2007 | BMW | 316i | Base 1.6L L4 |
Why Choose K&N?
- Over 50 years engineering high-performance filtration for automotive enthusiasts.
- Layered oiled cotton design proven to increase airflow and protect engines.
- Precision fitment for BMW air boxes with reusable construction for long-term value.
Frequently Asked Questions
-
Q: Does the E-2021 fit 2005 BMW 118i 120i 320i?
A: Yes direct OEM replacement for 2005-2007 BMW 118i 120i 320i with N46 2.0L engines and compatible 1 Series 3 Series models. -
Q: What filter media is used in K&N E-2021?
A: 8-layer oiled cotton gauze media with proprietary K&N oil for high filtration efficiency and maximum airflow. -
Q: What warranty covers this air filter?
A: No-Hassle Lifetime Limited Warranty covers defects in materials or workmanship limitations apply see K&N for details.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Durable retail box 11.13 x 6.75 x 2.25 inches
- Weight: 1 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