K&N Filters air filter details
K&N Filters Replacement Air Filter for Royal Enfield – Rubber Top – Round (KNNRO-3522)
The K&N Filters Replacement Air Filter for Royal Enfield – Rubber Top – Round (KNNRO-3522) is designed specifically to fit Royal Enfield motorcycles, ensuring optimal air flow and engine performance. Crafted with a durable rubber top and precise dimensions, this round air filter replacement offers long-lasting reliability and easy installation. Whether you are maintaining your bike or upgrading your stock filter, this K&N air filter provides excellent filtration while improving engine efficiency. Perfect for riders seeking genuine replacement parts for their Royal Enfield.
Features and Specifications:
Vehicle Fitment: Compatible with various Royal Enfield motorcycles (2021+).
Inside Diameter: 2 in (51 mm)
Outside Diameter: 3.813 in (97 mm)
Height: 4 in (102 mm)
Top Style: Rubber
Air Filter Shape: Round
Performance Boost: Increases horsepower and torque for enhanced engine output.
Extensive Filtration: Pleated media offers extended service intervals.
Superior Filtration: Multiple layers of woven cotton gauze for excellent contaminant capture.
Custom Fit: Application-specific base seal and sealing bead ensure a precise fit.
American Made: Manufactured in the USA for over 40 years.
Reusable Design: Washable, pre-oiled, and ready for immediate use.
Product identification
- Brand: K&N Filters
- Model / MPN: KNNRO-3522
Air filter replacement: see the listed specifications for this model.




