K&N RO-3522 High-Flow Replacement Motorcycle Air Filter
The K&N RO-3522 is a high-flow replacement motorcycle air filter designed for compatible Royal Enfield 350 motorcycles. Engineered as a direct replacement for the factory air filter, it provides a reusable filtration solution while maintaining an application-specific fit within the original airbox.
High-Flow Performance
The RO-3522 uses K&N's cotton-gauze filtration media, designed to provide high airflow while capturing contaminants before they enter the engine. Its pleated construction provides a large filtration area and supports extended service intervals.
Washable and Reusable
Unlike conventional disposable filters, the RO-3522 is washable and reusable. The filter is supplied pre-oiled and ready for installation and can be periodically cleaned, re-oiled and returned to service.
Round Application-Specific Design
The filter features a round design with an application-specific sealing system for straightforward installation in compatible Royal Enfield motorcycles. It measures 102 mm in height with a 97 mm outside diameter and 51 mm inside diameter.
Royal Enfield 350 Application
The RO-3522 is designed for compatible Royal Enfield Hunter 350, Meteor 350 and Classic Reborn 350 motorcycles, providing a direct replacement option for the original air filter.