K&N 21-23 Triumph Trident 660 Replacement Air Filter

You're getting a K&N replacement air filter, part number TB-6621, designed specifically for your 2021-2024 Triumph Trident 660. This isn't just a generic filter; it's built to drop right into your stock airbox, making installation straightforward. Its primary job is to let more air into your engine while still keeping out the dirt and debris that can cause wear.

What makes this K&N filter stand out is its construction. It uses multiple layers of woven cotton gauze media, pleated to give it a large surface area. This design offers low restriction, meaning your engine can breathe easier, which can lead to improved horsepower and torque. Because it's washable and reusable, you can clean it and reinstall it for years of service, saving you money on replacements over time. It comes pre-oiled and ready to install right out of the box.