K&N YA-3502 High-Flow Air Filter for 1987-2006 Yamaha YFZ350 Banshee

Vehicle Fitment

• 1987-2006 Yamaha YFZ350 Banshee 350 (2-stroke)

Fitment Notes

• Designed for stock OEM airbox - verify airbox condition prior to installation.
• If intake or airbox has been modified, fitment may be affected; check flange inner diameter (3.625 in) for proper sealing.
• Jetting adjustments usually not required, but recommended if engine or exhaust modifications are present.

Features

• High-flow pleated cotton gauze media for enhanced airflow and throttle response 
• Washable and reusable construction - long service life and cost-effective replacement over stock disposable filters 
• Pre-oiled and ready to install out of the box 
• Application-specific sealing bead ensures direct OEM airbox fitment
• Pleated media provides large filtration surface for improved dust handling and longevity 
• Durable construction suited for off-road / powersports conditions 
• No fuel-management changes normally required with just filter replacement 
• CARB-compliant version available (where applicable) for street-legal use in regulated areas 

Specifications

• Filter Shape: Tapered conical / round as per OEM airbox requirement 
• Large End Diameter: 4.625 in (117 mm) 
• Flange Inside Diameter: 3.625 in (92 mm) 
• Overall Height: 6.75 in (171 mm) 
• Media: Multi-layer cotton gauze (pleated)
• Washable / Reusable: Yes 
• Filter re-oil amount (service): ~1.07 oz (32 ml) 
• Included: 1x air filter element

Included Components

• 1x K&N YA-3502 Air Filter (pre-oiled, ready to install)

Product Description

The K&N YA-3502 is a high-flow, washable and reusable replacement air filter engineered specifically for the Yamaha YFZ350 Banshee 350 (1987-2006). By replacing the stock foam or paper filter with a pleated cotton gauze element, this air filter enhances intake airflow - often resulting in improved throttle response and smoother engine performance while maintaining strong filtration for off-road and powersports use.

Featuring a tapered conical shape and a flanged sealing bead tailored for the OEM airbox, the YA-3502 installs directly without any modifications. Pre-oiled and ready to install, it offers the convenience of a drop-in replacement. For maintenance, simply clean and re-oil when needed; no disposable replacements are required, making it a durable, long-term solution for riders looking for performance and reliability.