K&N YA-4350 High-Flow Air Filter - Yamaha ATV Replacement (1987-2005)

Vehicle Fitment

• 1987-2004 Yamaha YFM350X Warrior
• 1995-2005 Yamaha YFM350FX Wolverine 4x4
• 1998-2001 Yamaha YFM600 Grizzly 600
• 1995-1999 Yamaha YFM350R Raptor

Fitment Notes

• Fits only the Yamaha models and years listed above - verify exact year and model before purchase.
• Designed for OEM-airbox drop-in fitment; may not fit modified or aftermarket airboxes without modification.
• Not intended for use on invalid or unspecified models - check airbox dimensions if in doubt.

Features

• High-flow cotton gauze media to improve airflow and performance
• Washable and reusable design for extended service life
• Pleated media provides large filtration surface and long intervals between cleaning
• Pre-oiled and ready to ride - no extra prep needed
• Application-specific sealing bead for direct OEM airbox fitment
• Designed for off-road and ATV use under dusty or rugged conditions
• No fuel-management changes required under normal use
• Durable construction for long-term reliability

Specifications

• Filter Shape: Round / cylindrical-style air filter
• Media: Multi-layer cotton gauze (pleated)
• Washable / Reusable: Yes
• Outside Diameter: 3.625 in (92 mm)
• Inside Diameter: 2.625 in (67 mm)
• Height: 9.00 in (229 mm)
• Filter re-oil amount (when servicing): approx. 0.84 oz (25 ml)
• Package Quantity: 1x filter (pre-oiled, ready to install)

Included Components

• 1x K&N YA-4350 Air Filter (pre-oiled)
• 1x Sealing grease packet (as per K&N standard)

Product Description

The K&N YA-4350 is a high-flow, washable, and reusable air filter engineered specifically for select Yamaha ATVs. By replacing the restrictive stock paper filter with pleated cotton gauze media, the YA-4350 significantly increases airflow to the engine - improving throttle response and overall performance while maintaining excellent filtration for dusty, off-road environments.

Installation is simple: the filter drops directly into the OEM airbox using an application-specific sealing bead, requiring no modifications. The unit ships pre-oiled and ready to install - just drop it in and ride. For maintenance, simply clean, dry, and re-oil per K&N's maintenance procedure. For ATV owners seeking long-term reliability, improved airflow, and reduced maintenance costs compared to disposable filters, YA-4350 is a strong upgrade choice.