Uni Filter NU-3248ST Multi-Stage Competition Air Filter for Yamaha ATV

The Uni Filter NU-3248ST is a high-performance dual-stage foam air filter engineered for Yamaha ATV applications. This competition-grade replacement filter delivers superior engine protection and maximum airflow in the harshest off-road conditions.

Multi-Stage Filtration Technology:

• Two-stage foam design traps dirt and dust in separate layers for superior protection
• Coarse outer pre-filter layer captures larger particles and debris
• Fine pore inner filter element prevents engine-damaging grit from reaching the cylinder
• Open cell polyurethane foam construction allows entire filter thickness to be utilized
• Prevents surface loading and air restriction for 80% of filter service life

Performance Benefits:

• Provides unsurpassed airflow compared to paper filters
• Seamless design maximizes air flow to the engine
• Biodegradable foam material
• Direct OEM replacement fits perfectly in stock airbox
• Reusable, washable, and re-oilable for long-term value

How It Works: The open cell polyurethane foam is treated with specially developed filter oil. The sticky oil is suspended on the web-like cell structure strands, making it virtually impossible for dirt to pass through. As outer strands load with particles, downstream strands continue trapping dirt, utilizing the full filter depth. When dirty, simply wash with Uni Cleaner, re-oil with Uni Filter Oil, and reuse.

Replaces Yamaha OEM part number 5UH-E4451-10-00. For best results, use with Uni Filter Oil and Uni Filter Cleaner (sold separately).