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Outerwears K&N Pre-Filter RU-4720

Upgrade your engine's protection with an intake pre-filter from Outerwears. Made from silicone-impregnated micro-mesh for water resistance and dielectrically welded at the seams, these pre-filters can remove particles as small as .005" in diameter without noticeable restriction in the airflow to your engine. Material contains uniform micron-sized openings that allow air in and filter out the unwanted sand, dirt, clay and moisture.


  • Dyno and flow bench testing reveals no loss of horsepower or airflow when using this product
  • Keeps your engine safer in harsh conditions
  • Filters particles down to .005"
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Fitment Notes & Exceptions
  • Compatible with K&N filter number RU-4720 oval
  • 3.75" filter diameter
  • 6.25" filter length
  • Also compatible with Modquad Raptor 660 air flow kits for model years 2001-2005
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style Outerwears K&N Pre-Filter RU-4720 Item # 10208560 Store SKU Manufacturer Product # 20-1800-01 Availability In Stock: Ships within 24 hours
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