K&N Air Filter // 1990-2000's Polaris 250/350/400 ATV // Scrambler, Sport, Trail Blazer, Trail Boss, etc.

SKU: RU-1030
Price: $67.89

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K&N off-road air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. Generally, no jet changes are required with just a K&N filter element. K&N replacement air filters are washable and reusable and provide high air-flow with excellent filtration.

  • Designed to provide increased horsepower and acceleration
  • Specifically developed for Off-Road, Motocross, ATVs, UTVs and Side by Sides
  • Pleated cotton media provides a large filtration area offering low restriction, high-capacity and long service intervals
  • Multiple layers of woven cotton gauze media offers excellent filtration
  • No fuel management modifications are required to obtain increased performance
  • Washable & reusable, most are pre-oiled and ready to ride!
  • One Year Limited Warranty


K&N part number RU-1030

Fits the Following models:

1990's-2000's Polaris 250 , 350 , and 400 2-stroke ATV's such as Trail Blazer, Trail Boss, Sport, Scrambler and others. This filter would replace the stock airbox and clamp directly to the carburetor for these applications. The filter has an ID of 1.75" or 44mm- please verify the size of your carb flange before purchasing for these models.

Also a direct replacement for the OEM filter on:

1986 YAMAHA YTM225 TRI-MOTO 225 - All        
1985 YAMAHA YTM225 TRI-MOTO 225 - All        
1984 YAMAHA YTM225 TRI-MOTO 225 - All        
1983 YAMAHA YTM225 TRI-MOTO 225 - All

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Outerwears Pre-Filters are a must when riding in dusty or wet conditions. They greatly reduce dirt and mud build-up in the filter pleats to keep your filters cleaner and extend the service intervals.

These items are intended for closed-course competition only. Alternation of emissions-related components can constitute violation of federal and/or state laws. Substantial fines and penalties can result if used for other than closed-course competition use.