K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5in H K&N Engineering KNNRG-1001BL
K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5in H K&N Engineering KNNRG-1001BL
K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5in H K&N Engineering KNNRG-1001BL
K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5in H K&N Engineering KNNRG-1001BL
K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5in H K&N Engineering KNNRG-1001BL
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K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5in H

KNNRG-1001BL
024844313324
Air Filters - Universal Fit
20+ Units In Stock - Ships Next Business Day
$ 41.99
$ 41.99

SKU: RG-1001BL | UPC: 024844313324

K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5in H

K&N RG-1001BL delivers high-flow filtration for racing vehicles radio-controlled cars generators snowmobiles tractors and custom intakes. Clamp-on design fits 4-inch ID tubes with stretchable rubber flanges up to 1/16 inch for precise secure mounting. Pre-oiled cotton gauze media increases horsepower acceleration and engine response while trapping contaminants.

Key Features

  • 4 Layers of Protection: Multiple layers of premium cotton gauze with tacking agent form intricate mesh to block trap dirt and harmful particles for long engine life
  • Clean Once Every 5 Years: Handles 75000 miles under highway conditions before cleaning based on 15000 annual miles saving time and maintenance costs
  • Easy Installation: Pre-oiled and ready to clamp on for immediate performance gains with minimal tools or modifications
  • Engineered Power: High-flow media design pulls in more clean air to boost horsepower acceleration and throttle response across RPM range
  • Rugged Construction: Durable chrome top molded rubber flanges and premium materials built to withstand vibration and last a lifetime

Product Notes

  • Flanges absorb vibration and stretch slightly for between sizes ensuring airtight seal
  • Washable reusable design reduces landfill waste versus disposable filters
  • Product weight 1.5 pounds ships in 8.25in x 8.19in x 6.81in box

Installation Notes

  • Professional installation recommended.
  • Clamp onto 4-inch inside diameter air intake tubes centered flange aligns easily
  • Compatible with rubber hose clamps included hardware not required for most setups

This Part Fits

Year Make Model Submodel
Universal Various Racing Vehicles All
Universal Various Generators All
Universal Various Snowmobiles All
Universal Various Tractors All
Universal Various Radio-Controlled Cars All

Why Choose K&N?

  • Proven leader in high-performance filtration for motorsports and powersports
  • Washable filters maintain flow over time without replacement costs
  • Precision engineering balances airflow and filtration for real-world gains

Frequently Asked Questions

  • Q: What intake sizes does RG-1001BL fit?
    A: Designed for 4-inch inside diameter flanges stretches up to 1/16 inch for custom or tapered tubes on racing setups generators and more
  • Q: What materials are used in construction?
    A: Chrome metal top blue cotton gauze media and pliable molded rubber flanges for vibration resistance and durability
  • Q: What warranty coverage applies?
    A: Backed by 1-Year Limited Warranty covering defects in materials and workmanship

Shipping & Handling

  • Method: Ground shipping
  • Availability: In stock - ships same or next business day
  • Packaging: Secure box 8.25 x 8.19 x 6.81 inches
  • Weight: 1.5 pounds

Request For Information

Have questions about K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5in H? Fill out the form below and we'll get back to you by the next business day.
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