K&N Universal Air Filter Chrome Round Tapered Red - 4in ID x 1.125in L x 5.5in H K&N Engineering KNNRG-1001RD-L
K&N Universal Air Filter Chrome Round Tapered Red - 4in ID x 1.125in L x 5.5in H K&N Engineering KNNRG-1001RD-L
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K&N Universal Air Filter Chrome Round Tapered Red - 4in ID x 1.125in L x 5.5in H

KNNRG-1001RD-L
024844345813
Air Filters - Universal Fit
20+ Units In Stock - Ships Next Business Day
$ 41.99
$ 41.99

SKU: RG-1001RD-L | UPC: 024844345813

K&N Universal Chrome Air Filter Round Tapered Red RG-1001RD-L High-Flow Performance

This K&N RG-1001RD-L clamp-on universal air filter features a chrome top and red oiled cotton gauze media in a round tapered design with 4in ID 1.125in flange length and 5.5in height. It fits custom cold air intake systems on cars trucks motorcycles and ATVs with 3in to 4in inlets using included adapters for versatile performance upgrades. Expect higher airflow than paper filters for added horsepower quicker throttle response and reusable filtration that cleans easily.

Key Features

  • Adjustable Flange Inside Diameter: Fits 4in 3.5in or 3in (102mm 89mm 76mm) inlets with included inserts for broad compatibility in custom setups
  • Dimensions: Top OD 4.75in (121mm) base OD 6.125in (156mm) overall OD 6in (152mm) height 5.5in (140mm) flange length 1.125in (29mm) for compact high-capacity airflow
  • Filter Material: Oiled cotton gauze traps dirt while allowing maximum air passage for consistent power gains over stock filters
  • Chrome Top and Red Filter: Durable metal chrome lid pairs with red media for striking visuals and vibration-resistant seal
  • Part Weight: 1.7lb (0.8kg) lightweight design eases handling during install

Product Notes

  • Verify intake piping matches 3in to 4in flange for secure clamp-on fit
  • Washable and reusable oil the media after cleaning to restore performance
  • Ships in compact box 7.75in H x 7.56in L x 6.38in W for fast delivery

Installation Notes

  • Professional installation recommended.
  • Clamp directly onto 3in 3.5in or 4in inlet tubing using included inserts no cutting required
  • Uses centered flange with molded rubber for tight vibration-proof seal

This Part Fits

Year Make Model Submodel
Universal Various Custom Intakes 3-4in Inlet Cars Trucks Motorcycles ATVs

Why Choose K&N?

  • Proven leader in high-flow filtration with real dyno-tested horsepower increases
  • Engineered for washable longevity outperforms disposables mile after mile
  • Precise rubber molding ensures airtight seals for engine protection

Frequently Asked Questions

  • Q: Does this fit my specific vehicle intake?
    A: Universal design works on any custom setup with 3in 3.5in or 4in inlet flange including imports muscle cars off-road trucks check your piping size
  • Q: What material is the filter made from?
    A: Oiled cotton gauze provides high-flow air intake with superior dust holding for repeated cleaning and oiling
  • Q: What warranty coverage applies?
    A: One-year limited warranty against defects in materials and workmanship includes multi-language instructions

Shipping & Handling

  • Method: Standard ground shipping
  • Availability: In stock - ships same or next business day
  • Packaging: Secure box 7.75in H x 7.56in L x 6.38in W
  • Weight: 1.7lb (0.8kg)

Request For Information

Have questions about K&N Universal Air Filter Chrome Round Tapered Red - 4in ID x 1.125in L 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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