K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5i - K&N Engineering RG-1001BL
K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5i - K&N Engineering RG-1001BL
K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5i - K&N Engineering RG-1001BL
K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5i - K&N Engineering RG-1001BL
K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5i - K&N Engineering RG-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
822 Units In Stock
$ 41.99
$ 41.99

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

  • Engineered Power: High-flow media design pulls in more clean air to boost horsepower acceleration and throttle response across RPM range.
  • Designed for 4-inch inside diameter flanges stretches up to 1/16 inch for custom or tapered tubes on racing setups generators and more.
  • Product weight 1.5 pounds ships in 8.25in x 8.19in x 6.81in box.
  • Clamp onto 4-inch inside diameter air intake tubes centered flange aligns easily.
  • Washable filters maintain flow over time without replacement costs.
  • Washable reusable design reduces landfill waste versus disposable filters.

Fitment

Fitment Status Universal or dimensional product
Required Verification Exact dimensions, media, connection, mounting interface, and companion part number

Specifications

Brand K&N Engineering
Manufacturer Part Number RG-1001BL
Product Type Air Filters - Universal Fit
Fitment Type Universal
Condition New

What's Included

One new K&N air filters - universal fit identified by manufacturer part number RG-1001BL. Hardware, adapters, clamps, hoses, filters, and service supplies are included only when stated for this exact product.

About K&N Engineering

K&N develops reusable air filtration, intake, oil filtration, fuel filtration, and related performance products for vehicle-specific and dimensional applications.

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Frequently Asked Questions

How do I confirm K&N RG-1001BL fits my setup?
Match every listed dimension, flange or thread size, media type, mounting interface, and companion component. A similar shape or outside dimension alone does not confirm compatibility.

Is K&N RG-1001BL washable and reusable?
Serviceability depends on the exact media used for this part number. Follow the K&N cleaning and oiling directions for this filter and never apply oil to media specified as dry.

What should be checked after installing K&N RG-1001BL?
Verify seals, clamps, fasteners, hoses, sensors, wiring, and surrounding clearance as applicable. Check for leaks or contact, then follow the manufacturer service and reinspection schedule.

Installation Instructions

  • 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
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