K&N Universal Round Tapered Filter 3 inch FLG / 5 inch Bottom / 4 inch Top / 7 7/8 inch Height - K&N Engineering KNNRU-4690
K&N Universal Round Tapered Filter 3 inch FLG / 5 inch Bottom / 4 inch Top / 7 7/8 inch Height - K&N Engineering KNNRU-4690
K&N Universal Round Tapered Filter 3 inch FLG / 5 inch Bottom / 4 inch Top / 7 7/8 inch Height - K&N Engineering KNNRU-4690
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K&N Universal Round Tapered Filter 3 inch FLG / 5 inch Bottom / 4 inch Top / 7 7/8 inch Height

$ 104.99
$ 104.99

K&N RU-4690 universal clamp-on air filter features a 3 inch flange 5 inch bottom diameter 4 inch top diameter and 7 7/8 inch height for versatile intake setups. Designed for racing vehicles generators snowmobiles tractors and fits Jeep Cherokee 1991-2001 Grand Cherokee 1993-1998 BMW 3-Series 1992-1999 M3 1995-1999. Provides increased airflow for higher horsepower acceleration and engine performance while trapping contaminants with washable reusable media.

Key Features

  • Universal Fitment: Fits wide range of applications regardless of intake angle or offset diameter with stretchable rubber flanges up to 1/16 inch for secure vibration-absorbing attachment.
  • Engineered Power: State-of-the-art media increases horsepower acceleration and overall engine performance.
  • Clamp-on style attaches directly to 3 inch intake pipe.
  • Over 60 years developing high-flow air filters for automotive motorsports.
  • Yes fits 1996-1999 BMW 328i Base and other listed 3-Series models with 3 inch intake.
  • Flanges constructed with molded pliable rubber to absorb vibration and stretch for in-between sizes.

Fitment

Years Make Model Application
1998-1999 BMW 323is Verify engine and application notes
1992-1995 BMW 325i Verify engine and application notes
1992-1995 BMW 325is Verify engine and application notes
1996-1999 BMW 328i Verify engine and application notes
1996-1999 BMW 328is Verify engine and application notes
1995-1999 BMW M3 Lightweight
1991-2001 Jeep Cherokee Briarwood, Classic, Country, Laredo, Limited, SE, Sport
1993-1998 Jeep Grand Cherokee Limited, Orvis, SE, TSi

Specifications

Brand K&N Engineering
Manufacturer Part Number RU-4690
Product Type Air Filters - Universal Fit
Fitment Type Vehicle Specific
Condition New

What's Included

One new K&N air filters - universal fit identified by manufacturer part number RU-4690. 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 RU-4690 fits my vehicle?
Match the year, make, and model in the fitment table, then confirm the engine, factory housing, sensor layout, emissions notes, and any application restrictions stated for this exact part.

Is K&N RU-4690 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 RU-4690?
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-on style attaches directly to 3 inch intake pipe
  • Compatible with rubber clamps hardware included for secure mounting
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