K&N RU-4990 Universal Clamp-On Round Tapered Cotton Air Filter 3in Flange 6in OD

Regular price: $66.95
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In Stock: 70

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Product Specification:

SKU:KNNRU-4990

MPN: RU-4990

UPC: 024844101891

Weight: 1.5 lb

Inventory: 70

Type: Air Filters - Universal Fit

Vehicle Fitment

Universal Fit - Designed for performance vehicles, cold air intake systems, racing builds, and any application with a 3.00 in. intake tube requiring a wide-body clamp-on tapered air filter
Also used as a replacement filter element for K&N performance intake kits and Craven Speed F-car intake systems - verify your specific intake kit part number before ordering

Fitment Notes

This is a universal clamp-on filter - verify your intake tube outside diameter matches the flange inside diameter of 3.00 in. before purchasing
Rubber flange can be stretched up to 1/16 in. (1.5 mm) to accommodate in-between sizes or angled intake configurations
Note: despite the 3-inch flange, this filter has a wide 6-inch base OD - verify engine bay clearance before purchasing
Not a direct OEM replacement for a specific vehicle - confirm fitment by measuring your intake tube diameter

Features

Multi-layer oiled cotton gauze media delivers up to 50% more airflow than standard paper filters
Wide-body round tapered design - 6-inch base maximizes filter surface area for a 3-inch inlet
Ultra-strong molded pliable rubber flange absorbs vibration and provides a secure, leak-free attachment
Washable and reusable - engineered to last the lifetime of your build or vehicle
Pre-oiled and ready to install straight out of the box
Rubber top end cap for a clean, secure finish
Made in the USA
Backed by K&N's 10-Year/Million Mile Limited Warranty

Specifications

Shape: Round Tapered (Cone)
Flange Inside Diameter: 3.00 in. (76 mm)
Flange Length: 1.75 in. (44 mm)
Flange Type: Centered (Single)
Base Outside Diameter: 6.00 in. (152 mm)
Top Outside Diameter: 5.00 in. (127 mm)
Height: 5.563 in. (141 mm)
Filter Material: Multi-layer oiled cotton gauze
Filter Color: Red
Top Style: Rubber End Cap
Inner Wire: No

Included Components

1x K&N RU-4990 Universal Clamp-On Round Tapered Air Filter

Product Description

The K&N RU-4990 is a high-flow universal clamp-on round tapered air filter with a wide-body design relative to its 3-inch inlet - a 6-inch base diameter tapering to 5 inches at the top over a 5.563-inch height delivers a large cotton gauze surface area well-suited for performance cold air intakes, Craven Speed F-car intakes, and a wide range of K&N performance intake kits. The multi-layer oiled cotton gauze construction flows significantly more air than any paper element, translating to sharper throttle response and measurable horsepower gains across any compatible application.

The centered 3.00 in. rubber flange mounts securely onto matching intake tubes, absorbs vibration, and can be stretched slightly to fit in-between sizes. Washable and reusable, the RU-4990 arrives pre-oiled and is ready to install out of the box. It is backed by K&N's 10-Year/Million Mile Limited Warranty and made in the USA - making it a reliable, long-term filter for any performance intake application requiring a wide-diameter cone filter on a 3-inch inlet.