K&N RU-4480 Universal Clamp-On Air Filter 4.06" Flange, Washable

Vehicle Fitment

• Universal fit - designed to clamp onto intake pipe with approx. 4.06" (103 mm) inside-diameter flange

Features

• Universal clamp-on design fits a wide variety of vehicles and custom intake systems
• High-flow cotton gauze media engineered for increased horsepower and acceleration
• Washable and reusable filter for long-term value and reduced replacement cost
• Molded pliable rubber flange absorbs vibration and allows slight size variation (~1/16" / 1.5 mm)
• Tapered conical shape fits many intake configurations including offset and non-standard layouts
• Easy installation - simply slide onto the flange and clamp securely
• Reduces waste of disposable filters by using a reusable design
• Backed by manufacturer's 1-Year Limited Warranty

Specifications

• Flange inside diameter: 4.063 in (103 mm)
• Height: 2.188 in (56 mm)
• Large end outside diameter (base): 6.875 in (175 mm)
• Top outside diameter: 5.875 in (149 mm)
• Flange length: 0.75 in (19 mm)
• Filter media: Premium multi-layer cotton gauze
• Washable/reusable: Yes
• Weight: approx. 1.1 lb (0.5 kg)
• Warranty: 1-Year Limited

Included Components

• 1x Universal clamp-on air filter (Part No. RU-4480)
• Installation instructions/documentation

Product Description

The K&N RU-4480 Universal Clamp-On Air Filter offers a versatile upgrade for performance vehicles, custom builds and intake systems requiring a 4.06" (103 mm) flange diameter. With its high-flow cotton gauze media and reusable design, this filter is engineered to improve airflow while maintaining excellent filtration and longevity.

Installation is quick and straightforward: confirm your intake pipe has an approximate 4.06" inside-diameter flange, slide the RU-4480 over the flange, clamp securely, and you're ready. Its molded rubber flange helps absorb vibration and accommodate slight size discrepancies. Because this is a universal-fit part (not specific to a particular make/model/year), ensure there is sufficient clearance in your engine bay or intake layout before installation.