K&N RC-3680 Universal Clamp-On Oval Tapered Air Filter 2.44in Flange 4.5x3.75in

Vehicle Fitment

• Universal Fit - Designed for motorcycles, ATVs, powersports vehicles, racing applications, and any build with a 2.4375 in. oval intake requiring a clamp-on air filter

Fitment Notes

• This is a universal clamp-on filter - verify your intake tube outside diameter matches the flange inside diameter of 2.4375 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
• 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
• Oval tapered design provides expanded filter surface area for superior airflow and filtration
• 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
• Chrome metal top cap for a clean, finished appearance
• Made in the USA
• Backed by K&N's 10-Year/Million Mile Limited Warranty

Specifications

• Shape: Oval Straight / Tapered
• Flange Inside Diameter: 2.4375 in. (62 mm)
• Flange Length: 0.625 in. (16 mm)
• Flange Type: Centered (Single)
• Base Outside Length: 4.50 in. (114 mm)
• Base Outside Width: 3.75 in. (95 mm)
• Top Outside Length: 3.00 in. (76 mm)
• Top Outside Width: 2.00 in. (51 mm)
• Height: 6.00 in. (152 mm)
• Filter Material: Multi-layer oiled cotton gauze
• Filter Color: Red
• Top Style: Metal (Chrome)
• Inner Wire: No

Included Components

• 1x K&N RC-3680 Universal Clamp-On Oval Tapered Air Filter

Product Description

The K&N RC-3680 is a high-flow universal clamp-on oval tapered air filter built for motorcycles, powersports vehicles, and a wide range of performance applications. Its oval tapered profile delivers a large filter surface area in a compact 6-inch tall package, maximizing airflow and filtration efficiency across demanding on- and off-road environments. The multi-layer oiled cotton gauze construction flows significantly more air than any paper element, translating to sharper throttle response and improved horsepower output.

The centered 2.4375 in. rubber flange mounts securely onto matching intake tubes, absorbs vibration, and can be stretched slightly to fit in-between sizes or angled configurations. A chrome metal top cap adds a finished look to any build. Washable and reusable, the RC-3680 arrives pre-oiled and ready to install, and is backed by K&N's 10-Year/Million Mile Limited Warranty. Made in the USA, it's a reliable long-term upgrade for any application requiring a compact clamp-on oval filter.