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K&N RU-3220 universal clamp-on air filter fits racing vehicles radio-controlled cars generators snowmobiles tractors and custom intakes with 5 inch flange inside diameter 6.5 inch outside diameter and 10 inch height. Pliable rubber flanges absorb vibration stretch up to 1/16 inch for secure fit and handle any angle or offset. Pre-oiled cotton gauze media increases horsepower acceleration and engine performance while trapping contaminants.
Key Features
- Compatible with custom intakes centered flange 1.5in length.
- Yes designed for universal clamp-on use on intakes with 5in ID regardless of angle or offset diameter rubber flanges ensure secure vibration-free attachment.
- Easy Installation: Pre-oiled ready-to-use clamp-on design delivers quick performance gains as one of the simplest vehicle upgrades.
- Engineered Power: State-of-the-art media boosts horsepower acceleration and overall engine performance.
- Flanges stretch up to 1/16 inch (1.5mm) to fit in-between sizes.
- Clamp-on design secures to 5in ID intake pipe no tools required beyond clamp.
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 | RU-3220 |
| 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 RU-3220. 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.
Related K&N Engineering Products
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Frequently Asked Questions
How do I confirm K&N RU-3220 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 RU-3220 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-3220?
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 design secures to 5in ID intake pipe no tools required beyond clamp
- Compatible with custom intakes centered flange 1.5in length
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