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SKU: RA-0500 / UPC: 024844006523
K&N Universal Clamp-On Air Filter (2-1/16" Flange / 3-1/2" OD / 4" Height)
The K&N is a high-flow universal clamp-on air filter designed for racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, ATVs, and custom intake applications. This compact filter features a 2-1/16" pliable rubber flange that securely clamps onto intake tubes while stretching up to 1/16" to accommodate slight variations in tube diameter.
The four-layer cotton gauze media delivers excellent airflow and filtration, while the washable and reusable design provides long-term performance and cost savings. Pre-oiled and ready to install, the RA-0500 is an ideal solution for high-performance and custom applications where space is limited.
Key Features
- High-Flow Cotton Gauze Media – Four layers of pleated, oil-charged cotton gauze for superior airflow and filtration
- Pliable Rubber Flange – Absorbs vibration and stretches to fit tubes from 2" to 2-1/8" in diameter
- Compact Size – 2-1/16" flange, 3-1/2" outer diameter, and 4" height for tight engine bays and custom setups
- Washable & Reusable – Clean with K&N cleaner and re-oil for repeated use without replacement
- Versatile Clamp-On Design – Works with straight or angled intakes on a wide variety of equipment
- Wire-Backed Support – Provides structural strength while maintaining high airflow
Specifications
| Detail | Value |
|---|---|
| Brand | K&N |
| Type | Universal Clamp-On Air Filter |
| Flange Inside Diameter | 2-1/16 inches |
| Outside Diameter | 3-1/2 inches |
| Height | 4 inches |
| Filter Media | 4 Layers of Cotton Gauze |
| Flange Material | Pliable Rubber |
| Country of Origin | United States |
| Warranty | K&N No-Hassle Lifetime Limited Warranty |
Whats Included
- K&N RA-0500 Universal Clamp-On Air Filter (Pre-Oiled)
Product Notes
- Designed for custom and universal applications (not vehicle-specific)
- Flange can stretch slightly to accommodate tubes between 2" and 2-1/8" in diameter
- Professional installation recommended for custom applications
This Part Fits
| Application | Notes |
|---|---|
| Universal / Custom | Racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, ATVs, and custom intake systems |
| Common Uses | High-performance engines, small engines, and custom fabrication projects |
Why Choose K&N Universal Filters?
- Industry leader in high-flow air filtration since 1969
- Proven performance in racing, powersports, and custom applications
- Washable and reusable design for long-term value
- Precision-engineered for maximum airflow and filtration efficiency
Frequently Asked Questions
- Q: What size intake tube does this filter fit?
- A: It is designed for 2-1/16" inside diameter tubes. The pliable rubber flange can stretch up to 1/16" to fit tubes from approximately 2" to 2-1/8".
- Q: Is this filter washable and reusable?
- A: Yes. Clean with K&N Air Filter Cleaner, re-oil with K&N Air Filter Oil, and air dry before reinstallation.
- Q: Can I use this on a street-driven vehicle?
- A: This is a universal filter intended for racing, custom, and small engine applications. It is not vehicle-specific and may not be emissions legal for street use in all areas.
- Q: What is the warranty on this filter?
- A: K&N offers a No-Hassle Lifetime Limited Warranty against defects in materials and workmanship.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact box (5" x 5" x 6") with protective foam insert
- Weight: 0.6 lb
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