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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.
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
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 | RA-0500 |
| 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 RA-0500. 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
- Shop all K&N Engineering products
- K&N Universal Clamp-On Air Filter 2-3/4in FLG / 4-11/16in B / 3-1/2in T / 4-7/8in H
- K&N Universal Clamp-On Air Filter 2-3/4in FLG / 5-1/16in B / 3-1/2in T / 4-3/8in H
- K&N Universal Clamp-On Air Filter 2-7/16in FLG / 3-1/2in OD / 6in H
Frequently Asked Questions
How do I confirm K&N RA-0500 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 RA-0500 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 RA-0500?
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
- Use the current K&N instructions for part number RA-0500 and follow all vehicle, product, and service precautions.
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