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SKU: RX-4130-1 | UPC: 024844093950
K&N RX-4130-1 Universal X-Stream Clamp-On Air Filter 3.5in Flange ID 4in OD 5.75in Height
The K&N RX-4130-1 is a universal clamp-on air filter designed for custom intake systems and racing applications requiring a 3.5 inch inner flange diameter. This X-Stream model includes a pleated filter in the top section to increase surface area for greater airflow while maintaining strong dust protection. Racers rely on its low restriction design to pull in more air without sacrificing engine safety in dusty conditions.
Key Features
- X-Stream Top Design: Built-in pleated filter in the top adds extra media area to boost airflow and extend service life between cleanings
- Clamp-On Mounting: Secure attachment to 3.5 inch ID intake tubes using standard hose clamps with vibration-absorbing molded rubber flanges
- Stretchable Flanges: Pliable rubber flanges expand up to 1/16 inch (1.5mm) to fit in-between sizes for versatile installation
- Low Restriction Media: High-flow 4-layer cotton gauze pleats capture contaminants while allowing maximum air volume through
- Washable Reusable Construction: Clean with K&N oil and reuse indefinitely cutting long-term costs and downtime
Product Notes
- Molded rubber flanges handle vibration and ensure airtight seal on tubes from 3.5 to 3.5625 inches ID
- Ideal for off-road racing or high-performance setups needing protection from dirt and debris
- Net weight 1.3 lbs (0.59 kg) ships in compact protective box 7.75 x 7.5 x 7.25 inches
Installation Notes
- Professional installation recommended.
- Slide over 3.5 inch ID tube and tighten hose clamp (not included) to 20-30 in-lbs torque
- Compatible with centered flange mounts and most aftermarket intake tubing
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Custom Intakes | Racing Performance Builds |
| Universal | All | Off-Road Vehicles | Dirt Track Racing |
Why Choose K&N?
- Proven in millions of engines worldwide for reliable air filtration
- Engineered with precision for high-volume airflow in demanding conditions
- Durable materials backed by No-Hassle Lifetime Warranty
Frequently Asked Questions
-
Q: Will the RX-4130-1 fit my custom intake setup?
A: Yes it clamps onto 3.5 inch inner diameter tubes and stretches slightly to 3.5625 inches for broad compatibility in racing or performance applications -
Q: What filter media does it use?
A: 4-layer progressive density cotton gauze with epoxy-coated wire mesh support for balanced flow and particle capture down to 5 microns -
Q: What is the warranty and cleaning process?
A: Covered by K&N No-Hassle Lifetime Warranty wash every 50,000 miles or sooner in dirty environments using K&N cleaning kit
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective cardboard box 7.75in x 7.5in x 7.25in
- Weight: 1.3 lbs product 1.4 lbs shipping
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