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The K&N Engineering RU-9920 universal clamp-on air filter is designed to fit a wide range of applications including racing vehicles, generators, snowmobiles, tractors, and radio-controlled cars. This versatile air filter features a durable, pliable rubber flange that absorbs vibrations and ensures a secure attachment, while also allowing for slight adjustments to fit between sizes. Its robust construction ensures reliable performance in demanding environments. The filter's design accommodates various angles and offset diameters, making it suitable for many different equipment setups.
Constructed for durability and ease of maintenance, the K&N RU-9920 is washable and reusable, providing long-term value and consistent airflow. The filter's dimensions facilitate compatibility with a broad spectrum of air intake systems, ensuring optimal filtration and engine performance. Whether used in racing, off-road, or industrial applications, this filter offers dependable filtration with minimal maintenance.
Manufactured by K&N Engineering, this universal filter meets the needs of professionals and enthusiasts seeking a high-quality, adaptable air filtration solution. Its user-friendly design ensures quick installation and removal, making it an excellent choice for those looking to enhance engine performance and longevity. The filter complies with Prop 65 standards and is not CARB-approved, but it requires acknowledgment of this status prior to installation, ensuring compliance with regulatory requirements. Overall, the K&N RU-9920 is an essential upgrade for any equipment requiring efficient, reusable air filtration.
Features:
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
