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The K&N Engineering Universal Rubber Air Filter Part Number KNNU-3130 is designed to provide reliable airflow for a wide range of applications including racing vehicles, generators, snowmobiles, tractors, and RC cars. Crafted with durable, pliable rubber flanges, this filter absorbs vibrations and allows for secure attachment, even accommodating stretch adjustments of up to 1/16 inch for a precise fit. Its versatile design ensures compatibility with various angles and offset diameters, making it suitable for many equipment types. The filter's construction promotes longevity, as it is washable and reusable, reducing the need for frequent replacements and supporting eco-friendly practices. The 3 1/2-inch flange diameter and 7-inch height make it a versatile choice for aftermarket modifications or replacements in custom setups. Whether for high-performance racing or general use, this K&N filter offers dependable filtration and airflow efficiency. Its robust design ensures that it can withstand demanding environments while maintaining optimal performance over time. This filter does not require special shipping considerations, making it convenient for installation and maintenance. Designed for automotive and equipment applications, it is an excellent choice for those seeking a durable and adaptable air intake solution.
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).
