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The K&N Engineering Universal Chrome Air Filter, part number knnRC-4580, is engineered to deliver optimal airflow and filtration for a variety of applications including racing vehicles, generators, snowmobiles, tractors, and radio-controlled cars. Its versatile design ensures compatibility with many engine setups, regardless of the angle or offset diameter of the air intake. The durable construction features a chrome finish that not only enhances the aesthetic appeal but also provides corrosion resistance, making it suitable for both indoor and outdoor use. The filter's compact size makes it easy to install in tight spaces, while its reinforced rubber flanges absorb vibration and ensure a secure fit. These flanges are molded with pliable rubber that can stretch up to 1/16 inch (1.5mm), accommodating slight variations in intake sizes for a snug, reliable connection. This universal air filter is washable and reusable, allowing for long-term use and cost savings through maintenance instead of replacement.
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).
