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The K&N Engineering Universal Clamp-On Air Filter (Part Number RU-5135) is designed for versatile use across a wide range of applications including racing vehicles, generators, snowmobiles, tractors, and radio-controlled cars. Its adaptable design ensures compatibility with various air intake angles and offset diameters, making it a reliable choice for many equipment setups. The filter features an ultra-strong molded pliable rubber flange that absorbs vibrations, providing a secure and durable attachment. The flange can be stretched up to 1/16 inch (1.5mm), allowing for easy fitting in between size variations. Constructed with high-quality materials, this air filter delivers excellent airflow while maintaining filtration efficiency. Its washable and reusable design offers long-term value, reducing the need for frequent replacements and supporting environmentally friendly practices. The K&N RU-5135 is an ideal upgrade for those seeking a dependable, high-performance air filtration solution for custom, racing, or heavy-duty equipment, ensuring optimal airflow and engine performance in demanding conditions. Please note this product is not CARB-approved and requires acknowledgment of CARB regulations. It is not designated for air freight but complies with Prop 65 requirements, ensuring safety and environmental standards are met. Trust K&N Engineering for innovative and durable air filtration solutions tailored to your specific needs.
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).
