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The K&N Engineering knnAC-9518 High-Flow Air Filter is a replacement air filter for the 2018 and 2019 Textron Havoc X. It is engineered to increase airflow for improved horsepower, acceleration, and throttle response while helping protect the engine from airborne contaminants.
Built with premium oiled cotton gauze, this washable and reusable filter provides a precision OEM-style fit and rugged construction for demanding use. Its high dust-holding capacity is designed to support performance on the trail, in the dunes, or on the job.
The filter is sold as one unit. K&N lists the 99-5000 Filter Care Service Kit Aerosol as an associated product for filter maintenance. This product requires the applicable CARB acknowledgement before use where required.
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).
