• Trusted by Racers

    Professional-grade parts used trackside.

  • Real Support, Real People

    Expert help during business hours.

  • Secure Shopping

    Encrypted checkout & trusted payments.

  • Fast U.S. Shipping

    Orders ship quickly from regional warehouses.

K&N Marine Air Filter Vent Kit 5/8 inch Flange, 6 inch Height - Part Number KNNA85-1662

knn85-1662
In stock
Air Filters
$55.99
The K&N Marine Air Filter Vent Kit with a 5/8 inch flange and 6 inch height...
$55.99

K&N Marine Air Filter Vent Kit 5/8 inch Flange, 6 inch Height - Part Number KNNA85-1662

The K&N Marine Air Filter Vent Kit with a 5/8 inch flange and 6 inch height is designed to enhance your marine engine's ventilation system. Crafted by K&N Engineering, this vent adapter fits seamlessly between the top and bottom plates of a custom chrome air filter assembly, providing a secure and efficient connection. Its design allows for easy installation without the need for drilling into the filter base, simplifying maintenance and setup. The vent kit is ideal for marine applications where reliable breather hose connections are essential for optimal engine performance and longevity. Constructed with durable materials, it withstands harsh marine environments and maintains performance over time. This vent kit is an excellent choice for boat owners seeking to improve air flow and ensure proper ventilation within their custom air filter systems, contributing to smoother engine operation and reduced risk of contaminants entering the intake system. The product is not CARB approved but requires acknowledgment of CARB regulations, making it suitable for various marine engines that do not fall under strict emissions standards. Trust K&N Engineering's reputation for quality and durability with this specialized vent kit designed specifically for marine use, ensuring your engine's breathing system functions seamlessly in demanding conditions.

Features:

  • Mounts between top and bottom plates of a custom chrome air filter assembly for secure installation
  • Accommodates breather hoses without drilling into the filter base for ease of installation
  • Constructed with durable materials suitable for marine environments
  • Designed with a 5/8 inch flange and 6 inch height to fit various marine air filters
  • Requires CARB acknowledgment, not CARB approved, ensuring compliance with specific regulations
Read More
Read Less

Shipping

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.

Returns

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).

Your cart

×