K&N High Flow Air Filter - HD-1499 Replacement — Harley-Davidson Softail Heritage Classic, Softail Fat Boy, Softail Deluxe (1999-2015)

K&N HD-1499 high-flow air filter for V-twin motorcycles, engineered with multi-layer pleated cotton-gauze media to increase airflow while maintaining filtration. Washable and reusable design drops directly into the OEM airbox without fuel management changes.

Features

• Multi-layer woven cotton gauze media for excellent filtration
• Pleated design provides large filtration area and extended service intervals
• Fits directly into OEM airbox with application-specific sealing bead
• Washable and reusable — pre-oiled and ready to install
• Made in the USA for over 40 years
• No fuel management modifications required

Specifications

• Brand: K&N
• Manufacturer Part #: HD-1499
• UPC: 024844071781
• Dimensions: 8.5 in L x 8.5 in W x 3.62 in H
• Weight: 1.41 lbs
• Country of Origin: USA

Fitment

Fits V-twin motorcycles with OEM airbox compatibility. Verify your specific model before ordering.

Frequently Asked Questions

Do I need to rejet or tune my bike after installing this filter?

No — K&N designed this filter to work in the stock airbox without requiring fuel management changes.

Is this filter washable?

Yes. The cotton-gauze element is washable and reusable. It comes pre-oiled and ready to ride.

How often should I service this filter?

Inspect at each oil change. Clean and re-oil when visibly dirty, typically every 50,000 miles depending on riding conditions.

Will this fit my specific V-twin motorcycle?

This part is designed for V-twin applications with compatible OEM airboxes. Check the K&N website or verify the part number matches your exact model before ordering.

What makes this filter flow more air than stock?

The pleated cotton-gauze design creates a larger filtration surface area while maintaining excellent air filtration for increased engine breathing.