K&N Engineering HD-1388 High-Flow Replacement Air Filter for Harley-Davidson Sportster

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle. K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance.

• Pleated media provides a large filtration area offering long service intervals
• Multiple layers of woven cotton gauze media offers excellent filtration
• Designed to provide increased horsepower and torque
• Washable & reusable, pre-oiled and ready to ride
• Application specific base seal and sealing bead
• No-Hassle Lifetime Limited Warranty
• Made in the USA for over 40 years

Upgrade your Harley-Davidson Sportster with the K&N Engineering HD-1388 high-flow air filter, designed specifically to enhance engine performance while providing long-lasting filtration. Crafted with pleated media, this filter offers a large surface area that enables extended service intervals and efficient airflow. Multiple layers of woven cotton gauze media ensure excellent filtration, trapping dirt and debris while maintaining optimal airflow to your engine. This design helps increase horsepower and torque, giving your motorcycle improved acceleration and power delivery. The filter is washable and reusable, pre-oiled, and ready to install, making maintenance straightforward and cost-effective. An application-specific base seal and sealing bead guarantee a secure fit, preventing unfiltered air from bypassing the filter. Built in the USA for over 40 years, K&N filters are trusted for durability and performance. The HD-1388 is a perfect replacement for stock filters on select Harley-Davidson Sportster models from 1988 to 1990, ensuring a precise fit and reliable operation. Backed by a no-hassle lifetime limited warranty, this filter provides peace of mind and confidence in your motorcycle’s filtration system. Whether you're replacing a worn-out filter or seeking to improve your bike’s performance, the K&N HD-1388 delivers high-quality filtration designed for power and longevity. It is important to note that this product is not CARB approved but requires acknowledgment of compliance during installation. Made in the USA, this filter combines quality craftsmanship with performance benefits for your Harley-Davidson Sportster.

Features:

• Pleated media provides a large filtration surface for long service life

• Multiple layers of woven cotton gauze media for excellent filtration efficiency

• Designed to increase horsepower and torque

• Washable and reusable, pre-oiled and ready for installation

• Application-specific base seal and sealing bead for a secure fit

• Made in the USA with over 40 years of manufacturing experience

• Backed by a no-hassle lifetime limited warranty

Fits
Harley Davidson XL1200C Sportster 1200 Custom Base 1996
Harley Davidson XL1200C Sportster 1200 Custom Base 1997
Harley Davidson XL1200C Sportster 1200 Custom Base 1998
Harley Davidson XL1200C Sportster 1200 Custom Base 1999
Harley Davidson XL1200C Sportster 1200 Custom Base 2000
Harley Davidson XL1200C Sportster 1200 Custom Base 2001
Harley Davidson XL1200C Sportster 1200 Custom Base 2002
Harley Davidson XL1200C Sportster 1200 Custom Base 2003
Harley Davidson XL1200S Sportster 1200 Sport Base 1996
Harley Davidson XL1200S Sportster 1200 Sport Base 1997
Harley Davidson XL1200S Sportster 1200 Sport Base 1998
Harley Davidson XL1200S Sportster 1200 Sport Base 1999
Harley Davidson XL1200S Sportster 1200 Sport Base 2000
Harley Davidson XL1200S Sportster 1200 Sport Base 2001
Harley Davidson XL1200S Sportster 1200 Sport Base 2002
Harley Davidson XL1200S Sportster 1200 Sport Base 2003
Harley Davidson XL883C Sportster 883 Custom Base 2002
Harley Davidson XL883C Sportster 883 Custom Base 2003
Harley Davidson XL883R Sportster 883 Roadster Base 2002
Harley Davidson XL883R Sportster 883 Roadster Base 2003
Harley Davidson XLH1200 Base 1988
Harley Davidson XLH1200 Base 1989
Harley Davidson XLH1200 Base 1990
Harley Davidson XLH1200 Base 1991
Harley Davidson XLH1200 Base 1992
Harley Davidson XLH1200 Base 1993
Harley Davidson XLH1200 Base 1994
Harley Davidson XLH1200 Base 1995
Harley Davidson XLH1200 Base 1996
Harley Davidson XLH1200 Base 1997
Harley Davidson XLH1200 Base 1998
Harley Davidson XLH1200 Base 1999
Harley Davidson XLH1200 Base 2000
Harley Davidson XLH1200 Base 2001
Harley Davidson XLH1200 Base 2002
Harley Davidson XLH1200 Base 2003
Harley Davidson XLH883 Base 1988
Harley Davidson XLH883 Base 1989
Harley Davidson XLH883 Base 1990
Harley Davidson XLH883 Base 1991
Harley Davidson XLH883 Base 1992
Harley Davidson XLH883 Base 1993
Harley Davidson XLH883 Base 1994
Harley Davidson XLH883 Base 1995
Harley Davidson XLH883 Base 1996
Harley Davidson XLH883 Base 1997
Harley Davidson XLH883 Base 1998
Harley Davidson XLH883 Base 1999
Harley Davidson XLH883 Base 2000
Harley Davidson XLH883 Base 2001
Harley Davidson XLH883 Base 2002
Harley Davidson XLH883 Base 2003
Harley Davidson XLH883DLX Sportster 883 Deluxe Base 1988
Harley Davidson XLH883DLX Sportster 883 Deluxe Base 1989
Harley Davidson XLH883DLX Sportster 883 Deluxe Base 1990
Harley Davidson XLH883DLX Sportster 883 Deluxe Base 1991
Harley Davidson XLH883DLX Sportster 883 Deluxe Base 1992
Harley Davidson XLH883DLX Sportster 883 Deluxe Base 1993
Harley Davidson XLH883DLX Sportster 883 Deluxe Base 1994
Harley Davidson XLH883DLX Sportster 883 Deluxe Base 1995
Harley Davidson XLH883DLX Sportster 883 Deluxe Base 1996
Harley Davidson XLH883HUG Sportster 883 Hugger Base 1988
Harley Davidson XLH883HUG Sportster 883 Hugger Base 1989
Harley Davidson XLH883HUG Sportster 883 Hugger Base 1990
Harley Davidson XLH883HUG Sportster 883 Hugger Base 1991
Harley Davidson XLH883HUG Sportster 883 Hugger Base 1992
Harley Davidson XLH883HUG Sportster 883 Hugger Base 1993
Harley Davidson XLH883HUG Sportster 883 Hugger Base 1994
Harley Davidson XLH883HUG Sportster 883 Hugger Base 1995
Harley Davidson XLH883HUG Sportster 883 Hugger Base 1996
Harley Davidson XLH883HUG Sportster 883 Hugger Base 1997
Harley Davidson XLH883HUG Sportster 883 Hugger Base 1998
Harley Davidson XLH883HUG Sportster 883 Hugger Base 1999
Harley Davidson XLH883HUG Sportster 883 Hugger Base 2000
Harley Davidson XLH883HUG Sportster 883 Hugger Base 2001
Harley Davidson XLH883HUG Sportster 883 Hugger Base 2002
Harley Davidson XLH883HUG Sportster 883 Hugger Base 2003