K&N Engineering KN-1388 High-Flow Replacement Air Filter for 1988-1990 Harley-Davidson Sportster

The K&N High-Flow Air Filter for Motorcycles is engineered to increase airflow for improved horsepower, throttle response, and acceleration while providing increased engine protection. Built with premium oiled cotton gauze, this washable and reusable air filter is designed for long-lasting performance, a precision OEM-style fit, and durable construction to keep your motorcycle performing ride after ride. The K&N High-Flow Air Filter for Motorcycles is engineered to increase airflow for improved horsepower, throttle response, and acceleration while providing increased engine protection. Associated products: 99-5000 Filter Care Service Kit Aerosol

• PRECISION OEM-STYLE FIT: Made with application specific seamless sealing beads and custom seals for easy installation (Where Applicable).
• 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

The K&N Engineering KN-1388 High-Flow Replacement Air Filter is designed for select 1988-1990 Harley-Davidson Sportster motorcycles. It helps increase airflow to support improved horsepower, throttle response, and acceleration while providing dependable engine protection. The washable, reusable design offers a durable alternative to disposable replacement filters and is pre-oiled for convenient installation.

Multiple layers of woven cotton gauze media provide effective filtration, while the pleated construction increases the available filtration area to support extended service intervals. An application-specific base seal and sealing bead help provide a precision OEM-style fit for straightforward installation where applicable. Built in the USA, the KN-1388 is backed by K&N's No-Hassle Lifetime Limited Warranty. For maintenance, the K&N 99-5000 Filter Care Service Kit Aerosol is an associated product.

• Brand: K&N Engineering
• Part Number: KN-1388
• Filter Type: High-flow replacement motorcycle air filter
• Filter Media: Multiple layers of oiled cotton gauze
• Construction: Pleated, washable, and reusable design
• Fitment: Select 1988-1990 Harley-Davidson Sportster models
• Warranty: No-Hassle Lifetime Limited Warranty
• Origin: Made in the USA

What's Included: One K&N Engineering KN-1388 high-flow replacement air filter. The filter arrives pre-oiled and ready for installation. Always verify motorcycle application and follow the manufacturer's installation and service instructions before use. This product may require a California Air Resources Board compliance acknowledgment.

Features:

• High-flow performance: Designed to increase airflow for improved horsepower, throttle response, and acceleration.
• Washable and reusable: Can be cleaned and serviced for long-lasting use instead of repeatedly replacing disposable filters.
• Advanced filtration media: Multiple layers of woven cotton gauze help provide effective engine protection.
• Precision OEM-style fit: Application-specific seals and sealing beads support easy installation and a secure fit where applicable.

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

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: powersports
Epa: N/A
Regular Stock: t
Units Per Sku: 1