K&N Air Filter HD-1390 Harley Evo Big Twin '90-99 Electra Dyna Fat Boy Softail

Product Details and Features:

The K&N HD-1390 air filter is a performance upgrade from stock filters, designed to provide increased airflow and engine protection. 

Filter Material: Multiple layers of pleated cotton gauze media, which are pre-oiled and ready for installation.

Performance: Engineered to increase horsepower and torque. Reviewers often note an improvement in throttle response after installation.

Durability & Maintenance: It is a washable and reusable filter, designed for long service intervals and backed by a 10-year/million-mile limited warranty. Users praise its cost-effectiveness over time compared to disposable filters.

Fitment: It is an application-specific replacement designed to fit directly into the OEM air box with a precise sealing bead.

Installation: Installation is generally easy and does not normally require fuel management modifications. 

The K&N HD-1390 air filter is designed as a direct replacement for numerous Harley-Davidson motorcycles with Evolution Big Twin engines from 1990-1999. 

Specific Fitments:

The HD-1390 air filter fits a wide range of Harley-Davidson models. You can find your specific motorcycle in the lists below: 

Softail Models

The HD-1390 fits various Softail models from 1990-1999, including the Bad Boy FXSTSB (1995-1997), Fat Boy FLSTF (1990-1999), and several Heritage Softail variations such as the Classic FLSTC (1990-1999). Other compatible Softail models include the Night Train FXSTB (1999), Softail Standard FXST (1990, 1999), Softail Custom FXSTC (1990-1999), and Springer Softail FXSTS (1990-1999). 

Touring Models

Numerous Touring models from 1990-1998 are compatible with the HD-1390 air filter. These include the Electra Glide Sport FLHS (1990-1993), Electra Glide Standard FLHT (1995-1998), Electra Glide Classic FLHTC (1990-1998), and Electra Glide Ultra Classic FLHTCU (1990-1997). Road Glide FLTR (1998), Road King FLHR (1995-1998), Tour Glide Classic FLTC (1990-1991, 1993), and Tour Glide Ultra Classic FLTCU (1990-1995) are also listed. 

Dyna & FXR Models

The HD-1390 fits various Dyna and FXR models from 1990-1998. Compatible Dyna models include the Convertible FXDS-Conv (1994-1998), Low Rider FXDL (1993-1998), Super Glide FXD (1995-1998), and Wide Glide FXDWG (1993-1998). Older models such as the Dyna Glide Daytona FXDB-D (1992) and Dyna Glide Sturgis FXDB-S (1991) are also compatible. FXR models listed include the Low Rider Custom FXLR (1990-1994), Low Rider Sport FXRS-SP (1990-1993), Sport Glide FXRT (1990-1992), and Super Glide FXR (1990-1993). 

Selling as pictured.

More than welcome to pick up at shop in butler pa & save shipping.

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