
Cometic Gasket
$24.54


S&S Cycle
$715.95

Cometic Gasket
$13.22


TwinPower
$29.68


S&S Cycle
$349.95


TwinPower
$37.88

Kuryakyn
$174.07

Performance Machine
$133.95


TwinPower
$24.56


S&S Cycle
$20.16


TwinPower
$139.25

S&S Cycle
$165.67


S&S Cycle
$656.79


TwinPower
$9.20


Bikers Choice
$29.68


S&S Cycle
$540.95


S&S Cycle
$15.10

Cometic Gasket
$59.50

NAMZ
$30.96


Bikers Choice
$440.31
Yes, all parts displayed on this page are verified to fit the 1999 Harley-Davidson FXSTS Springer Softail using VCDB fitment data. Our fitment information comes directly from manufacturers and is cross-referenced with industry-standard vehicle databases.
We offer a wide selection of engine & drivetrain parts specifically designed for the 1999 Harley-Davidson FXSTS Springer Softail. All parts shown are verified for fitment and include detailed product information to help you choose the right option.
We carry parts from trusted brands including S&S Cycle, TwinPower, Cometic Gasket, Bikers Choice, and Kuryakyn, plus many more. Filter by brand to find your preferred manufacturer.
Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.
Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.