
TwinPower
$69.62

TwinPower
$37.88
Kuryakyn
$174.07
Performance Machine
$133.95

S&S Cycle
$20.16

S&S Cycle
$656.79

TwinPower
$9.20

S&S Cycle
$540.95

S&S Cycle
$15.10

TwinPower
$11.25

Bikers Choice
$126.96

Bikers Choice
$440.31

TwinPower
$204.79

TwinPower
$35.83

S&S Cycle
$199.95

S&S Cycle
$1103.44

S&S Cycle
$214.95

TwinPower
$614.39

Kuryakyn
$138.23

TwinPower
$194.55
Yes, all parts displayed on this page are verified to fit the 2006 Harley-Davidson FXSTI Softail Standard 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 2006 Harley-Davidson FXSTI Softail Standard. 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, Kuryakyn, and Bikers Choice, 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.