Harley-Davidson Fat Boy
The Fat Boy is Harley-Davidson's iconic muscle Softail, known for its solid disc wheels, wide stance, and heavyweight cruiser styling. This page covers confirmed-fit parts for the Fat Boy across the Twin Cam and Milwaukee-Eight Softail generations, including suspension, exhaust, intake, and tuning. Check the fitment notes on each product page before you buy. Current stock only.
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2007-2011 Harley-Davidson Softail Dynojet Power Commander 6 Fuel Tuner
DynojetThe Dynojet Power Commander 6 is a plug-and-play piggyback fuel tuner that lets you optimize the fuel and ignition timing curves on your Twin Cam S...
View full details2011-2020 Harley-Davidson Touring/Softail Dynojet Power Vision 4 Flash Tuner
DynojetThe Dynojet Power Vision 4 is a Bluetooth flash tuner that pairs with the Dynojet mobile app to write performance tunes directly to your bike's ECU...
View full details2021-2023 Harley-Davidson Touring/Softail Dynojet Power Vision 4 Reflash Cable
DynojetThe Dynojet Power Vision 4 Reflash Cable is a replacement diagnostic cable for the Power Vision 4 tuner on 2021 and newer Harley-Davidson Touring a...
View full detailsHarley-Davidson Dynojet Power Vision ECU Cable Delphi CAN
DynojetThe Dynojet Power Vision ECU Cable is a replacement diagnostic cable for connecting a Power Vision flash tuner to Harley-Davidson motorcycles equip...
View full detailsHarley-Davidson Dynojet Power Vision ECU Cable Delphi J1850
DynojetThe Dynojet Power Vision ECU Cable is a replacement diagnostic cable for connecting a Power Vision flash tuner to Harley-Davidson motorcycles equip...
View full details2012-2015 Harley-Davidson Softail Dynojet Power Commander 6 Fuel Tuner
DynojetThe Dynojet Power Commander 6 is a plug-and-play piggyback fuel tuner that lets you optimize the fuel and ignition timing curves on your Twin Cam S...
View full details2021-2023 Harley-Davidson Touring/Softail Dynojet Power Vision 4 Flash Tuner
DynojetThe Dynojet Power Vision 4 is a Bluetooth flash tuner that pairs with the Dynojet mobile app to write performance tunes directly to your bike's ECU...
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