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.
Filters
Harley-Davidson Softail/Dyna Twin Power YTX-20HL Shocker Gel Battery (Replaces H-D 65989-97A) 310 CCA
TwinPowerTwin Power Shocker Gel batteries use nano-gel technology in a heavy-duty OEM-style case for long, reliable starting performance. The gel electrolyt...
View full details1984-2017 Harley-Davidson Softail/Dyna/Touring Twin Power 11.5in Scalloped Floating Rear Brake Rotor Black Mesh
TwinPowerThis Twin Power rear brake rotor is a direct OE-style replacement with a floating stainless rotor and a lightweight carrier. The mesh surface patte...
View full details1984-2017 Harley-Davidson Softail/Sportster/Dyna/Touring Twin Power 11.5in Scalloped Floating Front Brake Rotor Black Mesh
TwinPowerThis Twin Power front brake rotor is a direct OE-style replacement with a floating stainless rotor and a lightweight carrier. The mesh surface patt...
View full details1984-2017 Harley-Davidson Softail/Dyna/Touring Twin Power 11.5in Solid Rear Brake Rotor Stainless Drilled
TwinPowerThis Twin Power rear brake rotor is a one-piece solid stainless OE-style replacement. The drilled surface pattern helps shed heat and clear water f...
View full details1984-2017 Harley-Davidson Softail/Dyna/Touring Twin Power 11.5in Solid Rear Brake Rotor Stainless Mesh
TwinPowerThis Twin Power rear brake rotor is a one-piece solid stainless OE-style replacement. The mesh surface pattern helps shed heat and clear water for ...
View full details1984-2017 Harley-Davidson Softail/Dyna/Touring Twin Power 11.5in Floating Rear Brake Rotor Silver Drilled
TwinPowerThis Twin Power rear brake rotor is a direct OE-style replacement with a floating stainless rotor and a lightweight carrier. The drilled surface pa...
View full details1984-2017 Harley-Davidson Softail/Dyna/Touring Twin Power 11.5in Floating Rear Brake Rotor Silver Mesh
TwinPowerThis Twin Power rear brake rotor is a direct OE-style replacement with a floating stainless rotor and a lightweight carrier. The mesh surface patte...
View full details1984-2017 Harley-Davidson Softail/Dyna/Touring Twin Power 11.5in Floating Rear Brake Rotor Black Drilled
TwinPowerThis Twin Power rear brake rotor is a direct OE-style replacement with a floating stainless rotor and a lightweight carrier. The drilled surface pa...
View full details1984-2017 Harley-Davidson Softail/Dyna/Touring Twin Power 11.5in Floating Rear Brake Rotor Black Mesh
TwinPowerThis Twin Power rear brake rotor is a direct OE-style replacement with a floating stainless rotor and a lightweight carrier. The mesh surface patte...
View full details1984-2017 Harley-Davidson Softail/Sportster/Dyna/Touring Twin Power 11.5in Solid Front Brake Rotor Stainless Drilled
TwinPowerThis Twin Power front brake rotor is a one-piece solid stainless OE-style replacement. The drilled surface pattern helps shed heat and clear water ...
View full details1984-2017 Harley-Davidson Softail/Sportster/Dyna/Touring Twin Power 11.5in Solid Front Brake Rotor Stainless Mesh
TwinPowerThis Twin Power front brake rotor is a one-piece solid stainless OE-style replacement. The mesh surface pattern helps shed heat and clear water for...
View full details1984-2017 Harley-Davidson Softail/Sportster/Dyna/Touring Twin Power 11.5in Floating Front Brake Rotor Silver Drilled
TwinPowerThis Twin Power front brake rotor is a direct OE-style replacement with a floating stainless rotor and a lightweight carrier. The drilled surface p...
View full details1984-2017 Harley-Davidson Softail/Sportster/Dyna/Touring Twin Power 11.5in Floating Front Brake Rotor Silver Mesh
TwinPowerThis Twin Power front brake rotor is a direct OE-style replacement with a floating stainless rotor and a lightweight carrier. The mesh surface patt...
View full details1984-2017 Harley-Davidson Softail/Sportster/Dyna/Touring Twin Power 11.5in Floating Front Brake Rotor Black Drilled
TwinPowerThis Twin Power front brake rotor is a direct OE-style replacement with a floating stainless rotor and a lightweight carrier. The drilled surface p...
View full details1984-2017 Harley-Davidson Softail/Sportster/Dyna/Touring Twin Power 11.5in Floating Front Brake Rotor Black Mesh
TwinPowerThis Twin Power front brake rotor is a direct OE-style replacement with a floating stainless rotor and a lightweight carrier. The mesh surface patt...
View full detailsHarley-Davidson Softail/Dyna Twin Power YTX-20HL Shocker Battery (Replaces H-D 65989-97A) 310 CCA
TwinPowerTwin Power Shocker batteries are endurance and laboratory tested for long, reliable performance in a heavy-duty OEM-style case. Absorbed Glass Mat ...
View full detailsHarley-Davidson Softail/Dyna Twin Power YTX-20HL High Performance Battery (Replaces H-D 65989-97A) 310 CCA
TwinPowerTwin Power High Performance batteries are made in the USA and supplied factory activated, filled, sealed, and charged. Absorbed Glass Mat construct...
View full detailsHarley-Davidson Softail/Dyna Twin Power GYZ-20HL Premium MAX Battery (Replaces H-D 65989-97A) 320 CCA
TwinPowerTwin Power Premium MAX batteries are made in the USA with Absorbed Glass Mat construction in a heavy-duty OEM-style case. Factory activated and sea...
View full details