Genuine HD suspension kits & shocks and aftermarket alternatives that fit the Fat Boy 114 — all years. Select your year for exact fitment and pricing.
Genuine Harley-Davidson
Screamin' Eagle/Öhlins Remote Reservoir Rear Suspension Install Kit
54000321
Genuine Harley-Davidson
Screamin' Eagle Softail Suspension Tuned by Öhlins Front Kit
45400355
Genuine Harley-Davidson
Screamin' Eagle Softail Suspension Tuned by Öhlins Front Kit
45400356
Genuine Harley-Davidson
Screamin' Eagle/Öhlins Remote Reservoir Rear Suspension
54000325Aftermarket suspension kits & shocks the supplier lists against the Fat Boy 114. Genuine Harley-Davidson is listed above, not here.
Progressive Suspension
PROGRESSIVE SUSPENSION DROP-IN FRONT LOWERING KITS
Progressive Suspension
PROGRESSIVE SUSPENSION FRONT FORK LOWERING KITS
Legend Air Suspension
Legend, Air-A air suspension kit. Black
Progressive Suspension
Progressive Suspension, fork lowering spring kit. 49mm
Front fork cartridges, a rear shock and reservoir mounting hardware perform different jobs. Start with the end of the motorcycle you want to change, then match the year, fork design and existing adjustment equipment.
This all-years selection brings earlier and later Softail applications together. The shock in the film is 54000384 for the listed 2025-on applications; it does not make that part suitable for an earlier bike.
The current catalogue separates 54000384 for 2025-on Softails from 54000325 for 2018–2024 Softails. Both descriptions specify tool-free preload, compression and rebound adjustment, a 46 mm piston and serviceability through Öhlins. Preload accounts for rider, passenger and luggage weight; damping adjustments then tune the response. Choose by the exact application before comparing the shared features.
Installation kit 54000321 is listed for 2018–2024 Softails without factory external remote preload adjustment. The 54000325 requirements call for it when the bike lacks the preload-adjuster side cover. It supplies the installation solution for that condition; it is not a second shock or an automatic requirement for every year.
Kit 45400355 is for the specified inverted forks; 45400356 is for conventional forks. Both include left and right cartridges, springs and oil, with compression adjustment on the left and rebound on the right. Installation tools are separate, and Harley-Davidson recommends dealer installation because specialist tools are required. A cartridge kit changes the internals of the existing fork; it is not a complete replacement fork assembly.