Harley-Davidson
Your motorcycle
Harley-Davidson Fat Boy
Choose a year to see the engine and exact parts
All listed trims share these maintenance parts.
Pick your model year
Oil, filters and parts change between generations, so choose your year above, or from the list below.
Harley-Davidson Fat Boy by year
20261868cc Milwaukee-Eight 114 V-twin (2018 base: 107)20W-50 →20251868cc Milwaukee-Eight 114 V-twin (2018 base: 107)20W-50 →20241868cc Milwaukee-Eight 114 V-twin (2018 base: 107)20W-50 →20231868cc Milwaukee-Eight 114 V-twin (2018 base: 107)20W-50 →20221868cc Milwaukee-Eight 114 V-twin (2018 base: 107)20W-50 →20211868cc Milwaukee-Eight 114 V-twin (2018 base: 107)20W-50 →20201868cc Milwaukee-Eight 114 V-twin (2018 base: 107)20W-50 →20191868cc Milwaukee-Eight 114 V-twin (2018 base: 107)20W-50 →20181868cc Milwaukee-Eight 114 V-twin (2018 base: 107)20W-50 →20171690cc Twin Cam 103 V-twin (103B)20W-50 →20161690cc Twin Cam 103 V-twin (103B)20W-50 →20151690cc Twin Cam 103 V-twin (103B)20W-50 →20141690cc Twin Cam 103 V-twin (103B)20W-50 →20131690cc Twin Cam 103 V-twin (103B)20W-50 →20121690cc Twin Cam 103 V-twin (103B)20W-50 →20111584cc Twin Cam 96 V-twin (96B)20W-50 →20101584cc Twin Cam 96 V-twin (96B)20W-50 →20091584cc Twin Cam 96 V-twin (96B)20W-50 →20081584cc Twin Cam 96 V-twin (96B)20W-50 →20071584cc Twin Cam 96 V-twin (96B)20W-50 →20061450cc Twin Cam 88 V-twin (counterbalanced 88B)20W-50 →20051450cc Twin Cam 88 V-twin (counterbalanced 88B)20W-50 →20041450cc Twin Cam 88 V-twin (counterbalanced 88B)20W-50 →20031450cc Twin Cam 88 V-twin (counterbalanced 88B)20W-50 →20021450cc Twin Cam 88 V-twin (counterbalanced 88B)20W-50 →20011450cc Twin Cam 88 V-twin (counterbalanced 88B)20W-50 →20001450cc Twin Cam 88 V-twin (counterbalanced 88B)20W-50 →