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Harley-Davidson Softail, Milwaukee-Eight (2018+): parts and specs
Filters, battery, spark plug and tire specs for the Harley-Davidson Softail, Milwaukee-Eight, each checked against the maker's own page and linked to it.
| Oil filter | HiFlo HF171 (HF171B black / HF171C chrome)CheckedOEM 62700296 (black) - H-D parts catalog, all modelsSourceShop on eBay |
|---|---|
| Air filter | K&N HD-1718 (verified on FLSB Sport Glide page, 2018-2023)CheckedOEM 29400248 (107 models: FLDE, FLHC, FLSL, FXLR, FLFB, FLSB, FXBB, FXBR, FXFB, FXST); 29400267 (114 models: FLFBS, FLHCS, FXBBS, FXBRS, FXFBS, FXLRS)SourceShop on eBay |
| Battery | Yuasa YTX20HL-BS (also YTX20L-BS, GYZ20HL)CheckedSourceShop on eBay |
| Spark plug | OEM 31600012 (M10, 4 per bike)CheckedGap 0.8-0.9 mmSource |
| Tire sizes | Varies by model, see belowCheckedF 2020: FXBB 100/90B19; FXLR/S 110/90B19; FLHC/S, FLSL 130/90B16; FLSB 130/70B18; FXFB/S 150/80B16; FLFB/S 160/60R18; FXBRS 130/60B21; FLDE MT90B16 · R 2020: FXBB, FLHC/S, FLSL 150/80B16; FLSB, FXFB/S, FXLR/S 180/70B16; FLFB/S, FXBRS 240/40R18; FLDE MU85B16Source |
| Tire pressure | Varies by model, see belowCheckedF 36 (FXLR/S: 32) · R 40 (FLFB/S and FXBRS: 42) psi · ColdSource |
Sources cover: OEM parts from 2019 + 2021 parts catalogs; HiFlo/K&N 2018-2023/24; tires/pressures 2020 owner's manual. Parts can differ by year and region, so check the number on your old part.
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