What fork seal fits a Harley-Davidson FLSTFBS?

The Harley-Davidson FLSTFBS uses a 41 mm fork with 41x54x11 oil seals. We stock the manufacturer-verified seal and bushing kits for it; matching is done off the verified application list, not just the seal size.

What size is the Harley-Davidson FLSTFBS fork?

The Harley-Davidson FLSTFBS has a 41 mm fork with 41x54x11 oil seals.

Can I use any seal with the same dimensions?

No. Fork seals can share a size and still not seat correctly in a different fork design, so use the seal verified for your bike. The kits listed here are confirmed by the manufacturer to fit the Harley-Davidson FLSTFBS.

Harley-Davidson FLSTFBS Fork Seals

Q: What fork oil does the Harley-Davidson FLSTFBS use?

The Harley-Davidson FLSTFBS uses 15wt fork oil, about 340 ml per leg (factory fill H-D Type E fork oil (41.1 cSt@40C = SAE 15)).

The Harley-Davidson FLSTFBS runs a 41 mm front fork, oil seal 41x54x11.Every kit here is verified by the manufacturer to fit this exact bike. Fork seals can share a size and still not seat in a different fork, so we only list what is confirmed for your bike.

Fork tube41 mm
Oil seal size41x54x11

Kit	Years	Seal size	Replaces OEM
55-119	2016–2017	41x54x11	BMW 31422312838, BMW 31428358444
57-115	2016–2017	n/a	n/a

Verified fork kits we stock for your Harley-Davidson FLSTFBS

Fork Seal Kit

Fork Oil Seal Kit — BMW F650 (1997-1999) + 353

$18.24

Fork Seal Kit

Fork Dust Seal Kit — BMW F650 (1997-1999) + 325

$19.50

Fork oil for your Harley-Davidson FLSTFBS

A fork-oil change on the Harley-Davidson FLSTFBS uses 15wt fork oil, about 340 ml per leg. Factory fill: H-D Type E fork oil (41.1 cSt@40C = SAE 15).