Part Description
Fits 39mm forks on 1987 thru 1994 FXR, 1988 to present Sportster and 1991 thru 2005 Dyna Narrow Glide models, Oil seal backup washer, 2-pack (OEM 45377-87)
Text excerpt from the catalog:
Copper drain plug washers, fork tube cap seals, retaining rings, slider tube O-rings, oil seal backup spacer rings, dust seals and all other small parts you may need to rebuild a front fork.