Anyone needing one of these to complete a restoration or just replace one that bounced off the bike. If you are wondering if you need one then look at the tool tray to see if the holder is empty or not. These are really hard to come by and rare new from Honda.
Ebay 280801623103
This is the fiche information, both part numbers are supposed to be the same part. The CB550 fiche doesn't list it but the tool tray has the same mount for the fuse holder. The CB550 fuse box carries an extra fuse which probably explains the missing reference. The CB500 has the older in-line fuse case requiring a separate holder for extra fuses.
38205-323-000 CASE, FUSE
CB500K0
CB500K1
CB500K2
XL175
XL175K1
XL175K2
XL250K0
38206-431-000 CASE, FUSE
GL1000 A (78)
GL1000 A (79)