Juki DNU-1541 DNU-1541S DNU-241 Bobbin Case #B1837-241-H00 Original Juki Part Bobbin Case for Juki DNU-1541, DNU-241 Industrial Walking Foot Machine. Juki bobbin case # B1837-241-H00 For For Juki DNU-1541, DNU-1541H, DNU-1541S, DNU-241H, DNU-261HClass machines using large bobbin (#82552) only. Will not fit small bobbin machines. Genuine Juki part.