These used Singer Heavy Duty parts fit 44S, 4411, 4423, 5511, 5523 some parts fit all Heavy Duty models. If you have any questions please ask we are here to help.

#1 Hook Q6A0704000
#2 Needle Plate 416472401
#3 Motor Belt 416466501
#4 Motor Complete With Light & Switch Box
#5 Handwheel 416466601
#6 Stitch Length Dial 416470101
#7 Bobbin Cover 416428301
#8 Presser Bar Lifting Lever 416730101
#9 Presser Bar Asjusting Screw 416730301
#10 Trimming Dial 416547201
#11 4411 Pattern Selector Dial 416555401
#12 4423 Pattern Selector Dial 416470401
#13 Complete Tension All Models
#14 Thread Take up Lever Complte 416466701
#15 Feed Dog H1A0363000
#16 Bobbin Case Stopper 416144001
#17 Needle Clamp G10245000
#18 Reverse Lever & Link 416467401
#19 Presser Bar Spring V70163003
#20 Needle Bar 416466801
#21 Presser Bar V70153002
#22 Top Cover Complete 416469101,
23 Accessory Box 416472601