1321-1
Worm Gear and Racks
Building instructions
The building instructions are on the official LEGO website. We do not host any instructions ourselves; the link below takes you to the official page.
View building instructions on LEGO.com (opens an external website)This set on Rebrickable (opens an external website)
Parts list – 1321-1 Worm Gear and Racks
2 lines, 22 pieces
| Image | Part | Name | Colour | Quantity | Note |
|---|---|---|---|---|---|
 | 3743 | Technic Gear Rack 1 x 4Technic Gears | Light Gray | 12× | |
 | 4716 | Technic Worm GearTechnic Gears | Black | 10× |