#2983
Motor Pulley, 9V Micromotor with axle hole
Light Gray
2× needed
#4143
Technic Gear 14 Tooth Bevel
Light Gray
4× needed
![LEGO part Technic Gear 16 Tooth with Round Holes [Old Style] 4019](https://cdn.rebrickable.com/media/parts/ldraw/7/4019.png)
#4019
Technic Gear 16 Tooth with Round Holes [Old Style]
Light Gray
2× needed
![LEGO part Technic Gear 24 Tooth [New Style with Single Axle Hole] 3648b](https://cdn.rebrickable.com/media/parts/elements/364802.jpg)
#3648b
Technic Gear 24 Tooth [New Style with Single Axle Hole]
Light Gray
2× needed
![LEGO part Technic Gear 24 Tooth Crown with Reinforcements [New Style] 3650c](https://cdn.rebrickable.com/media/parts/elements/365002.jpg)
#3650c
Technic Gear 24 Tooth Crown with Reinforcements [New Style]
Light Gray
2× needed
#3647
Technic Gear 8 Tooth
Light Gray
3× needed
#3743
Technic Gear Rack 1 x 4
Light Gray
2× needed
![LEGO part Technic Wedge Belt Wheel [aka Pulley] 4185](https://cdn.rebrickable.com/media/parts/elements/4100502.jpg)
#4185
Technic Wedge Belt Wheel [aka Pulley]
Light Gray
2× needed
#4716
Technic Worm Gear
Black
2× needed
