Part #3691
Part #3691 is often known as Technic Holder Block 4 x 4 x 3. We know this part is available in LDraw, Bricklink and Rebrickable. You can buy it on Amazon or Bricklink.
Category
How to find this part
Name
Technic Holder Block 4 x 4 x 3
Category
Unknown
Author
Ross Crawford [rosco]
Status
official
Available variations
Name
Electric, Motor 4.5V Housing 4 x 4 x 3
Category
Electric, Motor
Weight
9 gram
Size
? x ? x ?
Available variations
Name
Electric Motor 4.5V Housing 4 x 4 x 3
Category
Power Functions, Mindstorms and Electric