Technic, Brick 1 x 4 with Holes - 3701

Connect classic LEGO® brick building with Technic mechanisms using the LEGO® Technic Brick 1 x 4 with 3 Holes (3701). This versatile building piece combines four top studs with three side-facing Technic holes, making it useful for structural connections, custom models and mechanical assemblies.

LEGO® Technic Brick 3701 – Features

• Part number: 3701
• Dimensions: 1 x 4 studs
• Design: Four hollow top studs and three Technic holes along the side
• Connections: Compatible with standard LEGO® stud connections and suitable Technic pins
• Building uses: Reinforced structures, vehicle frames, custom Technic assemblies and MOCs

Build with Studs and Technic Connections

The three evenly spaced holes allow Technic pins to connect this brick to compatible elements, while the top studs integrate it into traditional LEGO® constructions. This makes part 3701 particularly useful when adding Technic components to studded models or rebuilding an existing creation.

Whether you're replacing a missing brick or gathering parts for your next custom build, explore our LEGO® Technic bricks collection for more compatible building elements.