LiftMaster 75-50293 Standard Assembly Arm (Q104)

Ensure reliable and safe operation of your gate system with the LiftMaster 75-50293 Gate Operator Standard Assembly Arm. This heavy-duty articulated arm is engineered for both residential and commercial applications and features a weather-resistant build with reinforced connection points.

The arm includes a built-in safety flange to prevent over-extension during operation and multiple set screws at the articulation pivot for a secure, customizable fit. Its robust construction is ideal for installations in demanding environments and is designed to deliver long-lasting performance.

This model is compatible with LiftMaster RSW12U residential gate openers and CSW and CSW200 series commercial swing gate operators. It’s also known by alternate part numbers Q038, Q040, Q104, and K09-50104 for cross-reference flexibility.

Product Highlights:

• Model Number: 75-50293

• Alternate Part Numbers: Q038, Q040, Q104, K09-50104

• Compatibility:

  • LiftMaster RSW12U residential gate openers

  • LiftMaster CSW and CSW200 series commercial swing gate operators

• Construction:

  • Articulated arm design

  • Safety flange to prevent over-extension

  • Weather-resistant materials

• Installation:

  • Multiple set screws for secure mounting

  • Ideal for vertical or horizontal mounting orientations

Dimensions:

• Length: 36 inches

• Width: 2 inches

• Depth: 3 inches

• Fully Extended Length: 56 inches