LiftMaster LA500DC Primary 24V DC Swing Gate Actuator Arm
LiftMaster LA500DC Primary 24V DC Swing Gate Actuator Arm
The LiftMaster LA500DC is a primary 24V DC linear actuator arm for compatible LiftMaster LA500 vehicular swing-gate systems. It is the arm reference to check when replacing the primary actuator while retaining a serviceable, compatible control system. LiftMaster identifies LA500DCS separately for the secondary position in supported dual-gate installations. Select this primary arm by the complete system documentation and existing labels, and confirm the cable, bracket and control requirements before treating an arm replacement as a complete installation package.
Compatibility — Models, Versions and Exclusions
| Model or selection point | Compatibility requirement |
|---|---|
| LA500DC | Primary actuator reference; confirm the complete LA500 control-system generation. |
| LA500DCS | Secondary actuator for supported dual-gate systems; not the same ordering position. |
| Complete LA500 system package | Includes a different scope of equipment than an arm-only service purchase. |
| LA400 / other gate systems | Do not substitute solely because both use 24V DC. |
| Previously modified systems | Identify retained controls and replacement arms individually before selecting parts. |
Replacement Arm Selection for a Complete Gate System
A matching actuator model is essential, but it does not replace an inspection of the gate itself. Hinges, brackets, mounting posts and the gate’s movement affect the replacement decision. Supply photographs showing the full arm installation and readable control-box labels, particularly if earlier repairs have mixed components from different revisions.
A primary-arm purchase should not be confused with upgrading the whole entrance. Vehicle access controls, charging equipment, backup batteries and monitored safety devices belong to the complete system. Confirm whether those components are being retained or replaced, and have the installer verify the resulting combination. Current supplier cable and bracket inclusion must be confirmed before relying on a complete installation inventory.
Product Identification
| Specification | Details |
|---|---|
| Model | LA500DC |
| Component | Primary actuator arm |
| Operating platform | 24V DC |
| Gate movement | Swing |
| Related secondary arm | LA500DCS |
| Selection basis | Exact LA500 system and replacement-parts documentation |
Primary Arm Versus Secondary Arm
LiftMaster identifies LA500DC as the primary actuator and LA500DCS as the secondary actuator for dual-gate applications. Confirm which side of the system is being serviced. A two-leaf gate does not automatically use two identical primary-arm order numbers.
What to Confirm Before Purchase
- The complete actuator and control-box model numbers.
- Whether the installation needs a primary arm, secondary arm or complete system package.
- The existing bracket arrangement and actuator connections.
- Gate length, weight, mechanical condition and the limits stated in the applicable system manual.
Package and System Features
This SKU identifies the actuator arm. A control box, batteries, safety devices and access controls are separate system components unless an offer expressly includes them. Connected features and operating capacity must be evaluated for the complete installed system.
Frequently Asked Questions
Is LA500DC a complete ready-to-install gate system?
It identifies the primary actuator arm. A working installation also requires the correct controls, power system, mounting arrangement and safety equipment.
Can I substitute it for an LA400DC arm?
Do not assume cross-family compatibility. Confirm the exact approved arm and control-system combination in the manufacturer documentation.
Safety Warnings — Read Before Installation or Service
- WARNING: Swing-gate motion creates crushing and entrapment hazards that can cause serious injury or death. Have a trained gate-systems technician install or replace this actuator.
- Keep pedestrians and children away from the travel area. Provide a separate pedestrian route instead of directing people through the powered vehicle gate.
- Isolate AC, battery and solar power where fitted. Support and secure the leaf before disconnecting an actuator or bracket.
- Do not operate with failed or bypassed protection devices. Verify the protected zones, limits and obstruction response before returning the system to service.
Related Products and Important Differences
- LiftMaster linear-actuator main control board — a related electronic service component. Confirm its exact part number and the installed control revision; it is not included with this arm.
- LMWEKITU monitored wireless edge kit — a separate communication kit for compatible safety edges when approved for the gate controls.
- LMRRUL monitored photo eye — a non-contact safety component to evaluate against the exact system manual and installation layout.
More Questions Before Ordering
Does the 24V rating make this interchangeable with LA400DC?
No. Voltage alone does not establish mechanical, electrical or control-system compatibility. Use the specified actuator for the installation.
Should I order two LA500DC arms for a double gate?
Confirm the system design first. LiftMaster distinguishes the primary LA500DC from the secondary LA500DCS; do not order two primary arms simply because the gate has two leaves.
Need Help Confirming the Right Part?
Contact Garage-DoorParts.com before ordering. Send the full operator model, readable part labels and photographs of the installed assembly. Include dimensions or the control-box model where relevant. We can help compare the listing with the information you provide; final installation suitability should be confirmed by the servicing technician.
Details
Need Help With Compatibility?
Not sure if this is the correct part for your garage door, operator, gate system, or application? Contact Us before ordering — we’re happy to help.
Garage-DoorParts.com carries a large selection of residential and commercial parts, and many components can look similar while having important differences in dimensions, model numbers, voltage, mounting, or compatibility.
For the best assistance, please provide as much information as possible, including the manufacturer, model number, part number, door or operator type, dimensions, and clear photos of the existing part or equipment.
Our goal is to help you identify the correct product before you order and reduce the possibility of ordering an incompatible part.
Contact Us with your product questions and compatibility information, and we’ll do our best to point you in the right direction.
Shipping & Returns
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We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
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