Overview
The Ergotron 98-743-629 LX Pro Spare Parts Kit is a white replacement component kit designed for compatible Ergotron LX Pro desk arms and extensions. It provides replacement parts for maintaining mounting hardware, restoring cable management covers, and replacing missing or worn components.
This accessory is intended for servicing compatible monitor-mounting assemblies. It is a spare parts kit rather than a complete monitor arm or display mounting system.
Replacement Components and Maintenance
The kit contains a selection of mounting-system components, including joint flanges, cable covers, end caps, a rotation stop, screw caps, set screws, joint tensioners, and a hex wrench.
These components support maintenance of compatible LX Pro desk-arm assemblies. The specific replacement part required depends on the component that is missing, worn, or needs attention.
Key Features
- Replacement parts: Supplies selected components for maintaining compatible LX Pro desk arms and extensions.
- Cable management: Includes covers for the arm and extension to replace missing or worn cable covers.
- Mounting hardware: Includes flanges, set screws, screw caps, and joint tensioners.
- Rotation control: Includes a rotation stop for supported mounting configurations.
- White finish: Matches compatible white LX Pro mounting equipment.
Compatibility
Ergotron identifies this kit for LX Pro desk arms and extensions. Published compatibility listings include the following Ergotron models:
- 45-682-290 — LX Pro Arm Single Desk
- 45-684-290 — LX Pro arm configuration
- 45-686-290 — LX Pro Dual Side-by-Side
- 45-690-290 — LX Pro arm configuration
- 45-695-290 — LX Pro arm configuration
- 45-708-290 — LX Pro arm configuration
- 45-709-290 — LX Pro arm configuration
- 45-710-290 — LX Pro Dual Display Stacking configuration
- 45-712-290 — LX Pro Arm C-Clamp Short-Pole Single Mount
- 45-714-290 — LX Pro arm configuration
Confirm compatibility with the exact arm model and the component requiring replacement before ordering. Do not assume that every part in this kit is used by every compatible mounting configuration.
Applications
- Replacing missing mounting hardware on compatible LX Pro desk arms.
- Restoring cable management covers on monitor arms and extensions.
- Maintaining compatible display-mounting assemblies in office and workstation environments.
- Replacing selected joint covers, caps, and adjustment-related components during equipment maintenance.
DC Supplies Product Note
Identify the missing component before purchasing. This kit contains a selection of replacement parts, not a complete replacement arm or a guarantee that every individual LX Pro component is included. Comparing the required part with the documented kit contents can help prevent ordering an unsuitable maintenance kit.
Specifications
| Brand | Ergotron |
|---|---|
| Part Number / MPN | 98-743-629 |
| Product Type | Monitor-mounting spare parts kit |
| Product Series | LX Pro |
| Product Name | LX Pro Spare Parts Kit for Desk Arms |
| Color | White |
| Intended Equipment | Compatible LX Pro desk arms and extensions |
| Material | High-grade ABS plastic or steel, depending on component |
| Arm Cable Cover | Included |
| Extension Cable Cover | Included |
| Flanges | One small flange and two large flanges |
| End Caps | Two |
| Pole Cap | Included |
| Rotation Stop | Included |
| Screw Caps | Four |
| Set Screws | Four |
| Joint Tensioners | Three |
| Tool | Hex wrench |
| UPC | 0698833092523 |
Frequently Asked Questions
Is the Ergotron 98-743-629 a complete monitor arm?
No. It is a replacement parts kit for compatible LX Pro desk arms and extensions. The complete monitor arm is not the product described by this part number.
What replacement components are included?
The documented contents include cable covers, flanges, end caps, a pole cap, a rotation stop, screw caps, set screws, joint tensioners, and a hex wrench.
Is this kit compatible with every Ergotron LX Pro arm?
Compatibility depends on the specific mounting configuration. Check the exact model number against the manufacturer's compatibility information before purchasing.
Can this kit be used to restore cable management covers?
Yes. The documented contents include one cable cover for the arm and one for the extension. Confirm that the covers match the configuration being serviced.
Does the kit include a replacement monitor mount or desk clamp?
The documented contents do not identify a complete monitor arm or a replacement desk clamp. If either component needs replacement, verify the appropriate Ergotron part number separately.










