LiftMaster K75-38330 Rear-Housing Assembly — CAPXL / CAPXLV

The LiftMaster K75-38330 is the rear-housing assembly identified in CAPXL/CAPXLV connected-access-portal repair information. It restores the specified enclosure component and must match the portal generation and mounting arrangement. It is separate from the faceplate, display, reader plate, lock kit and internal boards. A rear-housing order is not a complete entry system and does not by itself repair electronics damaged by impact or moisture. Select the replacement by the complete part number and the installed equipment configuration. A similar photograph or a shared LiftMaster brand name does not establish interchangeability. Confirm the applicable service drawing before ordering so the repair addresses the correct component and its related mounting, connection and operating requirements.

Compatibility — Models, Versions and Exclusions

Identify the Assembly and Plan the Repair

Inspect the mounting support and all adjoining panels after an impact. A replacement rear housing should not be fitted to a distorted pedestal or used to hide damaged boards, cables or connectors. Determine whether the repair requires only the enclosure component or additional electronics and sealing pieces.

Preserve the intended cable entry, grounding, sealing and service clearances during the transfer of equipment. A housing change does not upgrade networking, reader compatibility or connected-service capability. Confirm the current assembly inventory and use the portal-specific procedure rather than assuming a photograph of a complete unit represents the carton contents.

An electrical symptom does not identify the failed component by itself. Have qualified service personnel inspect the supply, wiring, connections and equipment condition before replacing parts. Record existing labels and terminal references with power safely isolated. A replacement should restore the documented circuit arrangement; it should not be used to change operating voltage, defeat a protective function or compensate for a mechanical load that the equipment cannot safely move.

Compare the delivered item with the approved service reference before installation. The installer must obtain the equipment-specific wiring, mounting and commissioning instructions rather than infer them from the appearance of the part. Keep conductors clear of moving components and reinstall the intended covers. After the repair, check the original complaint and the equipment’s required operating and safety functions; a successful power-up alone is not a complete service test.

Specifications and Product Identification

Before Ordering

• Confirm CAPXL/CAPXLV and exact housing reference.
• Inspect pedestal/wall support and impact damage.
• Identify separate panel, seal and electronics requirements.
• Confirm current mounting and transfer instructions.

Package Contents and Separate Requirements

This offer identifies the rear-housing assembly. Faceplate, touchscreen, camera, lock, reader, power supply and internal control boards are separate unless expressly bundled. Confirm gaskets, mounting pieces and other enclosure hardware in the current supplier package. The repair drawing does not automatically bundle all installed electronics with the housing.

Safety Warnings — Read Before Installation or Service

• WARNING: Electrical service can expose hazardous voltage and moving equipment. Use qualified service personnel and electrical personnel where required.
• Disconnect every applicable mains, battery and auxiliary supply before work. Follow the equipment instructions for stored energy and safe isolation.
• Support the housing and protect transferred wiring and boards. Preserve grounding, cable entries and required emergency egress while the portal is serviced.
• Restore covers and wiring protection, then complete the model-specific functional and safety checks before returning the installation to normal use.

Related Products and Important Differences

• CPS-U monitored photo eyes — separate protection devices for approved commercial-door controls; match the operator and environment.
• TDC12X1BMC MAXUM trolley operator — a complete-operator comparison, not evidence that this legacy service part fits MAXUM.

Frequently Asked Questions

Is it the complete portal?

No. It identifies the rear enclosure assembly.

Is the display included?

No display is promised.

Will it fit CAPXLV2?

No cross-generation fit is established.

Does it repair moisture-damaged boards?

No. Electronics and the source of moisture require separate assessment.

Need Help Confirming the Right Product?

Contact Garage-DoorParts.com before ordering. Send the full equipment model, readable part labels and photographs of the installed assembly. Include the dimensions, electrical configuration or accessory details relevant to your project so the listing can be checked against the actual installation.