LiftMaster K77-37853 Operator Cover Kit — CSW24U
LiftMaster K77-37853 Operator Cover Kit — CSW24U
The LiftMaster K77-37853 is the replacement operator-cover reference for the CSW24U swing-gate operator. The source offer specifies both cover sections together with labels, lock and keys, providing a defined enclosure-repair package rather than a complete operator. Match the installed CSW24U generation, mounting points and access arrangement before ordering. A damaged cover should also prompt inspection of the chassis and internal components, especially after impact; fitting a new enclosure over bent supports or damaged wiring does not complete a safe repair.
Compatibility — Models, Versions and Exclusions
| Model or selection point | Compatibility requirement |
|---|---|
| CSW24U | Verify K77-37853 against the installed generation and parts drawing. |
| CSW24UL / K77-39428 | Different listed cover reference; do not assume interchangeability. |
| CSL slide-gate operators | Different enclosure geometry and model-specific cover requirements. |
| Front-section-only repair | Compare the individual front-cover reference with this source package. |
| Impact-damaged chassis | Repair underlying damage separately before fitting new covers. |
Identify the Panel Damage and the Enclosure Revision
Photograph the damaged cover, access area, mounting points and operator label before ordering. A vehicle impact can distort the underlying chassis even when the visible damage seems limited to the outer cover. A new shell should not be forced onto bent supports or used to hide damaged wiring or internal components.
The source package identifies both cover sections, labels, lock and keys. The service drawing also lists individual enclosure components, so compare the current supplier carton with the repair you need rather than selecting from a photograph alone. Ensure the assembly closes correctly, retains normal service access and does not obstruct the arm mechanism or pinch wiring. Restore the manufacturer warning labels in their intended visible locations.
Specifications and Product Identification
| Specification | Details |
|---|---|
| Part number | K77-37853 |
| Documented operator | CSW24U swing-gate operator |
| Source package | Both cover sections |
| Identified accessories | Labels, lock and keys |
| Separate later reference | K77-39428 for documented CSW24UL arrangements |
| Selection basis | Exact model and enclosure mounting |
Before Ordering
- Record the full operator model and existing cover reference.
- Compare the cover sections, mounting points and access arrangement.
- Inspect the chassis, wiring and arm components after impact.
- Confirm both sections, labels, lock and keys in the current source package.
Package Contents and Separate Requirements
The source offer describes both cover sections with labels, lock and keys. Confirm that the delivered package matches that inventory, especially when comparing suppliers offering individual panels. The motor, boards, batteries, arm assembly, chassis and complete operator are not included in this cover-repair scope. Any damaged support or separately needed mounting component must be identified against the actual CSW24U service drawing.
Safety Warnings — Read Before Installation or Service
- WARNING: A missing or damaged enclosure may expose moving parts and hazardous electrical components. Keep unauthorized people away and use a qualified gate technician for service.
- Isolate AC, battery and any solar power as applicable before removing or fitting the cover.
- Inspect for hidden impact damage and avoid pinching wiring or obstructing moving parts when restoring the enclosure. Do not force a cover onto distorted supports.
- Secure all required panels and guards, preserve warning labels and verify safe gate operation before returning the entrance to use.
Related Products and Important Differences
- LMRRUL monitored photo eye — a separate protection option only where the exact operator and control revision approve it; not a universal legacy retrofit.
- LMWEKITU monitored wireless edge kit — a separate edge communication system for approved controls and resistive edges; not a replacement for this mechanical or electrical service part.
Frequently Asked Questions
Is this a complete gate operator?
No. It is the CSW24U enclosure-cover repair package.
Are both cover sections specified?
Yes, in the source offer; confirm the current carton matches that package.
Are labels, lock and keys identified?
Yes. These are included in the documented cover-package description.
Will the cover repair hidden impact damage?
No. The chassis, wiring and drive components require independent inspection and repair.
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.
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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