LiftMaster 28A143 Screw Drive Rail Clips Kit
The LiftMaster 28A143 is a rail clip replacement kit for compatible screw drive garage door opener rail assemblies. It helps retain rail components and support correct rail alignment.
Rail clips are small but important mechanical parts. If they are cracked, loose, or missing, the screw drive rail may not stay properly secured during opener operation.
Compatible With
This part is commonly associated with the applications below. Compatibility should be based on the original part number, opener model, rail or receiver style, and the replacement parts diagram for the exact unit.
- Select LiftMaster screw drive garage door openers
- Select Chamberlain screw drive garage door openers
- Select Sears Craftsman screw drive openers made by Chamberlain Group
- Screw drive rail assemblies that list 28A143, 041A6550, or 41A6550 in the parts diagram
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster / Chamberlain Group |
| Product Type | Screw drive rail clips kit |
| Part Number | 28A143 |
| Related Part Numbers | 041A6550, 41A6550 |
| Application | Replacement rail clips for compatible screw drive rail assemblies |
| Compatible Operator Type | Select screw drive garage door openers |
| Package Quantity | Commonly listed as 6 rail clips |
| Notes | Confirm clip style and rail type before ordering. |
Also Known As / Related Part Numbers
- 28A143
- 041A6550
- 41A6550
- 041C0556
- LiftMaster screw drive rail clips
- Chamberlain screw drive rail clip kit
Technician Note
Match this replacement part to the original part number and the equipment parts diagram before installation. Similar LiftMaster and Chamberlain service parts may look close but fit different rail styles, drive systems, generations, or wiring layouts.
Before Ordering, Confirm
- Original part number or related service number matches the listing
- Opener model and parts diagram call for this part family
- Drive type, rail style, wiring type, or remote housing style matches the original application
- No related mechanical, electrical, or door-balance issue caused the original part to fail
Professional Advisory
For electrical harnesses or opener components near moving hardware, disconnect power before service and test the operator safely after installation. If wiring is burned, the door is binding, or safety devices are missing or damaged, have the system inspected by a qualified garage door technician.
Important Ordering Warnings
- Do not confuse rail clips with wire retainers or visor clips.
- Only use on compatible screw drive rail assemblies.
- If rail sections are bent or damaged, replacing clips alone may not correct the issue.
Questions & Answers
What are LiftMaster 28A143 rail clips used for?
They are used on select screw drive garage door opener rail assemblies to help secure and retain rail components.
How many clips are in this kit?
This product is commonly listed as a six-piece rail clip kit, but package quantity should be confirmed against the actual listing before upload.
Are these clips for chain drive or belt drive rails?
No. The 28A143 / 041A6550 family is commonly associated with select screw drive rail systems, not standard belt or chain drive rail hardware.
Can broken rail clips cause opener noise?
Yes, loose or missing rail clips can allow rail movement or vibration, but worn screw drive parts, rail damage, and door balance issues can also cause noise.
What should I compare before ordering?
Compare the original clip shape, rail type, opener model, and replacement parts diagram to confirm the screw drive rail uses this clip kit.
