Liftmaster K081C0168 Screw Drive Rack Replacement Kit Models 3130 or 3240
The LiftMaster K081C0168 screw drive rack is a replacement rack used in select screw drive garage door opener rail systems. The rack works with the screw drive mechanism to move the carriage along the rail, so worn or damaged rack teeth can cause skipping, grinding, uneven travel, or failure of the opener to move the door correctly.
This part is commonly searched with older LiftMaster and Chamberlain screw drive repairs, but it is not the correct rack for every screw drive opener. LiftMaster specifically states that K081C0168 is not compatible with models 3130 or 3240 and points those applications to K081C0275.
Because the uploaded row title mentions models 3130 or 3240, this product should be manually reviewed before upload. The copy has been written to clearly separate K081C0168 from K081C0275 so customers do not order the wrong screw drive rack.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | Screw drive rack replacement kit |
| Part Number | K081C0168 |
| Application | Screw drive rail/rack replacement for select garage door openers |
| Compatible Operator Type | Select LiftMaster and Chamberlain screw drive garage door openers |
| Not Compatible With | LiftMaster 3130 and 3240 |
| Correct Rack for 3130 / 3240 | K081C0275 |
| Related Numbers | 081C0168, 81C168 |
Compatible With
Common Compatible Applications
- Select LiftMaster screw drive garage door openers whose parts diagram calls for K081C0168
- Select Chamberlain screw drive garage door openers whose parts diagram calls for K081C0168
- Older screw drive rack applications using 081C0168 or 81C168
Not Compatible With
- LiftMaster 3130
- LiftMaster 3240
Important Compatibility Notes
- Use K081C0275 for LiftMaster 3130 and 3240 models
- Do not order by rail appearance alone
- Confirm the opener model and rack part number before ordering
Also Known As / Related Part Numbers
- K081C0168
- 081C0168
- 81C168
- LiftMaster screw drive rack
- Chamberlain screw drive rack
- Related alternate rack for 3130/3240: K081C0275
Technician Note
A damaged screw drive rack often points to rail wear, carriage problems, or a door that is binding. Inspect the full rail system before installing the replacement rack.
Before Ordering Checklist
- Confirm the parts diagram calls for K081C0168
- Confirm the opener is not a LiftMaster 3130 or 3240
- If the opener is a 3130 or 3240, use K081C0275 instead
- Inspect the carriage and screw drive rail for wear
- Confirm the garage door moves smoothly by hand
Important Ordering Warnings
- The current row title references models 3130 or 3240, but LiftMaster states K081C0168 is not compatible with those models. This row needs manual title review before upload.
Professional Advisory
Do not keep running a screw drive opener that is skipping or grinding. Continued use can damage the rail, carriage, and drive parts.
Product Questions and Answers
Is K081C0168 compatible with LiftMaster 3130 or 3240?
No. LiftMaster states K081C0168 is not compatible with models 3130 or 3240.
Which rack should be used for LiftMaster 3130 or 3240?
LiftMaster points those models to K081C0275.
What are the related numbers for K081C0168?
Related numbers include 081C0168 and 81C168.
What does the screw drive rack do?
It works with the screw drive rail system to move the opener carriage during door travel.
What symptoms can indicate a bad screw drive rack?
Skipping, grinding, uneven travel, or failure of the carriage to move correctly can point to rack or rail wear.
