LiftMaster 41D3452 Limit Switch Kit
The LiftMaster 41D3452 limit switch kit is a replacement travel limit component used on select LiftMaster, Chamberlain, Sears Craftsman, and Raynor garage door openers that use mechanical limit switches inside the motor head. The limit switch assembly tells the opener where to stop during the open and close cycles, making it important for proper travel adjustment and consistent door operation. This part is commonly associated with many post-1995 chain drive and belt drive models, including older AC opener families that use mechanical limit nuts and a threaded travel shaft. It is not the correct part for newer openers that use electronic travel modules, digital encoders, or DC motor limit systems. Match the original part number, opener model, rail style, and internal limit layout before ordering. If the door overtravels, stops short, reverses unexpectedly, or cannot hold travel settings, inspect the limit assembly, wiring, and door balance before replacing parts.
Compatible With
Compatibility depends on the exact opener model, original part number, production generation, and replacement parts diagram.
- Various LiftMaster and Chamberlain garage door openers manufactured after 1995 using mechanical limit switches
- Common LiftMaster model families include 1000, 1040, 1140, 1145, 1150, 1160, 1240, 1245, 1250, 1255, 1260, 1270, 1280, 1345, 1346, 2245, 2255, 2265, 2565, 2575, 3265, 3280, 3575, 3575S, 3585S, 3595, and 3595S when confirmed by parts diagram
- Select Raynor Navigator, Pilot, and Aviator openers using the same limit switch layout
- Not for electronic travel module or DC encoder systems
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster / Chamberlain |
| Product Type | Limit Switch Kit |
| Part Number | 41D3452 / 041D3452 |
| Application | Open and close travel limit control |
| Compatible Operator Type | Select post-1995 AC garage door openers using mechanical limits |
| Related Number | 41D3013 |
| Notes | Not for openers that use electronic travel modules or DC encoder systems. |
Also Known As / Related Part Numbers
- 41D3452
- 041D3452
- 41D3013
- 041D3013
- Limit Switch Kit
- Mechanical Travel Limit Switch Assembly
Technician Note
Match this part by the original part number and opener parts diagram, not just by appearance. Similar LiftMaster and Chamberlain parts can share housings, connectors, labels, or model-family references while still fitting different opener generations.
Before Ordering, Confirm
- The original part number or parts diagram calls for this item.
- The opener model and production generation match the application.
- The physical layout, mounting points, wiring, or terminals match the original part.
- The door and opener are not showing a separate mechanical or wiring problem.
- Any safety sensors, travel limits, and reversal functions can be tested after repair.
Professional Advisory
Limit adjustments affect where the door stops and reverses. After service, test travel, force, safety reversal, and photo eye operation before returning the opener to normal use.
Important Ordering Warnings
- Do not assume compatibility from brand name alone.
- Similar-looking parts may not be interchangeable.
- If the part was damaged by binding door movement, wiring faults, water intrusion, or power surge, correct the cause before installing the replacement.
Questions & Answers
What does the 41D3452 limit switch kit control?
It controls where the garage door opener stops in the open and close directions on compatible mechanical-limit opener systems.
What opener style uses this limit switch kit?
It is used on select older LiftMaster, Chamberlain, Sears Craftsman, and Raynor openers with mechanical limit nuts and a threaded travel shaft.
Will this fix an opener that runs past the correct stop point?
It may help if the limit switch assembly is worn or damaged, but travel nuts, wiring, door balance, and limit adjustment should also be checked.
Is 41D3452 used on newer DC garage door openers?
No. Newer DC openers often use travel modules or encoder-style systems instead of this mechanical limit switch kit.
Is 41D3013 related to 41D3452?
Yes. 41D3013 is commonly listed as an also-known-as or related number for the 041D3452 limit switch kit.
