Liftmaster 41A5532 - Gear case
The LiftMaster 41A5532 gear case kit is a replacement component for select LiftMaster and Chamberlain AC chain drive and belt drive garage door openers. It is commonly listed by the current service number 041A5532 and by the older/reference number 41A5532.
Common Application
This gear case kit is commonly associated with select AC chain drive and belt drive models, including 8587, 8587W, 8587WL, 8557, and 85870 when confirmed by parts diagram.
When This Part Is Usually Ordered
- Original gear case is cracked, broken, or worn
- Drive assembly service identifies 41A5532 or 041A5532
- Opener has a compatible AC chain drive or belt drive setup
- Gear or sprocket repair requires matching housing components
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster / Chamberlain |
| Product Type | Gear case kit |
| Part Number | 41A5532 |
| Current / Service Part Number | 041A5532 |
| Application | Select garage door opener drive assemblies |
| Compatible Operator Type | Select LiftMaster and Chamberlain AC chain drive and belt drive openers |
| Common Model References | 8587, 8587W, 8587WL, 8557, 85870 when confirmed |
| Notes | Housing-style service part; not a universal gear repair kit |
Also Known As / Related Part Numbers
Technician Note
A broken gear case is often a symptom of a stressed drive system. Check door balance, rail alignment, chain or belt tension, sprocket wear, and related drive parts before returning the opener to service.
Before Ordering
- Confirm the opener parts diagram lists 41A5532 or 041A5532
- Verify the opener model and drive type
- Inspect gear, sprocket, chain or belt, and rail parts at the same time
- Check the garage door for proper balance before opener operation
- Do not reuse damaged drive hardware with a new gear case
Professional Advisory
Drive assembly repairs involve moving opener parts and stored spring force from the garage door system. Disconnect power and use a qualified technician if the door is heavy, binding, or unsafe.
Product Questions & Answers
What is the LiftMaster 41A5532 part?
It is a replacement gear case kit for select LiftMaster and Chamberlain AC chain drive and belt drive openers.
Is 041A5532 the same as 41A5532?
Yes. 041A5532 is the current service-style listing, and 41A5532 is the related part number.
Which models are commonly associated with this gear case?
Common references include 8587, 8587W, 8587WL, 8557, and 85870 when the opener parts diagram confirms the part.
Will replacing the gear case fix stripped gears?
Only if the gear case is the failed component. Stripped gears, worn sprockets, bad rail alignment, or a heavy door may require additional service.
Should the door be checked before replacing this part?
Yes. A poorly balanced or binding garage door can damage opener drive parts quickly, including gear case components.
