Chamberlain PD752, PD758 & 248735S Chain Parts
Chamberlain PD752, PD758 and 248735S Replacement Parts
These are 3/4 HP chain drive openers. One parts list covers the range:
- PD752
- PD752D
- PD758D
- PD758S
- 248735S
Logic board — count your capacitors first. The 041AC075-2S is the current 3/4 HP board and fits single capacitor units only. The dual capacitor version (41AC075-2A) and the original 41A5635 are both discontinued with no substitute — the 2S will not work in their place. Look inside the end panel and count the capacitors before ordering, and call (866) 965-5599 if yours has two.
Motor runs but the door does not move? That is the 041A5585 gear and sprocket assembly — the nylon gear strips. Note this is the 3/4 HP gear set, not the 041C4220A used on the lighter 1/2 HP Chamberlain chain drives.
1. Garage Door Opener Repair Parts
Reference numbers below follow the Chamberlain parts breakdown for this model range.
| Ref | Part Number | Description |
|---|---|---|
| 01 | 041A5615 | Chain spreader |
| 02 | 041A5585 | Gear and sprocket assembly, 3/4 HP |
| 03 | 041A2817 | Gear kit |
| 04 | 041B4245-1 | Line cord, 6 ft |
| 05 | 041A5484 | End panel with all labels |
| 06 | 041C0279 | Light socket |
| 08C | 041A5637 | Resistor |
| 09 | 041A3150 | Terminal block with screws |
| 10 | 41D5563-1 | Universal replacement motor and bracket assembly, 3/4 HP |
| 13 | 041D3452-2 | Limit switch assembly |
| 14 | 041A2822-1 | Interrupter cup |
| 16 | 041AC075-2S | Receiver logic board, 3/4 HP single capacitor — current |
| 16 | 41AC075-2A | Receiver logic board, dual capacitor — no longer available |
| 16 | 41A5635 | Receiver logic board, original — no longer available |
| 17 | 41C5588 | High voltage wire harness |
| 17A | 41C5587 | Low voltage wire harness — no longer available |
| 18 | 041D0180-1 | End panel |
| — | 041A2770-17 | Installation hardware kit |
This is a 3/4 HP opener, so its gear set (041A5585), motor (41D5563-1) and board (041AC075-2S) all differ from the 1/2 HP Chamberlain chain drives. Parts from the PD210 or CG40D pages will not fit.
2. Chain and Rail
| Ref | Part Number | Description |
|---|---|---|
| — | 041A5807-4 | Chain and cable — 8 ft door |
| — | 041A5807-3 | Chain and cable — 7 ft door, square rail |
| — | 004A1008 | Master link kit |
| — | 041A5665 | Square rail assembly |
| — | 041C5141-1 | Complete trolley assembly, square rail |
| — | 041D0598-1 | U bracket, square rail |
| — | K144C0056 | Cable idler pulley |
| — | 183A163 | Wear pads |
The chain is sized to your door height — measure the door opening, not the rail. A slack chain can usually be re-tensioned rather than replaced. See all Chamberlain chain drive rail parts.
3. Safety Sensors and Brackets
| Ref | Part Number | Description |
|---|---|---|
| — | 041-0136 | Safety sensor eye kit — replaces 41A5034 |
| — | 041-0155-000 | Safety sensor brackets, 2021 to present |
| — | 041-0365-000 | Sensor eyes and brackets — the complete set |
| — | 041B0873 | Sunblocker bracket — stops sunlight false-tripping the eye |
| — | 041B4494-1 | 2 conductor bell wire, 26 ft |
The current 041-0136 eye kit replaces the older 41A5034 and fits Chamberlain and LiftMaster openers alike. If your brackets are bent or missing too, the 041-0365-000 includes eyes and brackets together.
4. Door Hardware and Remotes
| Ref | Part Number | Description |
|---|---|---|
| — | 041B0035B | Curved door arm |
| — | 4178B0034B | Straight door arm section |
| — | 041A8094 | Door arm kit — curved and straight sections together |
| — | 041A5047-1 | Door bracket with clevis pin and fastener |
| — | 041A2828 | Emergency release rope and handle |
| — | 893MAX | 3 button remote control — universal replacement |
| — | 041C0494-2 | Multi-function door control panel |
The 893MAX replaces every older Chamberlain, LiftMaster and Craftsman remote. Browse all Chamberlain remote controls.
More Chamberlain Parts
All Chamberlain opener parts · Chain and master links · Chamberlain remote controls