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 kit |
| 02 | 041A5585 | Gear and sprocket kit, 3/4 HP |
| 03 | 041A2817 | Drive gear and worm kit |
| 04 | 041B4245-1 | AC power cord, 6 ft |
| 05 | 041A5484 | End panel |
| 06 | 041C0279 | Light socket kit |
| 07 | K108D0079M | Light lens |
| 08A | K030B0532-1 | Capacitor, 56 uF, 220V |
| 08B | 030B0619 | Capacitor, 40 uF, 220V — not currently stocked |
| 08C | 041A5637 | Resistor kit, 3/4 HP |
| 09 | 041A3150 | Terminal block kit |
| 10 | 41D5563-1 | Motor, 3/4 HP — universal replacement motor and bracket assembly |
| 11 | 041A5633-2 | Cover — not currently stocked |
| 12 | 041A2818 | Limit switch drive gear kit — not currently stocked |
| 13 | 041D3452-2 | Limit switch kit |
| 14 | 041A2822-1 | Interrupter cup |
| 15 | 041C4398A | RPM sensor kit |
| 16 | 041AC075-2S | Receiver logic board, 3/4 HP single capacitor — current |
| 16 | 041AC075-2A | Logic board, 315 MHz dual capacitor — discontinued |
| 16 | 041A5635A | Logic board, 390 MHz — discontinued |
| 17 | 041C5588 | Wire harness kit, high voltage, 3/4 HP |
| 17A | 041C5587 | Wire harness kit, low voltage — no longer available |
| 18 | 041D0180-1 | End panel |
| — | 041A2825 | Hardware kit — not shown on diagram |
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. Rail Assembly Parts
| Ref | Part Number | Description |
|---|---|---|
| 1 | 004A1008 | Chain, #48, with master link |
| 2 | 041C5141-1 | Square rail trolley kit |
| 3 | 041A5665 | Rail kit, 7 ft |
| 4 | K144C0056 | Square rail idler pulley |
| 5 | 041A5807-3 | Chain and cable kit — 7 ft door |
| 5 | 041A5807-4 | Chain and cable kit — 8 ft door |
| 5 | 041A5807-2 | Chain and cable kit — 10 ft door |
| 6 | 041D0598-1 | U bracket adapter |
| — | 041A7276 | Trolley wear pad kit — not shown on diagram |
| — | K083A0011-1 | Lithium rail grease — not shown on diagram |
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. Installation Parts
| Ref | Part Number | Description |
|---|---|---|
| 1 | 041C472-5 | Wall-mounted door control panel |
| 2 | G953CB | 3-button remote control. The 893MAX is the current universal replacement |
| 3 | K010A0020 | 3V CR2032 lithium battery |
| 4 | K029B0137 | Remote control visor clip |
| 5 | 041A2828 | Emergency manual release rope |
| 6 | 041B4494-1 | White / red bell wire |
| 7 | 041A5047-1 | Door bracket |
| 8 | 041A5047-2 | Header bracket |
| 9 | 041-0136 | Safety sensor kit — replaces the older 41A5034 |
| 10 | 4178B0034B | Straight door arm |
| 11 | 041B0035B | Curved door arm |
| 12 | 041-0155-000 | Safety sensor bracket kit |
| 13 | 041A5281-1 | Safety sensor extension bracket kit |
| — | 041A7920 | Hardware kit — not shown on diagram |
| — | K012B0776 | Hanging bracket kit — not shown on diagram |
4. Safety Sensors and Extras
| Ref | Part Number | Description |
|---|---|---|
| — | 041-0365-000 | Sensor eyes and brackets — the complete set |
| — | 041B0873 | Sunblocker bracket — stops sunlight false-tripping the eye |
| — | 041A8094 | Door arm kit — curved and straight sections together |
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