Chamberlain C870 Replacement Parts
Genuine replacement parts for the Chamberlain C870 chain drive garage door opener with Wi-Fi. Find your part on the diagram, then click the part number in the table below.
Garage Door Opener Parts
Rail Assembly Parts
Chain and rail are sold by door height. Match the length to your door.
Installation Parts
| Part Number |
Description |
| 041B0035B |
Curved door arm section |
| 4178B0034B |
Straight door arm section |
| 041A8094 |
Door arm kit — curved and straight together |
| 41A5047-1 |
Door bracket kit |
| 41A5047-2 |
Header bracket kit |
| 41A2828 |
Emergency release rope and handle |
| 41B4494-1 |
Bell wire kit |
| 041-0136 |
Safety sensor kit. Replaces the 41A5034 shown on the diagram |
| 041-0155-000 |
Safety sensor brackets. Replaces the 41A5266-3 shown on the diagram, which is no longer available |
| 041-0365-000 |
Sensor eyes and brackets together |
| 12B776 |
Hanging bracket |
| 41A7920-1 |
Hardware kit, chain drive |
| 29B137 |
Remote control visor clip |
| 10A20 |
3V CR2032 lithium battery |
| 893MAX |
3-button remote control |
Superseded Part Numbers
| Ref |
Number on diagram |
Order this instead |
| Opener 7 |
41D8006-1 |
041-0236-000 motor and travel module |
| Opener 9 |
50DCTWF |
050DCTBFMC receiver logic board |
| Install |
41A5266-3 |
041-0155-000 sensor brackets |
| Install |
41A5034 |
041-0136 safety sensor kit |
Chamberlain and LiftMaster share parts. Both brands are made by the same manufacturer and most C870 components carry LiftMaster part numbers. A LiftMaster-branded part with the correct number is the right part.
