LiftMaster 85504 Replacement Parts
Genuine replacement parts for the LiftMaster 85504 belt drive garage door opener — a DC unit with battery backup and a built-in camera. This page also covers the 85504-267, which is the same opener supplied with an extra remote and keypad. Each section below has its own diagram and its own numbering starting at 1, so match the section name as well as the reference number.
Garage Door Opener Repair Parts
| Ref |
Part Number |
Description |
| 1 |
041C0589-2 |
Sprocket and sprocket cover with screws — no longer available |
| 2 |
041A7618 |
End panel with battery cover and light socket |
| 3 |
041A7562 |
Light lens |
| 4 |
041C0279 |
Light socket |
| 5 |
041D0277-1 |
Transformer |
| 6 |
041-0127-000 |
Cover — not currently stocked. This is the 85504's cover; the 85502 uses 041-0132-000 |
| 7 |
041D8006-1 |
Motor with travel module. Now supplied as the 041-0236-000 |
| 8 |
041D8071-4 |
Travel module |
| 9 |
041D0216-2 |
End panel and light socket |
| 10 |
050DCTB |
Receiver logic board. This is the 85504's board — the 85502 takes the lock-capable 050DCTBLK instead. Also stocked as the 050DCTBFMC |
| 11 |
485LM |
Backup battery, 12V |
| 12 |
041-0101 |
Decorative cover — 85504 and 85504-267 only |
| 13 |
041-0041 |
Camera with decorative cover — 85504 and 85504-267 only |
| — |
041B4245-1 |
Line cord (not shown) |
| — |
041A3150 |
Terminal block (not shown) |
| — |
041-0042 |
Wire harness, camera (not shown). The 85502 uses the 041D9204 instead |
Rail Assembly Parts
The rail and belt both come in three lengths. Match the length to your door height — a 7 ft door takes the 7 ft rail and the 7 ft belt.
| Ref |
Part Number |
Description |
| 1 |
041A5434-11A |
Belt — 7 ft (2.1 m) door |
| 1 |
041A5434-13A |
Belt — 8 ft (2.4 m) door |
| 1 |
041A5434-14A |
Belt — 10 ft (3 m) door |
| 2 |
041B5424 |
Belt pulley bracket |
| 3 |
004A1008 |
Master link |
| 4 |
G2777 |
One-piece rail — 7 ft (2.1 m) door |
| 4 |
G2778 |
One-piece rail — 8 ft (2.4 m) door |
| 4 |
G2770 |
One-piece rail — 10 ft (3 m) door |
| 5 |
041B3869-3A |
Trolley assembly. Includes master link (2), clevis pin, ring, belt clip, threaded shaft and tensioner assembly |
| 6 |
041B4103 |
Tensioner assembly |
| 7 |
041A6689 |
Trolley threaded shaft |
Installation Parts
| Ref |
Part Number |
Description |
| 1 |
041B0035B |
Curved door arm |
| 2 |
041A5047-1 |
Door bracket with clevis pin and fastener |
| 3 |
041A2828 |
Emergency release rope and handle |
| 4 |
041A4353-1 |
Header bracket with clevis pin and fastener |
| 5 |
K029B0137 |
Remote control visor clip |
| 6 |
041-0155-000 |
Safety sensor bracket. Replaces the 041A5266-3 shown on the diagram, which is no longer available |
| 7 |
041-0136 |
Safety sensor kit, receiving and sending sensors with 3 ft 2-conductor wire. Replaces the 041A5034 shown on the diagram |
| 8 |
4178B0034B |
Straight door arm |
| 9 |
041B4494-1 |
White and red/white wire |
| 10 |
K010A0020 |
3V CR2032 lithium battery |
| 11 |
041A5281-1 |
Extension bracket (optional) |
| — |
041A2770-6 |
Installation hardware bag (not shown) |
Accessories
These two are what the 85504-267 package added over the base 85504.
| Ref |
Part Number |
Description |
| 1 |
880LMW |
Smart Control Panel |
| 2 |
893LM |
3-button remote control. The 893MAX is the universal replacement |
Superseded Part Numbers
| Ref |
Number on diagram |
Order this instead |
| Opener 7 |
041D8006-1 |
041-0236-000 DC motor and travel module |
| Install 6 |
041A5266-3 |
041-0155-000 sensor brackets |
| Install 7 |
041A5034 |
041-0136 safety sensor kit |
85504 or 85502? Same chassis, same rail, same installation parts. The 85504 is the camera model — it adds the 041-0041 camera and 041-0101 decorative cover, and takes the 041-0127-000 cover, the 050DCTB board and the 041-0042 camera harness. The 85502 has no camera and takes the 041-0132-000 cover, the 050DCTBLK board and the 041D9204 harness. Check the model number on the front panel before ordering refs 6 or 10.
