LiftMaster 8164W Chain Drive Replacement Parts
LiftMaster 8164W Replacement Parts
Genuine replacement parts for the LiftMaster 8164W chain drive garage door opener with Wi-Fi. 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. Click any part number to order.
Garage Door Opener Repair Parts
| Ref | Part Number | Description |
|---|---|---|
| 1 | 31D380 | Sprocket cover |
| 2 | 41C4220A | Gear and sprocket assembly (aka 41A2827). Aftermarket version also available: 41C4220A aftermarket |
| 3 | 41A2817 | Drive and worm gear kit — the most common chain drive failure |
| 4 | 041A8393 | Front end panel with all labels |
| 5 | 041C0279 | Light socket |
| 6 | 108D79 | Light lens |
| 7 | 030B0532-1 | Capacitor |
| 8 | 12A373 | Capacitor bracket |
| 9 | 041D7440 | Universal motor |
| 10 | 041D7742-7 | Travel module |
| 11 | 041D9018 | Cover |
| 12 | 050ACTWF | Wi-Fi logic board, now supplied as the 050ACTBMC |
| 13 | 041D0239-1 | Logic board end panel |
| — | 041B4245-1 | Line cord, 6 ft (not shown) |
| — | 041A3150 | Terminal block with screws (not shown) |
| — | 041A7946 | Wire harness (not shown) |
Rail Assembly Parts
The rail and chain 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 chain.
| Ref | Part Number | Description |
|---|---|---|
| 1 | 004A1008 | Master link kit |
| 2 | 041A4813 | Chain pulley bracket |
| 3 | 041A3489 | Complete trolley assembly. Includes threaded shaft, nuts, washer, clevis pin, ring, master link and chain extension |
| 4 | G1707 | One-piece rail — 7 ft (2.1 m) door |
| 4 | G1708 | One-piece rail — 8 ft (2.4 m) door |
| 4 | G1710 | One-piece rail — 10 ft (3 m) door |
| 5 | 041D3484 | Full chain assembly — 7 ft (2.1 m) door |
| 5 | 041D3483 | Full chain assembly — 8 ft (2.4 m) door |
| 5 | 041D3485 | Full chain assembly — 10 ft (3 m) door |
| — | K083A0011-1 | Lithium rail grease (not shown) |
Installation Parts
| Ref | Part Number | Description |
|---|---|---|
| 1 | K010A0020 | 3V CR2032 lithium battery |
| 2 | K029B137 | Remote control visor clip |
| 3 | 041A2828 | Emergency release rope and handle assembly |
| 4 | 041B4494-1 | 2-conductor bell wire, white and white/red |
| 5 | 041A5047 | Door bracket with clevis pin and fastener |
| 6 | 041A4353 | Header bracket with clevis pin and fastener |
| 7 | 041-0136 | Safety sensor kit, sending and receiving sensors with 3 ft bell wire. Replaces the 041A5034 shown on the diagram |
| 8 | 4178B0034B | Straight door arm section |
| 9 | 041B0035B | Curved door arm section |
| 10 | 041-0155-000 | Safety reversing sensor brackets, pair. Replaces the 041A5266-3 shown on the diagram, which is no longer available |
| 11 | 883LMW | Push button door control |
| — | 041A2770-6 | Installation hardware bag (not shown) |
Superseded Part Numbers
The diagrams print the original numbers. These parts are now supplied under new numbers — order the current part.
| Ref | Number on diagram | Order this instead |
|---|---|---|
| Install 7 | 041A5034 | 041-0136 safety sensor kit |
| Install 10 | 041A5266-3 | 041-0155-000 sensor brackets |
8164W or 8165? Both are AC chain drives on the same rail, but the 8164W has Wi-Fi. Its board is the 050ACTWF, its end panel is the 041A8393 and its cover is the 041D9018 — all different from the 8165. Check the model number on the front panel before ordering refs 4, 11 or 12.