Liftmaster 81550 Parts

LiftMaster 81550 Replacement Parts

Genuine replacement parts and repair components for the LiftMaster 81550 belt drive garage door opener. Use the diagram above and the part-number tables below to identify the exact component you need. Click any part number to view or order that part.

Garage Door Opener Assembly Parts

Ref	Part Number	Description
1	041A4371	Sprocket cover
2	041A4885-4	Gear and sprocket
3	041A2817	Drive and Worm Gear
4	041A8393	Front end panel with all labels
5	041C0279	Light socket
6	K108D0079M	Light lens
7	030B0532-1	Capacitor
8	K012A0373	Capacitor bracket
9	041D7440	Universal motor
10	041D7742-7	Travel module
11	041D9018	Cover
12	050ACTBMC	Logic board
13	041D0239-1	Logic Board End Panel
14	041B4245-1	Line cord
—	041A7946	Wire Harness
—	041A3150	Terminal block

Rail Assembly Parts

Ref	Part Number	Description
1	041A5434-11A	Belt - for 7 foot door
1	041A5434-13A	Belt - for 8 foot door
1	041A5434-14A	Belt - for 10 foot door
2	041B5424	Belt Pulley Bracket
3	004A1008	Master link
4	2777BD	One-Piece Rail 7 feet (2.1 m)
4	2778BD	One-Piece Rail 8 feet (2.4 m)
4	2770BD	One-Piece Rail 10 feet (3 m)
5	041B3869-3A	Trolley Assembly (Master Link, Clevis Pin, Ring, Belt Clip, Threaded Shaft, 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
7	041-0136	Safety sensor kit with receiving and sending sensors with 3 feet (.9 m) 2-conductor wire
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

Accessories

Ref	Part Number	Description
1	882LMW	Multi-function control panel
2	893LM	3-button remote control