LiftMaster ATSW Replacement Parts — Light-Duty Commercial Trolley Operator
Genuine replacement parts for the LiftMaster ATSW light-duty commercial and residential trolley operator. 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.
Security+ 2.0 and myQ only. The ATSW works with Security+ 2.0 and myQ accessories — older remotes and keypads will not program to it. The model number label is on the left panel of the operator. Rated for a maximum of 8 door cycles per hour.
Garage Door Opener Parts
| Ref |
Part # |
Description |
| 1 |
041C5069 |
Chassis support bracket |
| 2 |
041A5615 |
Chain spreader |
| 3 |
041A5585 |
Gear and sprocket |
| 4 |
041A7756-1 |
End panel |
| 5 |
041C0279 |
Light socket |
| 6 |
041A7562 |
Light lens |
| 7 |
030B0532-1 |
Capacitor |
| 8 |
012A0373 |
Capacitor bracket |
| 9 |
041-0031 |
Motor with travel module — not currently stocked |
| 10 |
041D7742-7 |
Travel module |
| 11 |
041-0014 |
Cover — not currently stocked |
| 12 |
050ACTWFATS |
Receiver logic board — not currently stocked |
| 13 |
041D8198 |
Logic end panel |
| — |
041A7814 |
Wire harness (not shown) |
| — |
041B4245-1 |
Line cord (not shown) |
| — |
041A3150 |
Terminal block (not shown) |
Rail Assembly Parts
Chain and rail are sold by door height and must match. The ATSW takes an I-beam rail up to 14 ft.
| Ref |
Part # |
Description |
| 1 |
041D3483 |
Chain — 8 ft door |
| 1 |
041D3485 |
Chain — 10 ft door |
| 1 |
19-5812 |
Chain — 12 ft door |
| 1 |
19-5814 |
Chain — 14 ft door |
| 2 |
041A2780 |
Chain pulley bracket |
| 3 |
19-48ML |
Master link — not currently stocked |
| 4 |
CD1008 |
Rail — 8 ft (2.4 m) door |
| 4 |
CD1010 |
Rail — 10 ft (3 m) door |
| 4 |
CD1012 |
Rail — 12 ft (3.6 m) door |
| 4 |
CD1014 |
Rail — 14 ft (4.2 m) door |
| 5 |
041A3489 |
Trolley assembly |
| 6 |
K109B0018 |
Trolley threaded shaft — not currently stocked |
| — |
K083A0011-1 |
Rail grease (not shown) |
Installation Parts
| Ref |
Part # |
Description |
| 1 |
041B0035B |
Curved door arm |
| 2 |
041A5047 |
Door bracket with clevis pin and fastener |
| 3 |
041A2828 |
Emergency release rope and handle |
| 4 |
041A4353 |
Header bracket with clevis pin and fastener |
| 5 |
041A4373ATS |
Safety sensor kit — not currently stocked. The 041-0136 is the current LiftMaster eye kit |
| 6 |
041A6569 |
Safety sensor bracket — not currently stocked. See the 041-0155-000 |
| 7 |
041A5281-1 |
Extension brackets |
| 8 |
4178B0034B |
Straight door arm |
| 9 |
041B4494-1 |
White and red/white wire |
| — |
041A2770-17 |
Hardware kit (not shown) |
Accessories
| Part # |
Description |
| 041A6104 |
Cable tension monitor |
| 883LMW |
Push button door control, Security+ 2.0 |
| 893MAX |
3-button remote control |
