LiftMaster 19-4001M — Master Link, #40. Genuine LiftMaster replacement part, fits SW2000.
| Part number | 19-4001M |
|---|---|
| Description | Master Link, #40 |
| Brand | LiftMaster |
| Fits | SW2000 |
Chain stretches with use. A stretched chain jumps teeth, chatters, and eventually fails under load — re-tension at every service and replace when adjustment runs out.
Not sure this is the right part? Send us the model number from your operator’s data plate and a photo of the part you are replacing — parts@gatehousesupplies.com or 866-965-5599. We install and service this equipment and would rather confirm it than have you order twice.
