The LiftMaster 050ACTBLKMC is a genuine OEM replacement part (receiver logic board) for the LiftMaster 85870 3/4 HP heavy-duty chain drive garage door opener.
Check the parts diagram on the 85870 replacement parts page to confirm the correct component before ordering.
Genuine LiftMaster part — in stock and ready to ship. Call (866) 965-5599 for help.
![Liftmaster 16-41AC075-2S Receiver logic board [041AC075-2S]](https://cdn11.bigcommerce.com/s-32eq2wsbti/images/stencil/500x659/products/9761/232256/liftmaster-16-41ac075-2s-receiver-logic-board-041ac075-2s-16-41ac075-2s__82182.1724088291.jpg?c=2 "Liftmaster 16-41AC075-2S Receiver logic board [041AC075-2S]")
![Liftmaster 16-41AB050 Receiver Logic Board Assembly [041AB050-2M]](https://cdn11.bigcommerce.com/s-32eq2wsbti/images/stencil/500x659/products/14490/233494/041AB050-2M_plogic_hero_1__34769.1749066646.png?c=2 "Liftmaster 16-41AB050 Receiver Logic Board Assembly [041AB050-2M]")