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Search the complete model number, symptom, or error code for garage door openers. Exact-model part evidence and owner guidance are shown separately.

Exact-model parts searchGarage Door Openers

Exact model identity found: 8557. The linked guide has direct manufacturer-source evidence for this model.

47 published part-compatibility guides checked for Garage Door Openers. This is current guide coverage, not a count of every OEM part.

Exact model · 8557

LiftMaster 8557 belt, sensor, and Security+ 2.0 board parts

Part type: Exact LiftMaster 8557 receiver-board, sensor, and door-height belt lookup. Review the manufacturer evidence below and confirm the full appliance identifier before ordering.

LiftMaster Canada: 8557 Replacement Parts and Owner Manual Links (Canada)Exact 8557 heading, 3/4-HP AC belt-drive description and discontinued status; diagram lists 045ACT/045ACTMC, 041A5034/041A5266-3, and 7/8/10-foot belt kits; links 8557 sell sheet/spec and shared 8550/8557 Owner’s Manual.Open source ↗LiftMaster: 045ACT Receiver Logic Board, 2.0Lists 8557 as compatible and marks the 045ACT part discontinued; identifies legacy aliases and does not assign a serial-specific replacement.Open source ↗LiftMaster Canada: 045ACTMC Receiver Logic Board, 2.0Lists 8557 as compatible and limits the replacement board to compatible openers manufactured after 2011; describes Security+ 2.0 and yellow Learn button for this part.Open source ↗LiftMaster: 041A5034 Safety Sensor KitLists 8557 as compatible; says kit is discontinued and required for safe operation; warns 041A5034 is not a replacement for 041A4373A sensors.Open source ↗