Problem → diagnose → fix → compatible part → repair or replace
Garage Door Openers
Start with the symptom or exact code. Verify the diagnosis before moving to repair steps, a service part, or a replacement decision.
Chamberlain B4603T accessories: match Security+ 2.0 remotes and 2021-plus sensors
For Chamberlain model B4603T, verify the yellow Learn button, Security+ 2.0 protocol, exact replacement remote/keypad model, and sensor kit generation before purchase. Chamberlain lists G953EV-P2, G940EV-P2, sensor kit 041-0136, and sensor brackets 041-0155-000 for this generation; use the exact model manual for owner checks.
Open →partsLiftMaster 8155 remote and sensor compatibility: Security+ 2.0 parts
For the exact LiftMaster 8155 1/2-HP AC belt-drive opener, the OEM parts page lists remote G891LMMC, safety sensor kit 041A5034, sensor brackets 041A5266-3, and receiver-board options 045ACT/045ACTMC. The same page identifies yellow Learn-button and Security+ 2.0 Tri-band compatibility. Verify the full label before using this non-W model record.
Open →partsLiftMaster 8155W accessory compatibility: Wi-Fi board and sensor generations
For LiftMaster model 8155W, the OEM parts diagram lists Wi-Fi receiver board 050ACTBMC, sensor eyes/brackets 041-0365-000, 2021-plus sensor kit 041-0136, and 2021-plus brackets 041-0155-000. The exact 8155W product guide identifies the Wi-Fi model's controls and radio generation. Keep it separate from the base 8155.
Open →partsLiftMaster 8365W-267 accessories: Security+ 2.0 board and sensor generations
For LiftMaster 8365W-267, the exact OEM parts page lists receiver board 050ACTBMC, sensor eyes/brackets 041-0365-000, 2021-plus safety sensor kit 041-0136, and 2021-plus brackets 041-0155-000. The Wi-Fi manual covers models 8365W and 8365W-267 and limits radio accessories to MyQ/Security+ 2.0.
Open →partsLiftMaster 8500W wall-mount opener: MyQ controls, sensors, and cable monitor
For LiftMaster model 8500W, the OEM manual states the opener works only with MyQ and Security+ 2.0 accessories and will not close unless both Protector System sensors and the cable-tension monitor are connected and properly aligned. The 8500W Product Guide lists included remote 893MAX, wall control 880LMW, sensors, lock 841LM, and remote LED light.
Open →partsLiftMaster 8550W remote and sensor parts: separate lock-capable variants
For LiftMaster 8550W, the OEM page lists receiver board 050DCTBFMC, 1997-to-current sensor eyes/brackets 041-0365-000, and 2021-plus kit 041-0136. Its exact owner manual gives safety-sensor diagnostic codes and Security+ 2.0 remote guidance. Do not confuse 8550W with 8550WL/8550WLB lock-capable variants; LiftMaster says their service kits are not interchangeable.
Open →partsLiftMaster 8587W parts: Wi-Fi receiver board and sensor-generation checks
For LiftMaster model 8587W, the OEM page links the exact Owner's Manual and lists sensor kit 041-0365-000, newer kit 041-0136, brackets 041-0155-000, and board 050ACTBMC. The board page explicitly lists 8587W and a 2011–2022 compatibility range. Preserve the W suffix and verify the installed board/sensor generation.
Open →partsChamberlain B970 sensors and radio generation: verify the exact variant
For exact Chamberlain model B970, the OEM replacement-parts page lists sensor kit 041-0136, and the compatible receiver-board page separately lists B970 and B970C. Check the full label and current Learn-button chart before selecting a remote or board.
Open →partsChamberlain B980 sensors and keypad generation: exact-model fit
For exact Chamberlain model B980, the OEM product/parts page lists sensor kit 041A5034 and sensor bracket kit 041A5266-3. The B980 owner's guide identifies Security+ 2.0 and a yellow Learn button; verify the full unit label before choosing accessories.
Open →partsChamberlain RJO20 remote programming and sensor parts
For exact Chamberlain model RJO20, the OEM page lists compatible remotes MC100-P2 and G953EV-P2 and sensor kit 041-0136. Chamberlain's RJO-specific programming article says to use the Learn button on the myQ Control Panel rather than generic motor-head programming; RJO20C remains a separate model label.
Open →partsChamberlain B1381 remote and sensor compatibility: check the lock-capable model
For Chamberlain model B1381, match remotes/keypads to its yellow Learn button and Security+ 2.0 radio, and verify the exact sensor generation on the opener's parts page. B1381 and B1381T are not identical: Chamberlain says B1381 is automatic-lock-capable and names different replacement logic boards for the two models.
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