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041C4398A is a RPM Sensor Replacement Kit. For use with various LiftMaster® and Chamberlain® Garage Door Openers; featuring a 5-bladed photo interrupter sensor; manufactured after 1997 only. Check the owner's manual or replacement parts diagram for specific part information before ordering to ensure compatibility.

Also known as: 1A4903, 41C3005, K75‑16426, 41B3000, 41C4398A, 41C4398, 41C4398‑1

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