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Features
Chamberlain LiftMaster/Sears Craftsman garage door opener carriage rack for screw drive operators.
Works with carriage trolley part number 41C4677.
Also consider using Lubriplate lubricant after installing this part to prolong life and have a smooth running garage door opener.
Compatible with Chamberlain Models: 4600, 4640, 9902, PP420, PP460-2, 9950, 9960, 7902, 9950D, PD420D, PD422D, PD462D. Compatible with LiftMaster Models:1000SD, 1000SDR, 2000SD, 2000SDR, 2110, 2220, 3110,3220. Compatible with Sears Craftsman: 139.53992 and many others.
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