Description

Product Description 【Durable Material】:Screw Drive Coupler is made of high-strength polyurethane material, greatly increasing the product's wear resistance, low temperature resistance, aging resistance, and high hardness. It adopts integrated injection molding technology to ensure the accuracy of product dimensions. 【Simple Installation】:If the Garage door makes noise but cannot be opened, it may be that there is a problem with the coupler. First, disconnect the power supply of the garage door opener, remove two bolts, remove the disconnected coupler, connect new guide rails and bolts, and finally, connect the power supply and check. 【Universal Compatibility】:Garage Door Opener Sprocket Coupler Part Fit for Liftmaster models 1000SD, 2000SD, 1000SDR, 2000SDR, 2110, 2220;Fit for Chamberlain models 4600, 4620, 4640, 9902, PD420, PD460-2, 9950, and more. 【Dimensions】: 1.57 inches long, 1.18 inches outer diameter, 0.8 inches inner diameter, 0.8 inches inner diameter, with 8 grooves 【Replacement Part Number】:25C20 25A18 【Package Includes】:4 PCS Screw Drive Coupler Part. Durable Material Replacement Part Number Universal Compatibility Fit for Liftmaster models 1000SD, 2000SD, 1000SDR, 2000SDR, 2110, 2220 Fit for Chamberlain models 4600, 4620, 4640, 9902, PD420, PD460-2, 9950, and more.