Upgrade 41C5141-1& 41C5141-2 Garage Door Opener Trolley Fit for LiftMaster Chamberlain Sears Craftsman Belt Drive Garage Door Opener Trolley with Square Rail

Features

• ✴️【Function】A good trolley travels smoothly on the square rail of the garage door opener, while a bad one could easily get lodged or repeatedly falls off of the rail and makes it difficult for door move.
• ✴️【Compatibility】Compatible with LiftMaster, with Chamberlain, and with Craftsman square rail chain drive models.
• ✴️【Signs for Repair】If your trolley 1) gets broken, for example, it is bent and leads to failed catch-in, 2) has any key parts missing or worn out, say, the spring allowing release flies away, just have this kit and make the trolley anew with good performance.
• ✴️【Quality】Made of premium steel, this product has great durability and resistance to corrosion, which will promise its long life span. Decently constructed, it will go smoothly with the trail and effectively reduce noise.
• ✴️【Items Included】1*square rail trolley, 1*belt tensioner,1* clevis pin and 1* ring
• ✴️【Friendly Service】 A full return is available within 30 days if you are not satisfied; we also offer a 12-month warranty from the date of purchase to make sure that you have good experience.