Achieve ideal tightness for your garage door system with this tensioner, preventing any unwanted sagging or looseness that can interfere with smooth operation. Made of high-quality materials, this tensioner offers exceptional strength and resilience for long-lasting use, maintaining elasticity for reliable performance. Compatible with 41B4103 Tensioner Assembly for LiftMaster and Chamberlain Garage Door Openers, replacing part numbers 41B3869-1, 41B3869-3, 41C5141-1, and 41C5141-2. Simple installation can be completed in just minutes using common tools like a wrench and flat screwdriver, allowing for quick setup. Delivers consistent and stable tension across your garage door system, ensuring a quieter and smoother operation while eliminating annoying noises. This tensioner is designed to enhance the functionality of your garage door system by providing the necessary tightness to prevent sagging. Its durable construction ensures it withstands frequent use, making it a reliable choice for maintaining optimal performance. The easy installation process means you can quickly get back to using your garage door without any hassle. Enjoy a smoother and quieter experience every time you operate your garage door. Color: As Shown Material: Metal Package Contents: 1set Garage Door Openers 41B4103 Tensioner Assembly and Bolts