The LiftMaster 144B41 Drive Belt Pulley 22T is a factory-designated replacement pulley for select LiftMaster belt-drive garage door openers. Featuring a 22-tooth profile, it mounts on the operator’s drive shaft to engage the belt and transfer motor power, helping restore smooth, quiet travel when a worn or damaged pulley causes slippage, noise, or irregular door movement. This replacement part is intended for belt-drive systems that specify a 22T pulley in their parts diagram and is commonly used in residential garage door opener applications.
Engineered to match the tooth pitch used in LiftMaster belt-drive systems, the 144B41 promotes proper belt tracking and consistent performance when installed and tensioned per the opener’s service instructions. Installation typically involves disconnecting power, relieving belt tension, swapping the pulley and retaining hardware, then re-tensioning the belt and confirming travel limits and safety reversal. Programming changes are not usually required, but travel and force settings should be checked after any drive component service. Because belt-drive components are model-specific, this part is not universal; verify compatibility by confirming “144B41” and “22T” in your opener’s manual or official parts list before ordering. Common search terms: LiftMaster 144B41, 22-tooth drive pulley, belt-drive garage door opener replacement, motor pulley, residential LiftMaster opener part.