The LiftMaster K41-0373-000 Drive Sprocket is a genuine OEM replacement component engineered for operators that utilize #48 roller chain. Designed to restore smooth, reliable motion transfer between the output shaft and chain system, this sprocket helps maintain proper door travel in select LiftMaster commercial and industrial door operators. It is intended for use in applications where a #48 chain is specified by the operator’s documentation, making it a go-to replacement part for service technicians and facility managers maintaining trolley or jackshaft-style units.
For correct application, verify that your operator calls for a #48 chain drive sprocket under the K41-0373-000 part number in the model’s parts breakdown. Installation typically involves isolating power, relieving chain tension, removing the chain link, and securing the sprocket to the output shaft per the manufacturer’s instructions; reuse of existing keys, set screws, or retaining hardware may be required. For safety and performance, follow lockout/tagout procedures and the operator manual’s torque, alignment, and chain tension guidelines. This LiftMaster replacement drive sprocket supports dependable operation in demanding commercial environments when matched to the specified operator and chain type.
| Operator Series | Compatible Models | Chain Specification |
|---|---|---|
| MAXUM 700 | TDC7S, TDC7X | #48 Roller Chain |