The LiftMaster K16-4L290 Cogged V-Belt (1/2" x 29") is a durable replacement belt designed for medium-duty trolley and jackshaft door operators manufactured after 2005. Engineered for a precise fit and optimal performance, it ensures efficient operation of your commercial door system.

• Perfect Fit: Specifically sized at 1/2" x 29" for compatibility with select LiftMaster operators.

• Enhanced Grip: Cogged design provides better traction and smoother function.

• Wide Compatibility: Fits various LiftMaster medium-duty trolley and jackshaft operators made after 2005.

• OEM Quality: Genuine LiftMaster replacement ensures long-lasting performance.

• Easy Maintenance: Straightforward installation minimizes downtime and effort.