Compatible with LiftMaster Commercial Models:Compatible with LiftMaster commercial door operators and components including Suitable For 811LM, 811LMXc, 813LM, 813LMXc, 813LMX, 850LM, 860LM, CPICARD, Q238c, K75‑10259, 41B139, and 41DJ002. Not for use with residential systems
Cogged V-Belt Design:Measures 30.4 inches in length and 5/8 inch in width. The notched structure provides enhanced flexibility and reduces heat buildup for commercial door systems with smaller pulleys
Heavy-Duty & High-Tension Build:Constructed with reinforced tensile cords and wear-resistant rubber, this V-belt helps reliable, slip-free power transfer for continuous-duty commercial applications
Smooth Low-Vibration Operation:Designed to reduce noise and vibration during high-cycle usage. For industrial overhead doors, loading docks, and sliding gate systems
Commercial Use Only – Not Residential Compatible:This replacement belt is specifically engineered Compatible with LiftMaster commercial operators. It is not compatible with LiftMaster or not compatible with Chamberlain residential garage door openers