Repairs of your LiftMaster 3950 commercial garage door opener are easy and cheaper when you buy your replacement parts from Garage Door Supply Company. LiftMaster's Model 3950 door operator for commercial rolling sheet door operations is a light-duty opener. Our DIY replacement parts include drive chains and replacement accessories specifically designed for the 3950 LiftMaster.
If you can't find the exact part you need, contact our knowledgeable staff at our U.S. company headquarters. Because LiftMaster, Sears Craftsman and Chamberlain parts are made by the same company (Chamberlain), you can often find compatible parts for your LiftMaster commercial 3950 garage door operator made by Craftsman or Chamberlain. With our easy-returns policy, we make it easy to return the part you order if you find it doesn't fit. For help with installation, we offer free technical support. Just call, email or use our "Live Chat" feature to find help replacing your commercial door opener parts.