16-20423 Belt for B3/X3 Operator w/BBU (40")

LiftMaster 16-20423 — Belt for B3/X3 Operator w/BBU (40"). Genuine LiftMaster replacement part, fits SL1000.

Not sure this is the right part? Send us the model number from your operator’s data plate and a photo of the part you are replacing — parts@gatehousesupplies.com or 866-965-5599. We install and service this equipment and would rather confirm it than have you order twice.