Idler Pulley Square Rail 144C56 fits Chamberlain LiftMaster Garage Door Opener

Description

One New Aftermarket Replacement Garage Door Idler Pulley
Fits Chamberlain LiftMaster Garage Door Openers.

Will also fit Fits Craftsman Chain Drive Square-Rail Garage Door models.

Tech Info:
Square Rail Part

Replaces Part Number: OTK20-0406, 144C56

Models This Part Fits:

Chain Drive Square-Rail Garage Door Models, Chain Drive Square-Rail Garage Door models, LiftMasterAdditional Information: Outer Diameter: 2-1/2″Inner Diameter: 1/2″Width: 5/8″Hub Outer Diameter: 7/8″Fits garage door openers with a square rail system.This idler pulley applies tension to guide the chain cable through the end of the rail closest to the door.

Reference Numbers:

144C56, 144C56-A, K144C0056, K144C0056-A, OTK20-0406