The Chamberlain 144C56 chain cable idler pulley from Garage Door Supply Company can quickly be installed to replace your faulty Chamberlain chain idler pulley. Once the idler pulley for Craftsman garage door openers is applied, it will apply enough tension on the chain to open the garage door. This 144C56 Chamberlain chain/cable idler pulley is compatible with Chamberlain's Power Drive and Whisper Drive models.
We carry a full line of replacement parts and accessories for your Chamberlain residential garage door opener. These include fully compatible LiftMaster parts. LiftMaster and Chamberlain garage door openers and parts are made by the same company, so most parts are interchangeable.
OEM replacement part
For Chamberlain Whisper Drive or Power Drive residential garage door openers
Compatible with Chamberlain models 7920KD, 48930D, 349544, CG40D, HD920EV
Will replace idler pulleys on Chamberlain models PD210D, PD212D, PD610D,
Compatible with Chamberlain models PD612KLD, WD962KEV, 248735, D962KPEV