(15) Garage Door Opener DRIVE GEARS Compatible w Chamberlain 4100 5100 7200 1200 model-LS185.B Replaces Part Number(s): D89104

Replaces Part Number(s): D89104

Breaking Strength Rate: 18

6600 (WITH A/C S/N 152145-LATER)

- Universal Joint Dimensions: 27

(15) Garage Door Opener DRIVE GEARS Compatible w Chamberlain 4100 5100 7200 1200 model-LS185.B Replaces Part Number(s): D8910415 Pack Aftermarket Replacement Garage Door Opener Drive Gear and Worm Sets for Chamberlain, LiftMaster, Sears Craftsman and More This listing is for a pack of (15) aftermarket replacement Drive Gear and Worm Sets for chain drive and belt drive residential garage door openers. Each set includes a helical drive gear, a worm gear, two tension roll pins, and a grease packet everything needed to restore a stripped or worn gearbox and get the opener