LiftMaster trolley assembly part 041A3489

Description

LiftMaster trolley assembly part 041A3489.

• Replaces trolley assemblies on T-rail chain drive garage door openers made since 1984 by LiftMaster, Chamberlain, Sears Craftsman, Wayne Dalton
• All steel construction
• Includes trolley, trolley shaft, 6-link chain extension, master link, master link cap.
• Includes master link clip-on spring, inner nut, outer nut, lock washer, inner slide.
• Installation instructions included.