Front Idler Trolley Kit. For use with various LiftMaster® Logic 4.0/5.0 and MAXUM Series DC Trolley Commercial Door Operators only.

Replacement Header Bracket Kit. For use with various LiftMaster® Logic 4.0/5.0 and MAXUM Series DC Trolley Commercial Operator Rail Installations only.

Replacement Pivot Shaft Kit. For use with various LiftMaster® Logic 4.0/5.0 and and MAXUM Series DC Standard Duty and Industrial Duty Commercial Door Operators.

Replacement Take-Up Bolt Shaft (3/8" x 4").
For use with various LiftMaster® Logic 4.0/5.0 and MAXUM Series DC Trolley Commercial Operator Rail Installations only.

Left-Side Cable Tension Monitor Service Kit.
For use with various LiftMaster® MAXUM Series DC 700 lbs. to 2200 lbs. Standard-Duty and Extended-Duty Jackshaft, Jackshaft Hoist, and Trolley Commercial Door Operators.

Right-Side Cable Tension Monitor Service Kit.
For use with various LiftMaster® MAXUM Series DC 700 lbs. to 2200 lbs. Standard-Duty and Extended-Duty Jackshaft, Jackshaft Hoist, and Trolley Commercial Door Operators.

Trolley Slider Assembly Kit. For use with various LiftMaster® Logic 4.0/5.0 and MAXUM Series DC Trolley Commercial Door Operators only.

Trolley Track Spacer Assembly Kit. For use with various LiftMaster® Logic 4.0/5.0 and MAXUM Series DC Trolley Commercial Operator Rail Installations only. Complete kit includes: Trolley track spacer, Nylon chain guide pad, and installation hardware.

Replacement Straight and Curved Door Arm Kit.
For use with various LiftMaster® Logic 5.0 and MAXUM Series DC Trolley Commercial Door Operators only. Complete kit includes: Straight door arm, curved door arm, door bracket, emergency release rope, and replacement hardware.

Heavy-Duty Straight Door Arm Assembly Kit. For use with various LiftMaster® Logic 4.0/5.0 and DC MAXUM Industrial-Duty and Extended Duty Jackshaft Hoist Commercial Door Operators.