Belt Drive Extension Kit

for 8' High Garage Doors

Works with 3-Piece, C-Channel Belt Drive Rails

Belt Drive Extension Kit

An extension kit can be added to an existing 7', multi-piece rail design to accommodate an 8' high door. This kit is designed specifically for Genie belt drive garage door openers with a 3-piece, 7' C-Channel rail.

  • Compatible with Models: 3042, 4042, SilentMax® 1000, SilentMax® 1200

  • This kit allows the garage door opener to fully open garage doors up to 8ft. high


Installation Manuals and Support


Genie Customer Support is also available:

Monday - Friday: 8 AM - 7 PM CT
Saturday: 9 AM - 5 PM CT

Contact us by: 

Email, Chat, or Phone 1-800-354-3643