Genuine LiftMaster 7DUALAUXTROLLEY10 dual auxiliary trolley mod kit, jdc7 & jhdc7, to 10 ft for the Maxum industrial DC operators.
Fitment: LiftMaster Maxum JDC7 and JHDC7 jackshaft and hoist operators.
Adds a dual auxiliary trolley set to a JDC7 or JHDC7 for doors up to 10 ft high.
See the full Maxum DC Operator Accessories & Kits guide for every trolley, sprocket and mounting kit, or call us with your door height and model number and we will confirm the right kit.