Genuine LiftMaster K41-0564-000 16-tooth drive sprocket kit for #41 chain, reduces door speed about 20% on a TDC12 for the Maxum industrial DC operators.
Fitment: LiftMaster Maxum TDC12 and TDC22 trolley operators. Standard fitment on TDC22.
Standard on the TDC22. On a TDC12 it replaces the 20-tooth sprocket and slows the door about 20%.
Ordering the right part depends on the full model number, which is printed on the operator label. Call GateHouse Supplies if you are not sure — we service these units every day.
