The LCN Door Closer Head and Tube comes in two versions. One is 5-3/4" long and the other is 8-5/8". The square hole is 5/8", This part usually goes by the part number 4040-78H, 4040-78HL, 1260-78H, 1260-78HL, ect.,.
Specify your current closers model number when ordering. Not all of the LCN closers have the same shape spindle on the door closer cylinder. Model Available here are the:
