HP Spindle Kit C2389A is compatible in the following HP Models:

HP DesignJet Spindles

HP 24-INCH SPINDLE - C2389A

HP DesignJet Copier series

HP DESIGNJET CC800PS COPIER - Q1262A

HP DesignJet 820 MFP series

HP DESIGNJET 820 MFP - Q6685A

HP DesignJet 800 Printer series

HP DESIGNJET 800 PRINTER (24 IN) - C7779B
HP DESIGNJET 800 REMARKETED PRINTER (24 IN) - C7779BR
HP DESIGNJET 800PS PRINTER (24 IN) - C7779C