This is the print head assembly for the Ultimaker 3 and Ultimaker 3 Extended. It includes all pictured parts here, including the printhead cable, fans, and nozzle seal. If you're looking for spare nozzle seals for this printhead, they are...
Ultimaker AA Print Core (0.4mm) (UM3/S5/S3/S7/Factor4)
$169.00
A genuine 'AA' style Ultimaker 3 print core with a 0.4mm nozzle. Can be used for printing with a range of materials including Tough PLA, Nylon, PLA, CPE, CPE+, ABS, PETG, PP, and TPU 95A. Compatible with the following Ultimaker...