Based on this product's specifications, here are some alternatives and similar models
Extruder assembly for Flashforge Creator3 model 20000917001
Summary description:
Replacement extruder assembly compatible with Flashforge Creator3, model 20000917001 (MPN 20000917001, EAN 6971940401605). Designed for filament feeding and melt delivery in the Creator3 printer, it restores extrusion reliability and print quality after wear or damage. Suited for maintenance, part replacement, and repairs to reduce downtime and ensure consistent printing performance.