Based on this product's specifications, here are some alternatives and similar models
Guide rail for Flashforge Guider 3 Plus X-axis (MPN 80003378002)
Summary description:
Replacement guide rail designed for the Flashforge Guider 3 Plus 3D printer X-axis, model MPN 80003378002. Intended to restore or maintain accurate X-axis motion and alignment. Use for repair or maintenance of the Guider 3 Plus to ensure stable linear movement and consistent print quality. Practical for service technicians and users performing component replacement.