Made from high quality carbon material, these carbon brushes are built to be durable and long lasting for KitchenAid mixer motors. Designed with excellent wear resistance, they are engineered to withstand repeated use and motor cycles without quick degradation. Broad compatibility across KitchenAid models, including 4K series (examples: 4K45SS, 4K5SS, 4KSM150, 4KSM50, 4KSM90), 5K series (examples: 5K45SS, 5K5SS, 5KPM50, 5KPM5, 5KSM150, 5KSM45, 5KSM5), 8K series (8KSM90), and 9K series (9KSM150, 9KSM90), as well as other popular models such as K45SS, K45WSS, K5SS, KP50P, KPM5, KPM50, KSM100, KSM103. This broad compatibility helps you service a wide range of mixers with a single replacement part. Interchangeable part: W10380496 is a versatile replacement that replaces multiple part numbers, including 3184115, 4159774, 4159794, 4159795, 4162648, 4169975, 4176056, 9706416 and related equivalents, simplifying stocking and repairs. Function and performance: These brushes ensure reliable electrical contact to the motor, helping restore steady performance and reduce motor issues caused by worn brushes. Fit and size: Designed to fit standard replacement size for KitchenAid mixer motors, ensuring compatibility with the listed models. Please verify model compatibility for best results. What this product is for: Replace worn or degraded carbon brushes to restore motor performance, reduce noise and sparking, and extend the life of your KitchenAid mixer. Use scenarios: - Home repair: A home cook notices motor sounds or reduced power in a stand mixer; replace worn brushes to restore normal operation. - Professional repair: Appliance repair technicians stock these brushes to service a wide range of KitchenAid mixers in a workshop. - Service kit: Include in a general mixer repair or maintenance kit for consistent, ready-to-use replacements. Note: Ensure model compatibility with the listed KitchenAid models before installation.