Eheim Replacement Impeller 50Hz for compact ON 600 (7633678) The Eheim Replacement Impeller (7633678) is a genuine OEM spare part designed specifically for the Eheim compact ON 600 (type 1021) centrifugal pump. The impeller is the rotating component that generates the water flow in the pump — when it becomes worn, chipped, or damaged, the pump output drops, performance becomes noisy, or the unit stops circulating water altogether. Replacing with a genuine Eheim OEM impeller restores the compact ON 600 to its full rated flow of 250–600 l/h quickly and easily. Key Features Genuine Eheim replacement part: Exact OEM fit for the compact ON 600 (type 1021) — no compatibility guesswork 50Hz: Correct frequency for Australian and European electrical supply Restores full pump output: A worn or damaged impeller reduces flow and increases noise — replacement restores the full rated 250–600 l/h pump output Easy to replace: Simple component swap — can be replaced in minutes without specialist tools Ceramic shaft compatible: Designed to work with the compact ON 600 ceramic shaft — replace the shaft and bushings separately if also worn Genuine Eheim quality: Manufactured to Eheim's standards for reliable, long-lasting performance 1 impeller per pack Compatibility Compatible with: Eheim compact ON 600 (type 1021) Not compatible with: compact ON 300 (type 1020), compact ON 1000 (type 1022), or other compact ON models Frequency: 50Hz Product Details Brand: Eheim Product Code: 7633678 Type: Replacement Impeller Frequency: 50Hz Compatibility: Eheim compact ON 600 (type 1021) Quantity: 1 impeller This replacement impeller is suitable for any aquarium keeper running an Eheim compact ON 600 pump who needs to restore full pump flow and performance.
