Impeller for Hagen Fluval 104–204 aquarium filter models, replacement part (MPN 07086)

Replacement impeller designed for Hagen Fluval 104 and 204 aquarium filter models. This genuine impeller restores the rotor function within compatible external Power filters to re-establish proper water flow and circulation. It is intended for periodic maintenance or repair when the original impeller shows signs of wear, noise, decreased flow, or impeller shaft wobble, and helps maintain reliable filtration performance in hobby aquariums.

Advantages

This replacement impeller fits the specified Fluval 104 and 204 series filter housings and is engineered to restore pump rotation and water movement with minimal installation effort. It reduces vibration and operational noise when properly installed, helps recover rated flow performance of the filter, and extends the service life of the unit by replacing worn rotating components. The part is compact and made for compatibility with the original impeller chamber and magnet assembly of the stated models.

Suitable for

• Repairing or maintaining Hagen Fluval 104 and 204 series external/Power filters
• Restoring reduced water circulation or flow in compatible aquarium systems
• Replacing worn or damaged impellers to reduce noise and vibration
• Routine preventive maintenance to preserve filter performance

Key specifications

• Component type: rotating impeller for canister/external filter pump assembly
• Compatibility: designed for Fluval 104 and Fluval 204 external filters
• Function: drives water circulation within the filter's magnet/rotor system
• Material characteristics: durable molded plastic rotor with balanced vanes suitable for freshwater and typical planted aquaria
• Form factor: compact radial impeller designed to fit the original impeller chamber and shaft dimensions of the stated models

How to use

Turn off and disconnect the filter from power, then remove the filter head and access the impeller chamber following the filter manufacturer's instructions. Extract the old impeller assembly carefully, inspecting the rotor shaft, housing, and magnet surface for debris, wear, or calcium deposits. Clean the chamber and magnet surfaces with fresh water or a soft brush if necessary. Install the replacement impeller by seating it into the chamber and ensuring it rotates freely without contact or binding. Reassemble the filter head, reconnect the intake and outlet hoses as required, prime or refill the unit if applicable, and restore power. Verify smooth rotation and correct water flow before leaving the system unattended.

Usage recommendations

For reliable operation, inspect and clean the impeller and chamber every few months or sooner in heavily stocked or hard-water aquaria. Replace the impeller at the first signs of wear, imbalance, or persistent noise. Use only compatible replacement parts to ensure proper fit and magnetic coupling with the filter pump assembly.