Details
This is the original Eheim replacement impeller, part number 7644990, for the Eheim universal 300 (1046) pump: the high performance ceramic impeller unit with the pump blades, the permanent magnet rotor and the ceramic shaft. Eheim lists it as the 50 Hz version.
Properties
- Part number
- 7644990
- Type
- Impeller (50 Hz), high performance ceramic
- Fits
- Eheim universal 300 (1046)
- Parts
- Pump blades, permanent magnet rotor, ceramic shaft
- Pieces in the pack
- 1
Bring a 1046 back to full flow
The impeller is the only moving part of the pump. When the blades are worn or damaged, or the shaft is scored, a new impeller unit restores the flow and quiet running of an Eheim 1046, a pump that has served in many water cooling loops.
Ceramic shaft
Eheim calls this the high performance ceramic impeller. The shaft is ceramic, which is hard and wear resistant.
Where it sits
In the Eheim exploded drawing of the universal 300 the impeller set sits between the motor housing and the pump cover. Open the pump cover, pull out the old impeller, insert the new one and close the cover again.
Technical data
| Part number | 7644990 |
| EAN | 4011708761946 |
| Description | Impeller (50 Hz), high performance ceramic, for universal 300 |
| Fits | Eheim universal 300 (1046) |
| Packing | 1 part |
Notes
- Eheim lists this impeller as the 50 Hz version and a separate 60 Hz impeller (7644980) in the same drawing. Check which mains frequency your pump runs on.
In the box
- 1x Eheim impeller 7644990 with ceramic shaft




