Sta-Rite C105-238PDBA Impeller
The Sta-Rite C105-238PDBA is a replacement impeller, built for Sta-Rite Dyna-Glas/Dyna-Max Series in-ground pool and spa pumps. The impeller is the spinning wheel inside the pump body that actually moves water: it bolts or threads onto the motor shaft and its curved vanes fling water outward into the diffuser or volute as it spins.
Impeller wear shows up as reduced flow, reduced pressure, or a pump that runs longer than it used to for the same amount of water delivered. Left too long, a badly worn or chipped impeller can also unbalance the motor shaft and shorten bearing and seal life elsewhere in the pump, so it is worth replacing at the first sign of falling performance rather than waiting for a full failure.
Key Features
- Genuine-fit Sta-Rite C105-238PDBA replacement impeller
- Molded for a balanced, vibration-free spin on the motor shaft
- Built for Sta-Rite Dyna-Glas/Dyna-Max Series in-ground pool and spa pumps
- Restores lost flow and pressure caused by a worn or chipped impeller
- Direct fit replacement, no pump modification required
Applications
- Restoring flow and pressure on a Sta-Rite pump that has lost performance
- Rebuilding Sta-Rite Dyna-Glas/Dyna-Max Series in-ground pool and spa pumps
- Replacing an impeller chipped or jammed by sand, grit, or a dry-run incident
- Routine wear-part replacement on residential and light-commercial water pumps
Specifications
- Brand: Sta-Rite
- Manufacturer Part Number: C105-238PDBA
- Part Type: Impeller
- Fits: Sta-Rite Dyna-Glas/Dyna-Max Series in-ground pool and spa pumps
- Quantity Per Pump: 1
- Condition: New
Frequently Asked Questions
Q: What causes an impeller to wear out?
Sand and grit in the water, cavitation from running against a closed or restricted line, and simple age all wear the vanes down over time. Running the pump dry, even briefly, can chip or crack an impeller outright.
Q: Can a chipped impeller be repaired instead of replaced?
No. A chipped or cracked impeller is out of balance and should be replaced rather than repaired; running an unbalanced impeller accelerates wear on the shaft seal and motor bearings.
Q: Is this impeller threaded or keyed onto the shaft?
Sta-Rite impellers in this class are typically threaded onto the motor shaft. Confirm the thread size against the original part, since it varies across pump lines even at the same horsepower.
Q: How do I know if my pump needs a new impeller?
Falling flow or pressure with the motor still running normally, a grinding or rattling noise, or visible chips and cracks in the old impeller are the usual signs. A pump that hums but moves no water at all can also mean a seized or badly damaged impeller.
Not sure this is the right part? Send us a Picture of the Pump Plate on your pump and the CLR Marine team will confirm the correct impeller.
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