Pentair Dura-Glas Impeller Assembly .75HP | C105-138PEBA
Pentair
SKU: C105-138PEBA
Pentair / Sta-Rite C105-138PEBA Closed-Face Impeller (3/4 HP Full-Rated / 1 HP Up-Rated, 2-Speed)
The Pentair / Sta-Rite C105-138PEBA is an OEM closed-face impeller designed for select Sta-Rite Dura-Glas and Max-E-Glas in-ground pool/spa pumps in 2-speed applications. This impeller is commonly identified as a 3/4 HP full-rated or 1 HP up-rated impeller, and it features a hole for an impeller screw (a key distinction from similar impellers that do not use an impeller screw).
Key Details
- Manufacturer: Pentair / Sta-Rite
- Part Number: C105-138PEBA
- Impeller Style: Closed-face
- Horsepower Rating: 3/4 HP full-rated or 1 HP up-rated (application-dependent)
- Speed: 2-speed pump applications
- Vane Count: 6 vanes
- Impeller Screw: Includes/uses an impeller screw hole (verify your pump’s screw requirement)
- Color: Commonly light tan or black (varies by production run)
Common Pump Applications
- Sta-Rite Dura-Glas in-ground pump models that specify C105-138PEBA in the parts breakdown
- Sta-Rite Max-E-Glas in-ground pump models that specify C105-138PEBA in the parts breakdown
- Commonly listed with pump model references such as P2R52D3-181 and P2R5D3-181 (and related variants), where the impeller is specified for the configuration
What This Part Does
- Transfers motor power to moving water through the pump volute to produce flow and pressure.
- Works with the diffuser to shape water movement for efficient circulation.
- Restores performance when the original impeller is cracked, worn, or debris-damaged.
When to Replace the Impeller
- Reduced flow/pressure after the basket and plumbing are confirmed clear
- Cracked hub, damaged vanes, or worn impeller eye
- Impeller stripped on the shaft or seized from debris
- Repeated loss of prime or unusual noise traced to wet-end damage
Installation Notes
- Disconnect power at the breaker and relieve system pressure before opening the pump.
- Match the impeller to your pump’s exact model and motor/HP configuration to ensure proper performance.
- If your setup uses an impeller screw, confirm the screw is present and in good condition during reassembly.
- Replace the mechanical shaft seal whenever the impeller is removed to help prevent leaks into the motor.
- Inspect the diffuser and volute for scoring or cracks that can reduce performance or cause repeat issues.
Related Products (Aqua Pool Supply)
- Sta-Rite Dura-Glas diffusers
- Sta-Rite Max-E-Glas diffusers
- Sta-Rite Dura-Glas seal kits
- Sta-Rite Max-E-Glas seal kits
- Sta-Rite pump lid O-rings
Maintenance Tip
Most impeller damage starts with debris bypassing the basket or from running the pump with restricted suction. Keep the pump basket clean, maintain proper water level, and address suction leaks early to help protect the impeller, diffuser, and shaft seal.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
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