Part # 5110-23A
Manufacturer Code SPX3021R
Dimensions 2.75" L x 2.75" W x 0.5" D
Hayward® Impeller Ring Replacement – SPX3021R
For Select 2 HP – 3 HP Pumps
Genuine Hayward® OEM impeller ring for high-horsepower pool pumps. Maintains proper clearance between the impeller and diffuser to maximize efficiency and extend pump life.
Why this part?
✅ Restores pump performance by reducing bypass flow around the impeller
✅ Exact OEM fit — molded with part number SP3021R for easy identification
✅ Durable material withstands wear from sand, debris, and chemicals
✅ Used across multiple Hayward® pump lines and select private-label models
Compatibility
✅ Fits Hayward® pump models:
• NorthStar®
• Super II®
• TriStar® (all models)
• EcoStar® (residential & commercial)
• Hydromax® II (Leslie’s private label)
➜ Horsepower range: 2 HP – 3 HP
➜ For 3/4 HP – 2 HP pumps, use SPX3005R instead
⚠️ Using the wrong impeller ring size can cause reduced performance or damage — confirm by part number and HP rating before ordering.
Specs
Outer Diameter: 2 3/4"
Inner Diameter: 2 3/16"
Height: 3/4"
Molded Part Number: SP3021R
What’s included
(1) ✅ OEM impeller ring – SP3021R
Install notes
➜ Shut off power and relieve pressure before servicing pump
➜ Remove diffuser, press-fit new impeller ring into recess
➜ Inspect impeller, diffuser, and shaft seal while open
⚠️ Do not operate pump without an impeller ring — efficiency and water flow will be compromised.
What does the impeller ring do? Do I need it?
Reply
Richard, The impeller ring provides protection for the impeller and also acts as a seal in between the impeller and diffuser. If your pump has an impeller ring, it is recommended that you continue to use it.
Reply
New wear ring is loose on my existing impeller and loose in new diffuser. Shouldn't it be snug on one or the other to keep it from spinning around?
Reply
Robert, The wear ring will not fit tight on the impeller. When installed, the wear ring should be able to move freely.
Reply
The pump is very noise at high speed. I have a ecostar pump. less noise at a lower speed. is there a bearing that would make the noise or impeller or what?
Reply
Hi, Craig. Noisy motors are usually caused by bad bearings. An impeller ring or impeller would not cause the pump to become noisy.
Reply
we open pump to replaced motor and we realized this impeller ring is missing. Is it necessarily we need to replace it?
Thanks
Reply
Hi Dante, could you send us a few photos of your pump and motor? Not all pool pumps have an impeller ring. Please take a close up shot of the motor label as well as a wide shot of the complete pump to include the pipes going in and out of the pump. To supply photos simply click the reply link below and upload your photos. Once we get those photos we can make the proper recommendation.
Reply
The Most Helpful Review
4 0
(5 out of 5 stars) Exact replacement
Reviewed By: pukhed from Marco Island ()
Pros: Fits
Cons: None
Easy to replace. Just make sure the larger end goes toward the diffuser.
Was this review helpful to you?
The Most Recent Reviews
(5 out of 5 stars)
Reviewed By: Inyo Customer ()
Perfect fit.
Was this review helpful to you?
(5 out of 5 stars)
Reviewed By: Inyo Customer ()
Great pricing....Fast delivery...
Was this review helpful to you?
(5 out of 5 stars)
Reviewed By: Inyo Customer ()
Helped remove the noise I had coming from pump
Was this review helpful to you?
(5 out of 5 stars) No problem installing ring. Pump runs great now.
Reviewed By: Inyo Customer ()
Perfect fit in every way.
Was this review helpful to you?
(5 out of 5 stars) Really Helped My Old System
Reviewed By: Inyo Customer ()
Really helped my old system
Was this review helpful to you?
(5 out of 5 stars) All Repairs Myself with Inyo Pools
Reviewed By: Inyo Customer ()
The pool service man left this ring off when he replaced my motor last time. I do all repairs myself now with Inyo Pools.
Was this review helpful to you?
1 0
(5 out of 5 stars) perfect fit and quick arrival.
Reviewed By: Inyo Customer ()
this is the ring that goes on the impeller inside the pump, I replaced it as part of a rebuild and motor upgrade. Perfect fit, just remember that it goes wide side out (see the diagram and videos online) other than that, pretty easy to do and about 1/2 what the local pool store wanted for the same item.
Was this review helpful to you?