A centrifugal pump impeller does all the real work in the pump, and it is the first thing erosion and cavitation attack. Replace a worn one without OEM pricing or the OEM wait.
Elite Manufacturing Systems stocks stainless steel impellers machined to fit specific Cornell and Pioneer pump models, from the Cornell 4NNT to the Pioneer 10x8 S17. Every one is a compatible or improved aftermarket component, not OEM, which typically saves about 30% versus OEM pricing.
These are industrial impellers for the centrifugal pumps used in agricultural irrigation, municipal water, oilfield, and manufacturing operations across the United States and Canada. They are not outboard, marine, pool, or automotive water pump impellers.
Signs You Need a Pump Impeller Replacement
Most impellers fail slowly, and the pump tells you. Watch for:
- Flow or pressure that keeps dropping at the same RPM
- Longer priming times, or prime lost under load
- A rattling, gravel-like sound: cavitation eating the vanes
- Pitting, thinning, or broken vane edges at inspection
If two or more of these sound familiar, it is time for a pump impeller replacement. On centrifugal units, a water pump impeller replacement costs far less than the fuel and hours a worn impeller burns.
Stainless Impellers by Pump Model
Every impeller below is machined for its specific pump model: straight centrifugal pump impellers in stainless steel, matched to the pump they serve.
| Pump Brand | Models With Stainless Impellers in Stock |
|---|---|
| Cornell | 4NNT, 6NNT, 6x3 3HC, 6612T, 6NHTA (12-inch and 14-inch), 8NHTA |
| Pioneer | 4x4 S10, 6x3 C17, 6x6 S12, 6x6 S14, 8x8 S12, 10x8 S17 |
Impeller material matters most in dirty water. Stainless steel stands up to the abrasion and corrosion that wear down softer impellers in irrigation, municipal, and oilfield service, which is why every impeller pump replacement in the catalog is stainless.
Model availability as of July 2026. If your model is not listed, call and the team will check.
Get Parts From Louisiana or West Texas
Order in-stock parts before 12pm Central and they ship the same day from Lake Charles, Louisiana, with UPS Red next-day air available on request. Need it in hand today? Pick up at the Lake Charles headquarters or at the Midland, Texas distribution center.
Pump Impeller Questions, Answered
The three broad pump impeller types are closed impellers with shrouds on both sides of the vanes, semi-open impellers with a shroud on one side, and open impellers with exposed vanes. The type is set by the pump's design, so a replacement must match the original. Elite Manufacturing Systems stocks stainless impellers machined to match specific Cornell and Pioneer models, so the type is always correct for the pump.
Centrifugal pump impeller sizing comes down to two things: the pump model and the impeller diameter. Both usually appear on the pump's nameplate, and the diameter can also be measured from the old impeller. Some models take more than one size, like the Cornell 6NHTA, which runs either a 12-inch or a 14-inch impeller. If anything is unclear, send the serial number to Elite Manufacturing Systems and the team will confirm the size before you order.
No, you do not need an impeller pump diagram to order a replacement. Impellers in the catalog are listed by pump model, so the model number takes you to the right impeller. If the nameplate is gone, text a photo of the pump and the old impeller to (337) 564-6428 and the team will identify it.
No, these impellers do not fit outboard motors or automotive water pumps. They are stainless steel water pump impeller replacements for the industrial centrifugal pumps made by Cornell and Pioneer. They do not fit marine raw water pumps, pool pumps, or automotive cooling systems.
No, these are not OEM impellers. Elite Manufacturing Systems supplies compatible or improved aftermarket impellers designed to fit Cornell and Pioneer pumps, typically priced about 30% below OEM. Most items carry a manufacturer defect warranty, and issues are handled case by case.
To confirm an impeller fits your pump, send Elite Manufacturing Systems the pump's serial number or model number before you order. Call (337) 564-6428, email Chad@elitemanufacturingsystems.com, or text a photo of the nameplate or the old impeller. The team verifies the match and points you to the exact impeller in the catalog.