A pump coupling wears out so the shafts, bearings, and seals on both sides of it do not. When yours starts chattering, shedding rubber, or running hot, replacing it is the cheapest repair on the whole drive line.
Elite Manufacturing Systems stocks two coupling styles for Cornell and Pioneer pump drives: the ACT series of jaw couplings, from the ACT 1.3 to the ACT 7, and Dodge tire-style couplers, plus replacement flexible elements. Call it a pump coupler or a pump coupling; the trade uses both words for the same part, and both are here. Every one is a compatible or improved aftermarket component, not OEM.
These couplings serve the pump motor coupling and engine-drive connections on agricultural irrigation, municipal water, oilfield, and manufacturing equipment across the United States and Canada.
Jaw or Tire: Two Coupling Styles, One Job
Both styles connect the drive to the pump and forgive what rigid shafts cannot.
- ACT jaw couplings: two metal hubs with interlocking jaws and a flexible insert between them. Compact and precise, the standard fit across most of the drive range.
- Dodge tire-style couplers: a rubber tire section flexing between two hubs. The most forgiving style for minor misalignment and shock loads.
Both styles wear at the rubber, by design. Replacement elements are stocked separately, so a worn insert costs you an element, not a whole coupling.
Match the Coupling to Your Drive
Coupling sizing follows the drive, not the guesswork: the pump model plus both shaft diameters set the size.
| Style | In Stock | Price Range | Best When |
|---|---|---|---|
| ACT jaw couplings | ACT 1.3 through ACT 7, including WN, NN, EN, and F2-with-hub variants | $539.50 to $5,330 | Standard drive connections where alignment is good and space is tight |
| Dodge tire-style couplers | Multiple sizes | $494 to $2,069 | Drives that see shock loads, vibration, or minor misalignment |
| Replacement elements | Flexible elements for stocked couplings | From $617.50 | The hubs are sound and only the rubber is worn |
Send the pump model, both shaft diameters, and a photo of the old coupling, and we will confirm the size before you order.
Prices from the Elite Manufacturing Systems catalog as of July 2026 and subject to change. Current pricing is always in the catalog above.
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 Coupling Questions, Answered
The pump coupling types used on Cornell and Pioneer drives are jaw couplings, where two metal hubs with interlocking jaws grip a flexible insert, and tire-style couplings, where a rubber tire section flexes between the hubs. Other industrial styles exist, like grid and disc couplings, but jaw and tire styles cover these pump drives. Elite Manufacturing Systems stocks both: the ACT jaw series and Dodge tire-style couplers, plus their replacement elements.
Yes, a pump coupler and a pump coupling are the same part; the trade uses both words interchangeably for the flexible connector between a pump and its motor or engine. Whichever word you search or say on the phone, Elite Manufacturing Systems stocks the part: ACT jaw couplings and Dodge tire-style couplers for Cornell and Pioneer pump drives.
If the metal hubs are undamaged and only the rubber is worn, replace just the element: the flexible insert or tire section is designed to be the wear part, and elements are stocked from $617.50. Replace the whole coupling when the jaws or hubs show wear, cracking, or bore damage, since worn metal will eat a new element quickly. Text a photo of your coupling to (337) 564-6428 and the team will tell you which repair you are looking at.
To size a pump motor coupling, you need three things: the pump model, the pump shaft diameter, and the motor or engine shaft diameter. The coupling series and size follow from those, and the old coupling's markings (like ACT 4.0) confirm the match. Send all three details to Elite Manufacturing Systems by phone, email, or text and the team will size it before you order.
These are aftermarket-supplied couplings. Elite Manufacturing Systems is an independent aftermarket supplier, and the ACT and Dodge couplings it stocks are compatible with Cornell and Pioneer pump drives, typically priced about 30% below OEM channels. Most items carry a manufacturer defect warranty, and issues are handled case by case.
To confirm a coupling fits your pump, send Elite Manufacturing Systems the pump model, both shaft diameters, and the markings on the old coupling before you order. Call (337) 564-6428, email Chad@elitemanufacturingsystems.com, or text a photo of the coupling. The team verifies the match and points you to the exact part in the catalog.