When a project needs servo stepper motion control, the challenge is often finding a matched drive and motor that work together without a hefty investment. Buying a used industrial bundle can be a practical answer, but you need to weigh the condition and compatibility risks.
Quick Verdict
If you're comfortable with used automation hardware, the Parker 6104 Indexer Drive and Stepper Motor is a concrete option at $300. The listing includes both the Zeta Drive and Compumotor Zeta Motor, and the seller says it was working when removed from a retired machine. A power cable is included, so you can get started without hunting for that extra part.
Parker 6104 Indexer Drive and Stepper Motor

This bundle pairs the Parker 6104 Zeta Drive with a Compumotor Zeta Motor, giving you a matched indexer and stepper motor set. The drive-and-motor combo is often the tricky part of a motion control build, and having the two together saves you from guessing which motor profiles the drive supports. The price is a straightforward $300, and the unit ships from the U.S. It's described as having been in working condition when it was pulled from a retired machine, but it has been sitting for about a year, so it's fair to treat it as a used component that may need a quick bench test before installation. The main reason to choose this bundle is the convenience of getting a matched drive and motor in one purchase. The limitation is that it's used and has sat idle for a year, so you're betting on the seller's description rather than a fresh-off-the-line product.
Who It Suits
This setup suits a hobbyist or technician working on a bench test, a small automation build, or a retrofit where the original controller is being replaced. It's a good fit for someone who wants a Parker/Compumotor combination and is willing to buy used to keep the project budget in check.
Meaningful Trade-offs
What you see is what you get: the listing covers the drive, motor, and a power cable, but the overall focus is on the hardware itself. You'll need to think about whether you have the rest of the setup to put it to work, such as the controller, wiring, and any software you might need. Also, because it's a used item from a retired machine, there's no indication of how much life is left in it, so it's wise to be prepared for possible quirks that can come with older industrial gear.
Bottom Line
If you need a matched indexer drive and stepper motor and you're okay with buying used, the Parker 6104 at $300 is a practical choice. The bundle gives you the core components, and the seller's description suggests it was functional when pulled. Just be ready to test it once it arrives and have the rest of your motion control setup in place.