The #1 Aftermarket
John Deere Concave
System. Guaranteed.

We Don’t Set The Bar. We ARE The Bar In Aftermarket Concaves.

Our John Deere concave system is the gold standard that all other concave systems measure up to. Quite simply, we’re the best there is. Our aftermarket John Deere concave system puts an end to rotor loss, so none of that hard-fought-for harvest is lost out the back. Round bars are great in that they don’t easily plug but they fail when it comes to threshing small grains. Not ours. Our concave bar thresh all crops, even the smallest of grains, exceptionally and without causing damage to grain. In short, our aftermarket concaves work for ALL crops, STOP grain loss, INCREASE capacity, LESS grain damage, CLEANER sample, all while harvesting FASTER. None Outperform — Guaranteed.

See Why So Many Farmers Choose Us.

Farmers worldwide, from Mexico to New Zealand have chosen Estes Performance Concaves. We are the #1 aftermarket concaves for John Deere and Case IH combines. Guaranteed or your money back. That said, it’s not enough for us to rest on past accomplishments. Every day we push forward and are dedicated to bring you the best threshing and separating systems and technologies. We are proud to be a private, family operation and it’s the thousands of thank you calls and emails that fuel us.

Industry Leading, Superior Technology. From The Start.

Years of talking with farmers, research and development have gone into producing the best aftermarket concaves for John Deere and Case IH combines. Our aftermarket John Deere concave system is the culmination of many engineers years of experience and listening to customers. Our latest aftermarket concave system is our best concave system yet. Our concave bars have been optimized to give you the best possible threshing action for all crops. Our new and improved cover plates give you unmatched flexibility when tuning your concaves to a desired crop. We have increased capacity with our concave spacing and separation grates that release and capture grain more effectively than ever before.

Bottom Line
Your Combine Won’t Find Better ROI