This is a A-AH207851 Concave, Middle/ Rear, High Wear (Small Grain) PN: AH207851Main Description As Following : A-AH207851 Concave, Middle/ Rear; High Wear (Small Grain) P.N: AH207851 Type: High Wear, Small Grain Crossed From: AV103693 VAPORMATIC , AXE28961 JOHN DEERE , 300-D207851 , , 300D207851 , Found in Section & Models : Threshing Area > Concaves, John Deere COMBINE: S650, John Deere COMBINE: S660, John Deere COMBINE: S670, John Deere COMBINE: S680, John Deere COMBINE: S690, John Deere COMBINE: S760, John Deere COMBINE: S770, John Deere COMBINE: S780, John Deere COMBINE: S790, John Deere COMBINE: 9650STS, John Deere COMBINE: 9660STS, John Deere COMBINE: 9670STS, John Deere COMBINE: 9750STS, John Deere COMBINE: 9760STS, John Deere COMBINE: 9770STS, John Deere COMBINE: 9860STS, John Deere COMBINE: 9870STS Associated Items : New Also This is An Aftermarket Product And : Type: High Wear, Small Grain