New Aftermarket Starter Roller Drive Sprocket. Sprocket has 20 teeth and 1.504" hex bore diameter. Used on 60 chain. Compatible with John Deere round balers models: 330, 335, 375, 385, 430, 530, 435, 535, 540, 545, 550
Bore - 1.504"
Bore Type - Hex
Chain Size - 60
Teeth - 20
Replaces AE39650
OEM# for reference only