The John Deere AZ40077 is a genuine OEM belt set designed for various John Deere agricultural machinery. This essential component ensures optimal power transmission and reliable operation across compatible models, including a wide range of combines (9400, 9410, 9450, 9500, 9500SH, 9510, 9510SH, 9550, 9550SH, 9560, 9560STS, 9560SH, 9570STS, 9600, 9610, 9650, 9650CTS, 9650STS, 9660, 9660CTS, 9660STS, 9670STS, 9750STS, 9760STS, 9770STS, 9860STS, 9870STS, S550, S650, S660, S670, S670HM, S680, S680HM, S690, S690HM, S760, S770, S780, S785, S790, T550, T560, T660, T670, W540, W550, W650, W660), cotton pickers (9970, 9976, 9986, 9996), forage harvesters (7180, 7200, 7250, 7280, 7300, 7350, 7380, 7400, 7450, 7480, 7500, 7550, 7580, 7700, 7750, 7780, 7800, 7850, 7950, 7980, 8100, 8200, 8300, 8400, 8500, 8600, 8700, 8800), and windrowers (4890, 4895, 4990, 4995). This belt set maintains the performance and longevity of your equipment.