Primary Drive Clutch AM138530 for John Deere XUV 850D Gator. Part Name: Primary Drive Clutch. Manufacturing Part Number: AM138530. Application: Compatible with John Deere XUV 850D Gator. UPS Surepost usually takes 1-6 workdays. UPS GROUND usually takes 1-5 workdays. All these transport timeliness Don’t apply to remote districts. Please make sure it is correct. We will do our best to offer you satisfied resolutions. Please keep patient because you and us may have time difference, any issue will be solved via friendly communcation. This is normal condition, but sometimes the transport may be beyond our control and take longer time. Thanks for your understanding and cooperation.