Mad Mechanics - Kennewick Categories Mechanical Repair - GeneralTransmission Repair 6205 W Okanogan Ave #110 Kennewick WA 99336 (509) 783-3211 Send Email Visit Website Rep/Contact Info Jay Fenningsdorf × Jay Fenningsdorf Owner Phone: (509) 783-3211 6205 W Okanogan Ave #110 Kennewick WA 99336 Share × Print Email Facebook Twitter LinkedIn Tell a Friend ×