Craftsman Tiller Side Shield 786-0090A-0691 Genuine OEM Replacement Fits Craftsman MTD. This is a Genuine OEM Craftsman part. This side shield (part number 786-0090A-0691) is for tillers. Side shield 786-0090A-0691 is adjustable for different tilling depths, helping to maintain even rows when tilling. Wear work gloves to protect your ha... - Craftsman Tiller Side Shield 786-0090A-0691 Genuine OEM Replacement Fits Craftsman MTD.