6638-K882-V001Description 6638 SDM Upgrade Kit (Refurbished) $1,500.00 Quantity discounts available QuantityPrice Quantity -+ Add to Cart Detailed Description 6638 SDM Upgrade Kit. -- The 6638 SDM Upgrade Kit includes: Entire SDM, Infeed Assembly, LH Shutter, Brackets, and harnesses for "in field" installati... Detailed DescriptionBackDetailed Description6638 SDM Upgrade Kit. -- The 6638 SDM Upgrade Kit includes: Entire SDM, Infeed Assembly, LH Shutter, Brackets, and harnesses for "in field" installation.See MoreSee Less