Part 97-SENL7 | Dose Spreader Box Extension Kit | 97-SENL7 - Maximize your spreader with stainless steel extensions for the John Deere NL7. Built with 304 stainless steel, these 8” extensions increase your capacity by ~25%, the Spreader Box Extension Kit allows your operation to be more efficient by covering more acres per day! Each extension comes with pre-drilled OEM tarp ready holes, making it easy to install roll tarps* and run camera cables quickly and hassle-free. Each extension kit includes necessary stainless steel installation hardware. Compatible with John Deere NL7 dry spinner spreaders only.