Home / Recreation / Elliptical Arc Washer 7820-37 Elliptical Arc Washer 7820-37Price Not Available Price may not be up-to-date. Out of Stock View Product Part Number: 7820-37 Brand: BODY FLEX SPORTS Seller: Sears PartsDirect Category: Recreation Possible Matches$39.99HD Switch -3 Pack- Deck Spindle Blade Bolt 781872 & 782474 Bellevil... Description This arc washer (part number 7820-37) is for ellipticals. Unplug the elliptical before installing this part. Wear work gloves to protect your hands.