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$54.99Crucial MX500 500GB 3D NAND SATA 2.5 Inch Internal SSD, up to 560MB... 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.