.xp{font-family:Arial,Helvetica,sans-serif;color:#1b1b1b;line-height:1.5;max-width:1100px;margin:auto}.xp *{box-sizing:border-box}.xp .hero{position:relative;overflow:hidden;border-radius:12px;padding:22px 28px;margin-bottom:18px;color:#fff;background:#111;isolation:isolate}.xp .hero:before{content:"";position:absolute;inset:0;z-index:-2;background:url('https://cdn.shopify.com/s/files/1/0897/7783/2225/files/4444444444444444.png?v=1777040489') center/cover no-repeat}.xp .hero:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(135deg,rgba(0,0,0,.86) 55%,rgba(0,0,0,.45))}.xp .label{display:inline-block;background:#e60000;color:#fff;font-weight:800;font-size:11px;letter-spacing:.05em;padding:6px 10px;border-radius:20px;margin-bottom:9px}.xp .hero h2{font-size:clamp(22px,3vw,34px);line-height:1.1;margin:0 0 8px;color:#fff!important}.xp .hero p{margin:0;color:#fff!important}.xp .specs{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}.xp .specs span{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);padding:5px 8px;border-radius:7px;font-size:12px;font-weight:700;color:#fff!important}.xp h2{font-size:27px;margin:28px 0 10px;color:#111}.xp .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;margin:16px 0}.xp .card{border:1px solid #ddd;border-radius:10px;padding:16px;background:#fff}.xp .card strong{display:block;color:#e60000;margin-bottom:3px}.xp ul,.xp ol{padding-left:22px}.xp li{margin:6px 0}.xp .tip{border-left:5px solid #e60000;background:#f6f6f6;padding:16px 18px;border-radius:9px;margin:22px 0}.xp .note{font-size:14px;color:#444;background:#fafafa;border:1px solid #e5e5e5;border-radius:9px;padding:14px;margin-bottom:24px}@media(max-width:640px){.xp .hero{padding:19px}.xp .hero h2{font-size:24px}.xp h2{font-size:24px}} GENUINE OEM REPLACEMENT PART Sub-Zero Refrigerator Refrigerator Parts and Accessory 4200520, Replaces SZ4200520 The 4200520 (also referenced as SZ4200520) is the OEM Sub-Zero refrigerator ice maker assembly. This unit has been discontinued by the manufacturer and is no longer available through OEM channels. Please contact us to discuss available alternatives. Part 4200520 Replaces SZ4200520 Is This the Right Part? Part Number4200520 ReplacesSZ4200520 ManufacturerSub-Zero Appliance TypeRefrigerator Confirm the complete model number before ordering. Similar parts may use different connectors, dimensions, hose positions, electrical ratings, or mounting points. Ice maker not producing ice Ice maker stopped cycling after a period of normal operation Ice cubes coming out misshapen, hollow, or undersized Water overflowing from the ice mold into the freezer Ice maker harvest arm stuck or not moving OEM Sub-Zero part number: 4200520 / SZ4200520 Status: Discontinued — No Longer Available (NLA) Complete ice maker assembly — includes mold, harvest motor, thermostat, and control module Disconnect power to the refrigerator before beginning. Shut off the water supply valve to the refrigerator. Open the freezer and locate the ice maker mounted to the freezer wall. Disconnect the wiring harness connector and the water supply line from the existing ice maker. Remove the mounting screws and pull the old ice maker free from the bracket. Mount the replacement assembly to the bracket, reconnect the wiring harness and water supply line. Restore water and power, then allow 24 hours for the ice maker to complete its first full harvest cycle. Part Details Part TypeRefrigerator Parts and Accessory ConditionOEM Use a qualified technician when diagnosis or installation is outside your experience. Gas parts should be installed by a licensed technician.