Parts for Sub-Zero 4-20-052-0: Icemaker Parts

This icemaker fill cup and bearing assembly directs water from the inlet tube into the ice mold and provides the pivot point for the shutoff arm. Replacing a cracked or missing cup helps stop leaks, misdirected fills, and inconsistent ice production.

• Channels incoming water into the ice mold to prevent splashing and overfilling
• Provides the pivot/bearing for the ice level (shutoff) arm
• Helps maintain consistent cube size and reliable icemaker shutoff
• Typical symptoms: water or ice buildup under the icemaker, overfilling or hollow/irregular cubes, or a loose/binding shutoff arm

• Unplug the refrigerator and shut off the water supply before servicing
• Remove the ice bin and detach the icemaker to access the side-mounted cup
• Position the new cup directly under the fill tube; secure with existing hardware and verify the shutoff arm pivots freely in the bearing
• Restore power and water; run a test fill and check for leaks