Moen 104021 Solenoid Valve Repair Kit 8301 8303 8304

Product Description

The MOEN 104021 is a solenoid valve repair kit designed to restore proper function to MOEN solenoid valve assemblies. Solenoid valves control water flow in automatic and sensor-operated faucet systems by opening and closing an internal valve via an electromagnetic coil. Over time, internal seals, diaphragms, and small components wear or foul, causing slow response, leaking, or complete valve failure. This repair kit provides the replacement components needed to bring the valve back to operating condition without replacing the entire assembly. Licensed plumbers and experienced service technicians are the primary installers for this type of repair.

This kit is intended for use in commercial and residential plumbing applications where MOEN solenoid valve assemblies are installed. It is commonly used during routine maintenance or when troubleshooting a sensor faucet that fails to open or close reliably. The kit covers repairs for MOEN valve models 8301, 8303, and 8304, making it a practical stocking item for plumbing professionals who service MOEN electronic faucet systems.

Key Features

• Provides internal repair components for MOEN solenoid valve assemblies
• Compatible with MOEN valve models 8301, 8303, and 8304
• Restores valve sealing and actuation performance without full assembly replacement
• OEM-style fit for accurate, reliable repair

Compatibility

Compatible with MOEN solenoid valve models 8301, 8303, and 8304 as stated by the manufacturer.

Installation Notes

Installation should be performed by a licensed plumber or qualified service technician. Before beginning any repair, shut off the water supply to the fixture and relieve line pressure. Follow all applicable local plumbing codes during disassembly and reassembly of the solenoid valve. Inspect the valve body for damage or mineral buildup before installing the new repair components.

Technical Specifications

• UPC: 026508189344

Standard Information

• Brand: MOEN
• Manufacturer Part Number: 104021