Commercial Washer Water Inlet Valve For: Dexter K-78665 9379-183-012 ERK-78665

ERP K-78665 Commercial Washer Water Inlet Valve

This ERP replacement mixing-water inlet valve is intended for compatible Dexter commercial laundry washers. Robertshaw identifies K-78665 as the replacement for Dexter 9379-183-012. Confirm the complete washer model, coil voltage, inlet and outlet connections, mounting, and original valve configuration before ordering. No unverified voltage or flow rating is claimed here.

Compatible Part Numbers

• K-78665
• 9379-183-012
• ERK-78665

Key Features

• Commercial washer mixing-water inlet valve replacement.
• Verified application reference: Dexter.
• Robertshaw product/application documentation identifies the K-78665 and 9379-183-012 pairing.
• Confirm coil voltage, fittings, inlet/outlet arrangement, mounting, and water connections against the original valve and model-specific service documentation.

Fixes These Symptoms

• Washer does not fill when commanded.
• Washer fills slowly after water supply and hoses are confirmed.
• Incorrect water mixing or fill behavior after controls and supply are tested.
• Valve leaks or does not shut off after the electrical control and plumbing are confirmed.
• Intermittent filling caused by a confirmed defective inlet valve.

These symptoms may also be caused by supply valves, screens, hoses, pressure, wiring, control boards, timers, or other washer components. Diagnose the washer before replacing the valve.

Compatible Models

Fits various models. Please verify compatibility with us before ordering. Dexter application compatibility does not guarantee fitment to every washer model.

Compatible Brands

Dexter.

Installation Guidance

1. Disconnect washer power and shut off the water supply before service.
2. Relieve water pressure and prepare for residual water before disconnecting hoses.
3. Record the original valve wiring, coil arrangement, hose locations, fittings, outlet direction, mounting, and hardware before removal.
4. Confirm the replacement coil voltage, inlet/outlet connections, mounting, and complete washer model against the original and the service manual.
5. Use compatible seals and approved connections. Route wiring away from water, moving parts, and hot surfaces.
6. Restore water slowly, inspect every disturbed connection for leaks, and confirm proper filling, mixing, and shutoff before returning the washer to use.
7. Use a qualified commercial-laundry technician when electrical, plumbing, or compatibility requirements are uncertain.

ERP replacement part. Confirm the full appliance model and original part number before ordering.

Manufacturer product/application reference