Dometic 385312090 Toilet Water Valve Module – 12V Replacement Water Valve for Dometic 7640 MasterFlush Toilets

Restore Proper Water Flow to Your Dometic MasterFlush Toilet

The Dometic 385312090 Water Valve Module is a genuine OEM replacement water valve assembly designed for Dometic 7640 MasterFlush toilets and other compatible 7600 Series MasterFlush systems. This 12-volt water valve controls the flow of fresh water into the toilet bowl during the flush cycle and is a critical component of proper toilet operation.

If your Dometic MasterFlush toilet is not filling properly, fills intermittently, leaks water, or fails to deliver water during the flush cycle, a faulty water valve may be the cause. Replacing the water valve module can restore proper flushing performance and eliminate water flow issues without replacing the entire toilet.

Designed to meet original Dometic specifications, the 385312090 provides reliable operation and direct-fit compatibility for Dometic 7600 Series MasterFlush toilet systems.

Common Problems This Part Fixes

• Toilet will not add water to the bowl
• Weak water flow during flushing
• Toilet fills intermittently
• Water valve not opening during flush cycle
• Toilet flushes but does not refill properly
• Water leaks from the valve assembly
• Inconsistent bowl water levels
• Failed or sticking water valve

Features & Benefits

• Genuine Dometic OEM replacement part
• Direct replacement water valve module
• Restores proper bowl fill operation
• Ensures correct water flow during flush cycles
• Designed specifically for Dometic MasterFlush toilets
• Factory-correct fit and electrical compatibility
• Helps restore reliable toilet performance
• Built to original Dometic specifications
• 12 Volt DC operation

Specifications

• Manufacturer: Dometic
• Part Number: 385312090
• Product Type: Toilet Water Valve Module
• Application: MasterFlush Toilet Water Supply Control
• Voltage: 12 Volt DC
• Series: MasterFlush 7600 Series
• OEM Replacement: Yes
• Quantity: Single
• Includes: Water Valve Assembly and Mounting Screws

Fits These Dometic Toilet Models

Compatible with:

• Dometic 7640 MasterFlush Toilet
• Dometic 7600 Series MasterFlush Toilets

Please verify your toilet model before ordering.

Why Replace the Water Valve Module?

The water valve controls the flow of fresh water into the toilet bowl during each flush cycle. Over time, mineral buildup, debris, normal wear, or electrical failure can prevent the valve from operating correctly.

Common signs of a failing water valve include:

• No water entering the bowl
• Slow bowl fill
• Incomplete flush cycles
• Water leaking around the valve assembly
• Intermittent operation

Replacing the valve can often restore proper toilet function quickly and affordably.

Genuine Dometic OEM Quality

Unlike aftermarket alternatives, the Dometic 385312090 is engineered specifically for MasterFlush toilet systems to provide:

• Exact OEM fitment
• Proper water flow characteristics
• Reliable electrical operation
• Long service life
• Factory-original performance

Frequently Asked Questions

What does the water valve module do?

The water valve module controls the flow of fresh water into the toilet bowl during the flush cycle.

What are signs of a bad water valve?

Common symptoms include no water entering the bowl, slow filling, intermittent operation, leaks, or incomplete flush cycles.

Is this a genuine Dometic part?

Yes. The 385312090 is a genuine OEM Dometic replacement water valve assembly.

Will this fit my Dometic 7640 toilet?

Yes. This valve is designed for the Dometic 7640 MasterFlush toilet and compatible 7600 Series systems.

Does this include mounting hardware?

Yes. The assembly includes mounting screws.

What's Included

• Dometic 385312090 Water Valve Module
• Mounting Screws
• Genuine OEM Dometic Replacement Component