Dometic Concerto 4300 Toilet Rocker Switch | 385311290 | Black

Restore reliable flush operation to your Dometic Concerto 4300 RV toilet with the Dometic 385311290 Replacement Rocker Switch. This genuine Dometic OEM replacement is the electrical switch that activates flush operation on the 4300 Concerto model — the right replacement when your existing switch has failed, become unresponsive, or shows physical damage.

For Dometic Concerto Model 4300

The 385311290 is specifically designed for the Dometic Concerto Model 4300 RV toilet. Verify your existing toilet model on the manufacturer label before ordering — Dometic toilet electrical components are not interchangeable across all toilet model lines.

What This Switch Does

The rocker switch is the user-facing control that activates the flush cycle on the electric Concerto 4300 toilet. When pressed, it sends the signal that triggers the toilet's flush sequence — making it one of the most-used components on the entire toilet over its service life.

Common Failure Symptoms

Common reasons to replace the rocker switch include:

• Switch is unresponsive when pressed — no flush activation
• Intermittent operation — works sometimes, doesn't other times
• Switch feels loose, sticky, or stuck
• Visible physical damage — cracks, broken rocker, or wear
• Continuity testing shows failure in the switch contacts
• Switch stays activated after release

Before assuming the switch has failed, rule out simpler issues — wiring connections, power supply, fuses — since these can mimic switch failure symptoms.

Black Finish

The 385311290 features a black finish — matching the standard Concerto 4300 control surface aesthetic.

Mounting Hardware Included

The 385311290 ships with everything needed for installation:

• (2) Mounting screws
• Approximately 20" wire lead

Dimensions for Fitment Verification

• Switch plate: 1-7/8" L × 1/2" W
• Wire lead length: Approximately 20"

⚠️ Professional Installation Recommended

Toilet electrical component replacement involves working with the toilet's 12V DC wiring. Installation should be performed by a qualified RV service technician — particularly to ensure proper wire termination and avoid wiring faults that could damage other toilet electrical components.

Pairs Well with Other Concerto Service Parts

If you're servicing a Concerto Series toilet and the seat also needs attention, see the Dometic 4471011615 / 385312205 Concerto Slow-Close Toilet Seat — bone color, fits Concerto Series and 8700 Series toilets. Common simultaneous-service item during broader Concerto toilet refresh.

Genuine Dometic OEM Replacement

As a Dometic factory replacement part, the 385311290 is built to original specifications for a precise drop-in fit on compatible Concerto 4300 toilet installations.

Key Features

• Genuine Dometic OEM rocker switch
• For Dometic Concerto Model 4300 RV toilet
• Black finish
• Includes 2 mounting screws
• Approximately 20" wire lead
• Switch plate dimensions: 1-7/8" L × 1/2" W

What's Included

• (1) Rocker switch with approximately 20" wire lead
• (2) Mounting screws

Specifications

• Brand: Dometic
• Part Number: 385311290
• Type: Replacement Rocker Switch
• Compatible Models: Dometic Concerto Model 4300
• Color: Black
• Switch Plate Dimensions: 1-7/8" L × 1/2" W
• Wire Lead Length: Approximately 20"
• Mounting Hardware: (2) Screws included