Dometic VacuFlush Flush Ball Kit | 385310954 | White | Brass Shaft

Restore reliable flush operation to your Dometic VacuFlush or compatible RV toilet with the Dometic 385310954 Flush Ball, Rotor Shaft, and Cartridge Kit in white. This genuine Dometic OEM replacement kit addresses the heart of the toilet's flush mechanism — the rotating ball assembly that opens during the flush cycle to send waste to the holding tank. This is the updated kit with a critical engineering upgrade: a brass rotor shaft instead of the older plastic version, dramatically improving durability and service life.

⚙️ Critical Update: Brass Shaft vs Old Plastic Shaft

The 385310954 is the updated replacement for the older 385310681 kit. The most meaningful difference is the rotor shaft material:

• 385310954 (this kit, updated): BRASS rotor shaft — significantly more durable, resists wear and corrosion in the constant moisture environment
• 385310681 (old, discontinued): Plastic rotor shaft — known to wear out over time

If your toilet originally shipped with the older 385310681 kit and you've been experiencing repeated flush mechanism failures, the brass shaft in this updated kit should provide meaningfully longer service life. This is a real, engineering-driven product improvement — not just a SKU change.

For Pedal-Flush VacuFlush Toilets with All-Plastic Pedal

The 385310954 is designed for:

• Pedal-flush VacuFlush toilets with all-plastic pedal mechanisms
• Any foot-operated toilet with a reinforced all-plastic pedal that uses this flush ball architecture

Verify your existing toilet's pedal style and flush mechanism before ordering — this kit is specifically for installations using the reinforced all-plastic pedal. If your toilet has a different pedal style (such as metal pedals or older mechanisms), the kit may not be compatible.

What This Kit Does

The flush ball assembly is the mechanical heart of pedal-flush toilet operation:

1. The flush ball rotates closed between flushes — sealing the bowl from the waste tank below
2. Pressing the pedal triggers the cartridge — which actuates the rotor shaft
3. The rotor shaft rotates the flush ball open — allowing waste to flow to the holding tank
4. After flush, the mechanism returns the ball to closed — re-sealing the bowl

When any of these components wear, fail, or seal poorly, you'll see symptoms ranging from incomplete flushes to ongoing odor issues to outright mechanism failure.

Common Failure Symptoms

Common reasons to replace the flush ball kit include:

• Flush ball won't open when pedal is pressed
• Flush ball won't close fully — incomplete sealing between flushes
• Persistent odor from the toilet due to poor flush ball seal
• Visible damage to the flush ball — cracks, warping, surface wear
• Rotor shaft is worn, bent, or broken — particularly common with the older plastic-shaft kit
• Cartridge mechanism feels stuck, weak, or non-responsive
• Leaking water from the flush mechanism area
• Pedal feels normal but flush doesn't activate properly

What's Included for Complete Mechanism Replacement

The kit replaces the complete flush mechanism in one go:

• (1) Flush ball — the rotating ball that opens/closes during flush
• (1) Rotor shaft — BRASS (updated material vs older plastic version)
• (1) Cartridge — the mechanism that translates pedal motion to flush ball rotation
• (4) Mounting screws

Replacing all three mechanical components at once eliminates the diagnostic guesswork of "is it the ball, the shaft, or the cartridge?" and gives you a known-good flush mechanism going forward.

White Finish

The 385310954 features a white finish on the flush ball — matching standard white Dometic toilet bowls.

⚠️ Professional Installation Recommended

Flush mechanism replacement involves working with the toilet's flush actuator components, ball seal interface, and base mechanism. Improper installation can result in flush operation problems, sealing issues, or odor problems. Installation should be performed by a qualified RV service technician for best results.

Genuine Dometic OEM Replacement

As a Dometic factory replacement part with the updated brass shaft engineering, the 385310954 is built to current OEM specifications for a precise drop-in fit on compatible pedal-flush toilet installations.

Key Features

• Genuine Dometic OEM flush mechanism kit
• For pedal-flush VacuFlush toilets with all-plastic pedal mechanisms
• Also compatible with any foot-operated toilet using the reinforced all-plastic pedal architecture
• BRASS rotor shaft — updated from the older plastic shaft for significantly better durability
• Complete mechanism replacement — flush ball, rotor shaft, cartridge, and mounting hardware
• White finish
• Direct replacement for the discontinued 385310681 kit (which had plastic shaft)
• Cost-effective versus sourcing individual mechanism components

What's Included

• (1) Flush Ball
• (1) Rotor Shaft (BRASS — updated material)
• (1) Cartridge
• (4) Mounting Screws

Specifications

• Brand: Dometic
• Part Number: 385310954
• Replaces: Dometic 385310681 (older kit with plastic shaft)
• Type: Flush Ball, Rotor Shaft, and Cartridge Kit
• Compatible Models: Pedal-flush VacuFlush toilets with all-plastic pedal; other foot-operated toilets with reinforced all-plastic pedal architecture
• Color: White
• Rotor Shaft Material: BRASS (updated from older plastic version)
• Engineering Update: Brass shaft for improved durability vs older plastic shaft