Rakiyada RV Toilet Valve Replacement Kit Fits Dometic 300/310/400 Series – Valve & Seal Kit with Filters

Rakiyada's RV toilet valve replacement kit is a direct-fit repair set that restores reliable flushing and seals for Dometic 300/301/310/311/320/321/400/410/420 series toilets.

If your RV toilet is leaking, smelling, or not flushing cleanly, this kit replaces the OEM valve (385311641) and seal (385311658) with matched components engineered for long life. The set includes the valve, flush ball seal, hose clamp, screws and washers, plus stainless steel mesh filters for maintenance. Components are made from thermoplastic polymer and a durable rubber compound, and Rakiyada uses ultrasonic welding to strengthen the valve body.

What exactly comes in the replacement kit and why each part matters?

The kit provides everything required to replace the valve assembly and restore a secure water seal. Small parts like screws, washers and a hose clamp are included so you can complete the repair without scavenging hardware.

• 1 toilet water valve (OEM equivalent 385311641) for reliable operation.
• 1 flush ball seal (OEM equivalent 385311658) to stop leaks and odors.
• 1 hose clamp to secure plumbing connections.
• 2 screws and washers for mounting the valve assembly.
• 2 stainless steel mesh filters to catch debris and simplify future maintenance.

How do I know this will fit my Dometic model?

The kit is manufactured to match the dimensions and mounting points of the original Dometic parts listed. It is explicitly compatible with multiple model numbers across several Dometic series, making it a straightforward swap for affected toilets.

• Compatible with Dometic 300, 301, 310, 311, 320, 321, 400, 410, and 420 series.
• Direct replacement for OEM part numbers 385311641 (valve) and 385311658 (seal).
• Works with common model codes such as 9108765625, 9108923942, 9108781897 and others in those series.

Will this kit stop leaks and reduce odors?

Replacing worn valves and seals typically resolves water seepage and odor pathways caused by aged or damaged components. The included seal and properly fitted valve restore the bowl-to-holding-tank barrier when installed correctly.

• New rubber seal prevents leaks where old seals hardened or cracked.
• Tight-fitting valve body reduces bypass and improves flush performance.
• Mesh filters help prevent solids from entering valve passages, extending service intervals.

How difficult is installation and what tools are required?

Installation is designed to be achievable by most DIYers with basic tools; many users follow online video guides for a step-by-step visual. The kit provides the small fasteners and clamp so you typically only need screwdrivers, pliers and possibly a socket or wrench.

• Typical tools: flathead or Phillips screwdriver, pliers, small socket or wrench.
• Online installation videos and guides are widely available for these Dometic series toilets.
• Allow 30–60 minutes for removal of the old valve and fitting the new components if accessible.

Who is this for: RV owners, repair technicians and maintenance staff who use Dometic toilets across the 300–420 series and need a cost-effective, OEM-compatible replacement. It suits anyone troubleshooting slow flushes, persistent dampness around the bowl, or recurring odor issues and who prefers repairing the existing toilet rather than replacing the entire assembly. If you want parts engineered for longer life with straightforward installation and included maintenance filters, this kit is built for that purpose. Rakiyada also provides after-sales support to help with any fitment or installation questions.