Xastro RV toilet flush pedal replacement for Dometic 300/310/320/321 — one-piece reinforced PP kit with torsion spring

Replace a worn Dometic RV toilet pedal quickly with Xastro's upgraded one-piece flush pedal kit that restores reliable flushing without replacing the whole toilet.

If your Dometic 300/310/320/321 toilet pedal is cracked, sticking, or no longer returns properly, this Xastro replacement kit offers a durable, low-cost fix. The pedal is injection-molded from reinforced polypropylene for improved strength and corrosion resistance, and the complete kit includes every part needed for a fast swap so you can be confident in performance on the road.

How does this replacement pedal restore flush performance?

The Xastro pedal is a direct-fit component designed to replicate the original geometry while improving wear resistance. It reconnects to the existing lever mechanism and the included torsion spring restores proper return tension for consistent flush action.

• Direct compatibility with Dometic 300/310/320/321 models.
• One-piece injection-molded construction for long-term durability.
• New torsion spring to recover pedal return and responsiveness.
• Includes suction cup and cover for a finished fit.

What comes in the kit and what tools do I need?

The kit arrives as a complete replacement package: pedal main body and upper cover, torsion spring, PVC suction cup, Phillips screw, a dual-head screwdriver, gloves, and printed instructions. Installation is intended to be simple and requires only the supplied or any standard screwdriver.

• Pedal main part and upper cover pre-matched for fit.
• Installation hardware and a dual-use screwdriver included.
• Step-by-step manual reduces guesswork during replacement.
• Estimated install time: about five minutes for most users.

Why choose this Xastro pedal over a full toilet replacement?

Replacing just the pedal is far more economical and faster than buying and fitting a new toilet assembly. The upgraded PP material and injection-molded design are built to last, cutting the likelihood of repeat replacements and lowering long-term repair costs.

• Up to 80% cost savings versus full toilet replacement.
• Premium materials beat standard plastics in strength and corrosion resistance.
• Injection-molded one-piece part resists fatigue better than painted or 3D-printed options.
• Complete accessory set avoids extra trips to the hardware store.

Is installation difficult for non-technical RV owners?

No special skills are required—Xastro designed this kit for straightforward, owner-performed installation. The manual walks through each step and the included screwdriver and gloves let you complete the swap without additional tools.

• Only a Phillips screwdriver is needed.
• Simple removal of the old pedal and reassembly of the new one.
• Installation guidance included to minimize mistakes.
• Customer support from Xastro available if you hit a snag.

Who is this for? RV owners and fleet operators with Dometic 300, 310, 320 or 321 toilets who want a fast, cost-effective repair. It’s ideal for people who prefer DIY maintenance, travelers who need dependable hardware on the road, and service shops that handle routine RV bathroom maintenance. If you need the original flushing function restored without replacing the whole toilet, this Xastro kit delivers the parts, tools, and instructions to get you back in service quickly.