Dometic | 421 Platinum RV Toilet W/ Elongated Porcelain Bowl | 9610008283 | 9610007972 | Short Height | White

Transform your RV bathroom with the premium comfort and residential styling of the Dometic 421 Platinum RV Toilet. Designed as the low-profile model in Dometic's premium 400 Series, the Dometic 9610008283 (OEM 9610007972) combines an elongated porcelain bowl, quiet gravity-flush performance, and a space-saving footprint to deliver exceptional comfort without sacrificing valuable floor space.

Ideal for RV owners who prefer a lower seat height or need a replacement that fits tighter bathroom layouts, the Model 421 offers the same premium engineering and flushing performance found in Dometic's flagship 420 Platinum while providing a comfortable13-1/2-inch seat height. Its compact rear profile and universal 7-5/8-inch rough-in allow it to replace virtually any major RV toilet with minimal installation effort.

Whether you're replacing a worn factory toilet or upgrading from a plastic model, the Dometic 421 Platinum delivers long-lasting durability, superior flushing performance, and residential-quality comfort for every journey.

Premium Residential Comfort in a Compact Design

The Dometic 421 Platinum is engineered to provide the feel of a household toilet while maximizing space inside your RV. Its premium elongated porcelain bowl offers increased comfort over traditional round-bowl RV toilets, while the durable, non-porous glazed surface resists stains, scratches, and odors for easier cleaning and long-lasting appearance.

The low-profile design makes the 421 an excellent choice for RV owners who prefer a lower seating position or need additional clearance in compact bathrooms without sacrificing the comfort of an elongated bowl.

Replacement for Virtually Any RV Toilet

Designed with one of the industry's shortest rough-in requirements, the Model 421 easily replaces most major RV toilet brands without modifying your existing bathroom layout.

The universal 2-bolt mounting system fits standard7-5/8-inch or greater rough-ins, making installation straightforward for both professional installers and experienced DIY RV owners.

Whether replacing an older Dometic, Thetford, Aqua-Magic, or other RV toilet, the 421 Platinum is engineered to simplify the upgrade process.

Powerful and Efficient Gravity Flush Performance

The Dometic 421 utilizes a high-performance gravity flush system designed to provide powerful bowl cleaning while minimizing water consumption. The integrated dual-action foot pedal offers convenient hands-free operation:

• Press partially to add fresh water to the bowl.
• Press fully for a complete gravity flush.

Combined with Dometic's optimized bowl design, the flushing system provides quiet operation and thorough waste removal while conserving valuable fresh water.

Soft-Close Seat and Residential Features

Every Model 421 Platinum includes a premium residential-style elongated seat with a soft-close lid that quietly lowers without slamming.

The easy-clean hinge design simplifies routine maintenance while providing a secure, stable seating surface that feels much more like a residential bathroom fixture than a traditional RV toilet.

Designed for Long-Term Reliability

Constructed from premium porcelain and engineered specifically for the demands of RV travel, the 421 Platinum is built for years of dependable service.

The redesigned gravity-flush system features improved sealing technology that helps reduce odors while minimizing the potential for leaks. Serviceability is equally impressive, with a tool-free ball seal design that allows one of the most common maintenance items to be replaced quickly without disassembling the toilet.

Features

• OEM Dometic Part Number:9610008283
• OEM Cross Reference:9610007972
• Premium elongated porcelain bowl
• White finish
• Short-height design for improved accessibility and compact installations
• Comfortable 13-1/2-inch seat height
• Residential-style soft-close seat and lid
• Hygienic dual-action foot pedal flush control
• Fits standard 7-5/8-inch or greater rough-ins
• Compact rear profile maximizes bathroom space
• Scratch, stain, and odor-resistant porcelain construction
• Tool-free ball seal access for simplified maintenance
• Uses existing RV fresh water and holding tank systems
• Permanent floor-mounted installation
• Backed by Dometic's Limited 2-Year Warranty

Specifications

Why Choose the Dometic 421 Platinum?

The Dometic 421 Platinum is the perfect solution for RV owners looking for premium residential comfort in a lower-profile package. Its elongated porcelain bowl, quiet gravity-flush operation, soft-close seat, universal fit, and space-saving design make it one of the finest upgrades available for modern RV bathrooms. Whether you're replacing an aging RV toilet or upgrading for enhanced comfort and durability, the 421 Platinum delivers reliable performance and premium quality backed by one of the most trusted names in the RV industry.

Need help confirming fitment?

Our team at United RV Parts is here to help you find the right replacement or parts for your RV Toilet.

Text or call 817-984-1852 with the make and model number of your existing RV Toilet and we’ll make sure you get exactly what you need the 1st time.

Images are for illustration purposes only, actual product may vary slightly in color or appearance