Top 10 Best spare parts in 2026

Last Updated - 6/16/2026

🏆Best Choice

NZRAQK

RV Toilet Seal, Flush Ball Seal Gasket Replacement 385311658 for Dometic 300/310/320, High-Grade Rubber, Toilet Seal Parts Solve The Leakage Problem, 2-Pack

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•【SOLVE PROBLEM】This RV toilet seal parts can fix the odor and water leakage problems caused by the broken original rubber gasket, and keep the water in place and discharge the peculiar smell, so as to achieve a better flushing effect, providing you with a clean RV toilet environment.
•【COMPATIBILITY】Our flush ball gaskets are a perfect fit for Dometic 300/ 310/ 320 RV, Our seal is designed to replace the 385311658 RV toilet seal kit，DOES NOT FIT MODELS: 210 510 or Other Models Not Mentioned.
•【HIGH-QUALITY MATERIAL】Our 385311658 RV toilet seal kit is manufactured with premium grade rubber blend, use original device to make molds making gasket fit perfectly. strong sealing, wear resistance and long life characteristics. Easily solve the problem of water leakage, so you can travel without worry.
•【EASY INSTALLATION】1, Turn off the water supply 2, remove the old flush ball(no disassembly required of the toilet) 3, install the new one in the same place.note that the "THIS SIDE UP" side is facing up 4，ensuring it's seated in fully, check for leaks.
•【QUALITY CUSTOMER SERVICE】 We strive to maintain fairness and honesty with all customers,including providing a 30-day return and exchange policy. If you have any questions, please feel free to contact us.. We will provide you with 24 hours online service.

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$8.99

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RNTKAB

RV Toilet Seal, Flush Ball Seal Gasket Replacement for Dometic 300/310/320 - Upgraded 385311658 - Toilet Seal Parts to Solve The Leakage Problem, 2-Pack

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Solve Problem: This RV toilet seal replacement the problem of odor and water leakage when the original rubber gasket breaks. It can stabilize the water level, discharge odor, ensure a more effective flushing process, and provide you with an original RV toilet space.
•Compatibility: Our RV toilet replacement seal is a perfect substitute for Dometic 300/310/320 RV. Its design is very accurate, and its quality exceeds that of OEM. Please note that it does not apply to models 210, 510 or other models not mentioned.
•Upgraded Materials: The RV toilet's sealing parts, molded with original equipment, ensure a perfect fit and are upgraded with a superior rubber blend for extended lifespan. They have excellent sealing ability and wear resistance, effectively resolving water leakage.
•Easy to install: 1. Shut off the water supply. 2. Remove the old flush ball (no need to disassemble the entire toilet). 3. Install the new seal in the same position, making sure the "THIS SIDE UP" side is facing up. 4. Ensure it is properly seated and conduct a leak check.
•Packaging Content: Our Flush Ball Seal Gasket are available in 2, 3, or 4 sets as options; Provide alternatives for Dometic 300/310/320 RV toilets; Very suitable for retaining spare parts for future replacement, Part #385311658

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$8.99

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Tecreddy

RV Toilet Seal Replacement for Dometic 300 310 320 Toilet Seal Gasket Kit - Replace Part #385311658, 2-Pack

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•【Compatibility】RV Toilet Seal Replacement for Dometic 300 310 320 RV Toilet Gasket Flush Ball Seal Kit - Replace Part Number 385311658. Does Not Fit 210, 510 Or Any Other Models Not Listed.
•【High Quality】 Our rv toilet seal is made of special rubber so it has long service life. Our factory use original device to make molds making gasket fit perfectly. It will help you fix your problem and keep water in place.
•【Easy to Install】It only take you a few minutes to install. Just popped the old seal out (no disassembly required of the toilet) and put the new flush ball seal in place ensuring it's seated in fully. Note that the marked side is facing up.
•【Size】Outer Diameter: 4 Inch; Inner Diameter: 2.75 Inch. Package includes: 2 pieces of rv toilet seal.
•【Save Money】No need to buy a new toilet or pay more than $30 to change the seal. Our rv toilet seal is a cost-effective and high-quality product, which can meet your needs. If you have any concerns or questions, please get in contact with our customer service.

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$17.99

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Dometic

Dometic 385311658 Flush Ball Seal Kit 310 Toilets

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•GENUINE OEM: Spare Parts for reliable and long-lasting performance
•Country of Origin : China
•Includes seal and instructions only

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$33.28

$44.49

-25%

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UHEGDRR

RV Toilet Seal and 3" Socket Floor Flange Kit for Dometic 300 310 320 RV Toilets, Replacement Parts Kit 385345892 Flange, 385311658 Flush Ball Seal and 385311652 Base Seal Gasket, 3 in 1 Repair Kit

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•【Compatibility】: RV Toilet Seal and 3" Socket Floor Flange Kit compatible with Dometic 300 310 320 RV Toilets, perfectly fit and easily solving RV toilet sealing problems.
•【RV Toilet Seal Kit】: Includes: 385345892 RV Toilet 3 Inch Socket Floor Flange*1, 385311658 Flush Ball Seal*1, 385311652 RV Toilet Seal*1, Gland*2, Seal Ring*1, Nut*2, Bolt*2, Self -Tapping Screws*4, Expansion Screws*4. This kit can fulfill all your needs for RV camper toilet seals repair, say goodbye to the difficulty of choosing and matching.
•【High Quality】: Our RV Toilet Seal Gasket and Flange Kit is made of excellent quality material, wear and corrosion resistance for reliable and long-lasting. Designed to fit perfectly, prevents water leakage and eliminates odors, ensuring a fresh RV interior and you can travel without worry.
•【Easy Installation】: First, turn off the water source and remove the old RV toilet flange and seal. Clean the installation area and then securely install the new RV Toilet Socket Floor Flange and 385311658, 385311652 RV toilet seals.
•【Excellent Customer Service】: This RV Toilet Seal Replacement Kit is ideal choose to fix your RV toilet sealing problem. If the product has any problem, please contact us feel free, we can provide you with a satisfactory solution within 24 hours.

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$24.99

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FORZEEY

FORZEEY RV Toilet Foot Pedal Replacement fit for Dometic 300 310 320 321 Series Toilet, Durable Injection Molded Compatible with Dometic RV Toilet Parts

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•【Fit for Dometic Toilets】The foot pedal is specially designed to fit Dometic 300, 310,311, 320 and 321 series RV toilets, helping you restore the flushing function easily.
•【Durable Injection-Molded Design】 Stronger than 3D printed parts, built for long-lasting use and reliability.
•【Cost-Saving Repair Solution】 No need to replace the entire toilet system. Just switch the broken or worn-out pedal, saving time and money with minimal effort.
•【Everything You Need Included】 The Package comes with a spring, screws, and screwdriver, Installation Instruction video, so you can install it right out of the box.
•【Support That Travels With You】 RV life needs reliable parts. If you have any product concerns or installation questions, our friendly customer service is here to help.

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$25.99

$50.99

-49%

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FATCANMA

385318162 RV Toilet Flush Pedal Ball & Shaft Kit Compatible with Dometic Sealand Vacuum Toilets, Flush Cover with Metal Pedal for Camper Trailer& Boat Toilets Replacement Parts

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Upgrade RV Toilet: RV toilet flush ball & shaft kit can repair the issue of the toilet not being able to fill with water, the spring breaking, and the pedal no longer returning to the closed position, resulting in non-stop flushing
•Boat RV Toilets Part: Ball and shaft kit with spring cartridge fits for Dometic&Sealand vacuum model toilets. (NOT Compatible with EcoVac and 5000 series marine toilets also does not replace flush ball & shaft on 300, 310, or 320 Series)
•High Quality: Crafted from high-quality materials, RV toilet parts features a sturdy ball and shaft that are built to withstand the demands of frequent use
•Easy to install: Turn off the water supply to the RV toilet, remove the pedals and base cover and replace them with new RV accessories
•Note: Please confirm the model and size before purchasing. Any brand name or model name for this product is for proof of compatibility only. If you have any questions, please feel free to contact us.

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$25.59

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Dometic

Dometic 385314349 Toilet Water Valve Assembly, Screws Included | Easy, Installation

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•GENUINE OEM: Spare Parts for reliable and long-lasting performance
•HASSLE-FREE: This replacement toilet water valve assembly includes the necessary screws and instructions for a simple and hassle-free installation
•Check part numbers to ensure proper fit
•Fits select Dometic / Sealand toilets (See long description)

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$50.99

$64.30

-21%

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Ophjerg

Ophjerg 385316906 RV Toilet Vacuum Breaker Kit Compatible with Dometic Sealand Toilets, Toilet Parts for Dometic Sealand VacuFLush Traveler Toilets without Hand Sprayer Hook Up

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Vacuum Breaker Kit for Dometic Sealand: Fit for dometic sealand toilet parts, vacuum breaker part number 385316906. Compatible with VacuFlush, Traveler and other Dometic toilets, fix toilet leak problem. Please Note: Do not use with hand sprayer.
•Compatible with: For Dometic 110, 111, 130, 131, 147, 148, 149, 210, 248, 506+, 508+, 509+, 510+, 511+, 547+, 548+, 557+, 558+, 606, 647, 648, 706, 709, 711, 712, 748, 749, 806, 808, 847, 848, 910, 911, 913, 1006, 1008, 1047, 1048, 1049, 1088, 1106, 1147, 1148, 1548, 1606, 1609, 1648, 2010 and 2011 toilets.
•Upgraded Vacuum Breaker: The Ophjerg replacement vacuum breaker has been redesigned with upgraded materials and construction which is thicker walls and tighter connection to the toilet body, not easy to break and age, long service life.
•Easy to Install: Simply remove the old vacuum breaker from your rv toilet and install the new one in its place. You can also search for 385316906 on YouTube to watch the installation.
•Buy with Confidence: Your satisfaction is our goal! If you have any questions about our compatible with Dometic SeaLand vacuum breaker Kit, whether it's pre-sales or after-sales, we will give you a satisfactory answer within 24 hours!

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$11.89

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Halotronics

Halotronics Upgraded RV Water Valve Replacement Kit for Pedal-Flush Toilets, Compatible with Sealand Dometic 300, 301, 310, 311, 320, 321 (385311641) - Hardware Included, 2024 Model

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Features | This replacement kit includes all the necessary parts to get your valve working properly. Designed with increased freeze-resistant materials.
•Quality | Strong and durable ABS plastic ensures a perfect fit for your existing toilet’s hardware. The threaded spout screws in tight into your water line to protect from leaks, and is resistant to fractures prolonging use.
•Specifications | This package comes with 1 water valve. Included parts: water valve, hose clamp, and screw fasteners. Replacement for part number 385311641.

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$9.99

$10.99

-9%

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