Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
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Overview
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Dometic USA |
| Part Number | D018 385311559 |
Videos
RV Toilet Seal
Quick Toilet FIX! #shorts
Replacing the Seal on my Dometic Vacuflush Toilet
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Dometic Toilet Flush Ball Replacement
Dometic Sealand Petal Flush Toilet, Flush Ball-Shaft-Spring Cartridge Kit
How to Install the Blue Streak Dispenser on Dometic Sealand Stools
Dometic 210 Sealand Toilet tips And Tricks
How to Replace the Foot Pedal on a Dometic Toilet – Easy DIY Guide!
Dometic RV Toilet Showcase
DOMETIC 310 INSTALL...short and easy install.
etrailer | In-Depth Review of the Dometic RV Toilet Floor Flange Adapter Kit
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RV Toilet Not Holding Water? - Install a New Toilet Seal!
How to Install a Dometic Water Valve in an RV
About MOTORMIA
Buy with Confidence
Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy