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Dometic SeaLand 385311641 Water Inlet Valve Kit for 300, 310 & 320 Series Toilets Engineering Diagram
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SPECFOUNDRY SKU: SF-RV-115 · BRAND REF: Dometic / SeaLand

Dometic SeaLand 385311641 Water Inlet Valve Kit for 300, 310 & 320 Series Toilets

Stamped Casting / OEM Numbers: 385311641

Compatible Units: Dometic / SeaLand 300, 310 and 320 series RV toilets (not for 510+, 510H or 511H, which use 385314349)

Critical Dimensions & Spec: OEM Dometic rear-mounted fresh-water inlet valve kit; the valve meters supply water into the bowl when the pedal is pressed and refills the bowl

$99.99
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Pre-Order Dimensional Verification Checklist

OEM Cross-Reference & Stamped Casting Number Table

Use this cross-reference table to confirm that the number stamped or printed on your original hardware or circuit board corresponds to SpecFoundry SKU SF-RV-115:

Stamped / OEM Part Number Manufacturer / System Brand Compatible Models & Years SpecFoundry Replacement SKU
385311641Dometic / SeaLandDometic / SeaLand 300, 310 and 320 series RV toilets (not for 510+, 510H or 511H, which use 385314349)Direct Match (SF-RV-115)

Common Failure Symptoms Solved by SF-RV-115

Technicians and property owners typically replace 385311641 when experiencing one or more of the following failure modes:

  • Bowl keeps filling or water trickles in with the pedal at rest
  • Water drips or sprays at the back of the toilet where the supply line connects
  • Pump runs but little or no rinse water enters the bowl when the pedal is pressed

Step-by-Step Dimensional Verification & Installation Notes

Check the model on the label at the back of the toilet: it must read 300, 310 or 320. Turn off the 12V water pump and open a faucet to drop pressure, disconnect the supply line from the inlet at the rear of the toilet, remove the old valve, fit the 385311641 valve, reconnect the line, and run the pump to check for drips.

Frequently Asked Technical Questions (385311641)

Where is the casting or OEM part number (385311641) stamped on this part?

Dometic sells this valve kit as 385311641. Match it by toilet model on the rear label: 300, 310 or 320. Dometic 510+, 510H and 511H toilets use 385314349 instead.

Does SpecFoundry SKU SF-RV-115 directly replace OEM part 385311641 (385311641)?

Check the part number and model before ordering. SF-RV-115 is sold as Dometic / SeaLand 385311641 for Dometic / SeaLand 300, 310 and 320 series RV toilets (not for 510+, 510H or 511H, which use 385314349). If you are unsure, email us a photo of the old part and the appliance or window label before you order.

What measurements should I verify before ordering SF-RV-115?

Before ordering, verify: (1) Stamped or OEM code matches one of 385311641; (2) Dimensional spec matches: OEM Dometic rear-mounted fresh-water inlet valve kit; the valve meters supply water into the bowl when the pedal is pressed and refills the bowl; and (3) Application matches: Dometic / SeaLand 300, 310 and 320 series RV toilets (not for 510+, 510H or 511H, which use 385314349).

How fast does SF-RV-115 ship and what payment methods are accepted?

SF-RV-115 ships within 1–2 business days from our US warehouse network. Flat-rate US Ground shipping is $8.95, or FREE on orders of $150+. You can check out online immediately via PayPal, Venmo, Credit/Debit Card, or request an Instant Card Payment Link / Net-30 Commercial PO Invoice.

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