JCZ RV Toilet Seal Replacement 385316140, with Extra Drain Holes — Open-Box, 8% Off

Check The Hole Before Ordering: This RV toilet seal replacement for Dometic, SeaLand, Mansfield, Traveler, VacuFlush and EcoVac fits confirmed models only when each old seal has an extra drain hole Made for 385316140: Each seal has one 0.55 in drain hole; the small edge notch is for alignment, not drainage. If old seals have no extra hole, choose 385311462 Install In The Right Order: Place the thin flush ball seal gasket on the ball first with THIS SIDE UP facing up, then add the thick toilet bowl seal. Align both edge notches with the locating post Check Both Seal Sizes: Both seals measure 7.00 in across. The thin seal has a 3.00 in inner diameter and is 0.11 in thick; the thick seal has a 3.70 in inner diameter and is about 0.26 in thick What You Get: One thin flush ball seal and one thick bowl-to-base seal in virgin silicone. Gloves, grease, cleaning cloth and printed instructions are not included. Not for Dometic 300, 310 or 320

Product Overview
The JCZ 385316140 RV toilet seal kit is a two-piece replacement for confirmed Dometic, SeaLand, Mansfield, Traveler, VacuFlush and EcoVac toilet models that use the extra-drain-hole version. This RV toilet flush seal replacement kit includes a thin flush ball seal and a thick bowl-to-base seal for RV, camper, travel trailer and marine toilet maintenance.

Specifications and Included

• Version: Replacement for 385316140; each seal has one 0.55 in / 14 mm extra drain hole.
• Material: Virgin silicone with no recycled material.
• Thin flush ball seal: 7.00 in OD, 3.00 in ID and 0.11 in thick.
• Thick bowl-to-base seal: 7.00 in OD, 3.70 in ID and approximately 0.26 in thick.
• Diameter tolerance: plus or minus 0.04 in; thickness tolerance: plus or minus 0.004 in.
• Included: One thin seal and one thick seal.
• Not included: Gloves, silicone grease, cleaning cloths or printed instructions.

Confirmed Compatibility
Confirmed models include 506, 510, 510+, 511H, 547, 548, 706, 709, 748, 749, 806, 808, 847, 848, 1147, 1148, 2010, 2011, 5006, 5047, 5048 and 5049; EcoVac 146, 147, 148 and 149; VacuFlush 168, 606, 647, 648, 1006, 1008, 1047, 1048, 1049, 1106, 5146, 5147, 5148 and 5149; and SeaLand 910. Production versions may differ, so the model list alone is not enough to confirm fit.

Installation Notes
Before ordering, inspect both old seals. Choose 385316140 when each old seal has an extra drain hole. If the old seals do not have an extra hole, choose 385311462 instead. Then verify the toilet nameplate PNC/Product Number or SKU. The small edge notch is an alignment feature and is not the extra drain hole.
Follow the toilet manufacturer's service procedure to reach the seal area. Place the thin seal on the flush ball first with THIS SIDE UP facing upward. Place the thick seal above it, then align both edge notches with the toilet base locating post before reassembly.

Solving Real-World Fit Problems
385316140 and 385311462 identify two different complete two-piece kits; they are not separate part numbers for the thick and thin seals. The visible 0.55 in holes, separate dimensions and molded direction mark help buyers identify the correct version and stacking order. In a VacuFlush holding test, vacuum drop was no more than 0.3 inHg over 30 minutes. This result applies to the tested setup and is not a zero-leak guarantee for every toilet or installation.

Why Choose This Product
This JCZ RV toilet seal replacement states the version, dimensions, hole size, installation order and exclusions before purchase. For buyers comparing a camper toilet seal replacement, an RV toilet gasket replacement or VacuFlush marine toilet parts, fit must be based on the confirmed model, old seal holes and nameplate information rather than the RV or marine setting alone.

Frequently Asked Questions

Q1: How do I choose between 385316140 and 385311462?
Choose 385316140 if each old seal has an extra drain hole. Choose 385311462 if there is no extra hole, then verify the toilet nameplate PNC/Product Number or SKU. This product replaces 385316140 only.

Q2: Is this RV toilet seal for Dometic models?
Yes, for the confirmed Dometic and related models listed above when the old seals have the extra holes and the nameplate information matches. This is a JCZ replacement product, not an original Dometic part.

Q3: Which seal goes on the bottom?
The thin flush ball seal goes on the bottom with THIS SIDE UP facing upward. The thick bowl-to-base seal goes above it, and both edge notches align with the toilet base locating post.

Q4: Is the small edge notch the extra drain hole?
No. The extra drain hole is a round 0.55 in / 14 mm opening. The smaller edge notch is used for alignment with the locating post.

Q5: Does this fit Dometic 300, 310 or 320 toilets?
No. Dometic 300, 310 and 320 toilets use a different 385311658 flush ball seal structure.

Q6: Is this a universal RV gravity flush toilet seal?
No. It can be used only when the confirmed model, 385316140 extra-hole version and nameplate information match. RV, camper or marine use by itself does not confirm fit.

Q7: Does the package include gloves, grease or instructions?
No. The package includes one thin flush ball seal and one thick bowl-to-base seal only. Gloves, silicone grease, cleaning cloths and printed instructions are not included.