Choose Duravit D-Code 0067390000 for a confirmed matching D-Code bowl, or D-Neo 0021690000 for its listed D-Neo application, including bowl 257709. Both offer slow close. Match the toilet and complete seat article number before comparing hinge material or the removal feature.
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This document-based guide compares two current maker-listed replacement seats. We checked exact new Amazon offers separately and did not test the seats.
Compare the exact replacement parts
On a phone, swipe or scroll the table sideways to see every column.
| Seat and series | Listed width × length | Hinges / closing | Bowl example to verify |
|---|---|---|---|
| 0067390000 D-Code | 13-3/4 × 17-1/4 | Plastic / slow close | 253509 |
| 0021690000 D-Neo | 14-3/4 × 17-3/8 | Stainless steel / slow close | 257709 |
The D-Code product record (pro.duravit.us) and D-Neo product record (pro.duravit.us) provide these seat dimensions and hinge specifications. Both checked maker variants are White High Gloss. The D-Code spare-part record (spares.duravit.us) lists 253509 among its bowl matches; the D-Neo spare-part record (spares.duravit.us) lists 257709.
These are separate replacements, not interchangeable trim choices. Start with the ceramic model and the complete seat article number. A closing feature or a similar-looking lid cannot establish that one will replace the other.
D-Code 0067390000: for a confirmed D-Code match
Choose 0067390000 when your bowl’s exact replacement information calls for this D-Code seat and cover. The current US spare-part entry (spares.duravit.us) identifies the complete article number and describes soft close with plastic hinges. Bowl 253509 is one listed example; the series name alone is not the fit check.
The linked product record lists a 13-3/4 by 17-1/4-inch footprint. Treat that as a reference for this seat, rather than substituting a generic round-seat length. The part’s outer profile, mounting arrangement and relationship to your ceramic still need to match. The sources used here do not establish a removable-seat feature for this D-Code model; that is an unverified feature, not a claim that removal is impossible.
Skip it if you have only guessed the toilet series from a photograph, need the D-Neo replacement below, or specifically require documented stainless steel hinges. Do not substitute a similar six-digit D-Code number without checking its full suffix and closing feature.
The standard new Amazon offer checked on October 15, 2026 was sold by Amazon.com, showed stock and had an add-to-cart button. Both its model and manufacturer part number were 0067390000, with White selected. This is an offer identity check, not an installation or durability test.
Check Duravit 0067390000 on Amazon →
D-Neo 0021690000: removable seat for the listed bowl
Choose 0021690000 for a confirmed D-Neo replacement, including bowl 257709 as listed in the current US spare-part entry (spares.duravit.us). Its product record (pro.duravit.us) specifies slow close, stainless steel hinges and a removable seat. It also identifies a wrap-over design and a Nickel hinge color.
The listed seat size is 14-3/4 by 17-3/8 inches. The maker describes this exact variant as D-shaped. The checked Amazon title calls this seat round, while Duravit’s exact variant is D-shaped. The complete 0021690000 model and White selection matched, but the retail shape label does not establish a generic US round-bowl fit. Use the maker’s bowl mapping.
Skip it for a D-Code bowl merely because the length looks close, or for a toilet whose replacement chart identifies another seat. Also stop if you cannot establish how your existing seat and mounting hardware relate to the exact replacement part.
The checked new Amazon.com offer showed stock and an add-to-cart button. Its model and manufacturer part number both matched 0021690000, with White selected. Check that selection again after switching a variant; a shared product page can contain more than one seat or finish.
Check Duravit 0021690000 on Amazon →
Find the ceramic model before buying
Record the toilet’s model information from your original paperwork or accessible product markings. Keep the seat article number separate from the ceramic number. In the examples above, 257709 identifies the bowl while 0021690000 identifies the replacement seat and cover.
If the model is uncertain, gather clear views of the whole bowl, the seat outline and the hinge area, then ask Duravit to identify the replacement. Its linked US spare-part pages provide a customer-assistance route. Do not select a seat just because an online photo resembles the old lid.
Preserve the complete number when searching. The leading zeros in 0067390000 and 0021690000 are part of the maker’s displayed article numbers. A shortened family reference is useful for finding a catalogue entry, but the full order number is what you should compare with the selected offer.
For a straightforward replacement, a confirmed existing seat number can help narrow the search. Still check it against the toilet information if the old seat never fitted correctly. Copying a previous owner’s mismatched part would preserve the same problem.
Use dimensions as a second check
Write down your bowl’s outside outline, widest point, mounting-hole spacing and the distance from the mounting line to the front. Our toilet seat sizing guide explains those measurement references. Compare equivalent dimensions; do not compare an opening measurement with an overall lid dimension.
The two seat footprints in the table are similar in length but differ in width. That makes the table useful for spotting an obvious mismatch, not for proving a swap. No universal mounting-hole spread or adjustment range is established for either pick in this guide.
Check the space behind the hinges and the route of the raised lid against the tank or wall. Photograph that area before taking the old seat apart. A shape match at the front of the bowl does not answer whether the back of the assembly has enough room. The table’s listed length is not the distance from the bolt centers to the front, so do not use those two measurements as if they shared a reference point.
If a dimension does not seem to agree, pause the order and confirm the reference points with the maker. Do not round a measured difference away or assume that an unlisted hinge adjustment will absorb it. Keep your measurements with the model information so the same fit question does not have to be reconstructed later.
Separate slow close, removal and hinge material
Both accepted models have a documented slow-close feature. That describes their closing mechanism; this comparison does not rank closing speed, noise or service life. We did not install either seat or measure how it behaves after repeated use.
D-Neo’s explicit removable-seat designation is a separate feature. It should not be read as a promise that every hinge anchor can be removed from above or that the whole fastening system comes out with the lid. Follow the instructions for the exact delivered hardware.
D-Code’s plastic hinge specification and D-Neo’s stainless steel hinge specification describe the hinges. Neither label establishes the seat body’s material. We also do not infer a tested strength, corrosion ranking, load limit or comfort advantage from those two material names.
If easy removal is essential, verify the exact model’s instructions before ordering. Do not transfer a removal method shown for another Duravit series to your toilet. The broader toilet seat guide offers other selection factors once the bowl compatibility is settled.
Check the finish and the replacement package
The maker variants used here are White High Gloss. Both accepted retail offers had White selected and the exact complete model number. An offer with an Off-White color field was excluded even though its title contained the words White High Gloss.
That exclusion matters when a marketplace title, color selector and model field disagree. Do not use a photograph to decide which field to ignore. Find a consistent exact-model offer or obtain a clear maker mapping before buying a different variant.
For a close visual color match, use the toilet’s original finish information and the maker’s guidance. A screen image cannot establish how two white surfaces will look together under your bathroom lighting. The Nickel label on D-Neo describes its hinge color, not a second seat-body finish.
Confirm the replacement package and hardware with the selected offer and the supplied instructions. The records establish seat and cover models, but this guide does not promise a particular loose-fastener inventory, reuse of the old anchors, or a specific tightening torque. Check those details before dismantling an assembly with limited access.
Keep this a seat replacement decision
These recommendations concern the seat and cover. A compatible seat number does not establish how to install the toilet itself, change its support, or alter surrounding plumbing. Keep the ceramic and its existing installation separate from this purchase decision.
If a hinge fastener spins or access is hidden, identify the hardware before applying force. Use the delivered model-specific instructions and ask the maker for clarification when the arrangement is unclear. This comparison supplies no universal anchor-removal sequence or substitute fastener specification.
Retain the article number, offer details and instructions together after the purchase. They are useful if you later need a replacement component or have to distinguish a seat problem from an installation mismatch. Avoid assuming that every part marketed under the same series name shares the same hardware.
Frequently asked questions
Which Duravit seat should I buy for bowl 257709?
Duravit’s current US spare-part entry lists D-Neo 0021690000 for 257709. Confirm your complete toilet identity and the exact selected offer before ordering.
Are D-Code 0067390000 and D-Neo 0021690000 interchangeable?
No interchangeability is established here. They have different listed footprints and replacement mappings. Match the exact bowl and seat part number first.
Do both recommended seats have soft close?
Yes. The maker documents slow close for both exact models. This guide does not compare closing speed, noise or long-term hinge life.
Does stainless steel hinges mean a stainless steel seat?
No. The hinge material label describes the hinge. It does not identify the seat body material.
Is the D-Neo seat a universal round replacement?
No universal fit is established. The maker calls 0021690000 D-shaped and lists a specific bowl match; the word round in a retail title does not override that information.
How we chose
We read the current Duravit pro product records and US spare-part entries for these two exact article numbers. We compared documented footprints, hinges, closing and removal features with bowl mappings. No PDF drawing or installation manual is claimed as read for this page. We checked new Amazon offers on October 15, 2026 for full model and part number, selected color, seller, stock and cart availability. Two other offers were excluded for conflicting Off-White selections. These are application-specific choices, not a performance ranking. Read our selection method and about Plumbing Picks.
Primary sources
- D-Code 0067390000 product record (pro.duravit.us): Listed footprint,WhiteHighGloss,slowclose andplastic hinges.
- D-Code US spare-part entry (spares.duravit.us): Complete article identity and bowl253509 among current listed mappings.
- D-Neo 0021690000 product record (pro.duravit.us): D-shaped,footprint,WhiteHighGloss,stainlesshinges,Nickelhingecolor,removable andwrapover.
- D-Neo US spare-part entry (spares.duravit.us): Exactarticle0021690000 andbowl257709 mapping.