Toto spares, Toto parts, Toto spare parts, Spare code no: S-B4067 - flush valve w-dual push button, ...

Toto spares, Toto parts, Toto spare parts, Spare code no: S-B4067 - flush valve w-dual push button, Typical features of a dual push‑button flush valve (for TOTO / similar brands)

A dual flush valve with push buttons generally includes:

ComponentDescription / FunctionValve body / cistern assemblyThe main body that mounts inside the toilet cistern, houses the sealing gaskets and flush mechanismTwo push buttons (large + small)One for “full flush”, one for “half flush” (water‑saving mode)Push rods / actuatorsRods or linkage from the buttons to the internal valve mechanismSeals / gasketsRubber or silicone seals that prevent leaks around the valve and at the flush openingOverflow / siphon tube integrated or adjacentTo prevent tank overfillAdjustabilitySome dual valves allow adjustment of flush volumes (or rod stroke length)Mounting / fixing mechanicsThreaded or bayonet fitting, retaining nuts, etc.

What you should find / measure on your existing S‑B4067 unit

To identify or procure the correct spare, here are the key parameters and details to note:

1. Cistern opening diameter
2. The size of the hole in the cistern lid or body which the flush valve (or buttons) must fit.
3. Height of the flush valve assembly
4. From base (or mounting flange) to top of the rod / button mechanism.
5. Flush outlet size
6. The diameter of the flush discharge (outlet) — e.g., 2″, 3″, or TOTO’s standard flush outlet dimensions.
7. Button rod / actuator style
8. How the buttons connect (straight push rods, angled rods, linkage) and their lengths.
9. Sealing gasket dimensions
10. Thicker rubber / silicone seals around the base and where the valve meets the cistern.
11. Mounting / retaining method
12. Threaded nut, bayonet twist‑lock, clips, etc.
13. Any markings / part numbers
14. Often, internal parts are stamped or molded with part codes (look on underside, inside the tank side, etc.).

Steps you can take to find the correct spare

• Contact TOTO support / local dealer
• Provide them the flush valve model (S‑B4067), photos (inside and outside of the cistern, the push buttons, rod assembly), and your measurements. They may supply a parts sheet or cross‑reference.
• Refer to TOTO parts / service manuals
• For your region. Sometimes TOTO publishes exploded diagrams of their cistern / flush valve assemblies where you may see “S‑B4067” or the internal parts (valve body, gaskets, push rods).
• Compare with known dual flush replacements
• Use generic dual flush valve units for 2″ or compatible sizes as a reference to see what parts / measures match (outlet, height, rod style).
• Bring the unit to a spare parts shop
• With the full valve and push button plate, they might help you match dimensions and find a fitting spare.
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