Toto spares, Toto parts, Toto spare Parts, Spare Code No : TH31629.TOTO spare part TH31629 is a hand...

Toto spares, Toto parts, Toto spare Parts, Spare Code No : TH31629.

TOTO spare part TH31629 is a handle component (handle spindle/handle part) used in selected TOTO faucet and mixer products. Depending on the regional catalog, it is described as:

  • Part number: TH31629
  • Part name (Taiwan): Handle Part (把手零件)
  • Part name (Japan): Spindle (スピンドル)

Uses

TH31629 is a mechanical component inside the faucet handle assembly. Its functions include:

  • Connecting the external handle to the internal valve mechanism.
  • Transmitting the turning motion of the handle to open or close the water flow.
  • Controlling water flow (and, on compatible mixers, water mixing/temperature).
  • Supporting smooth handle operation and maintaining proper alignment.

Compatible models

According to TOTO parts catalogs, TH31629 is used with models including:

  • TMC95
  • TMC95R
  • TMC95V202

Symptoms of a worn or damaged TH31629

If this part is worn or damaged, you may notice:

  • Loose or wobbly handle.
  • Difficulty turning the faucet handle.
  • Handle turns but water flow does not change correctly.
  • Rough or stiff handle operation.
  • In some cases, inability to fully open or close the water supply.

If you have the exact TOTO faucet model (for example, TMC95 or TMC95R), I can also provide the exploded parts diagram showing where TH31629 fits in the assembly.

TOTO spare part TH31629 is a handle component (handle spindle/handle part) used in selected TOTO faucet and mixer models, including the TMC95, TMC95R, and TMC95V202 series. It connects the external faucet handle to the internal valve mechanism.

Uses of TH31629

  • Connects the faucet handle to the internal ceramic valve or spindle.
  • Transfers the handle's rotation to open or close the water flow.
  • Helps regulate water flow rate.
  • On mixer faucets, assists in controlling hot and cold water mixing.
  • Keeps the handle securely aligned for smooth operation and accurate control.

If TH31629 is damaged

Common symptoms include:

  • Loose or wobbly handle.
  • Handle becomes stiff or difficult to turn.
  • Handle rotates without properly opening or closing the water.
  • Inconsistent water flow control.
  • Excessive play in the handle due to wear.

TH31629 is a mechanical handle part rather than a water-sealing component. It works together with the faucet's cartridge or valve assembly to transmit the user's input from the handle to the valve.

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Jul 20th, 2026 11:20 AM

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