Toto spares, Toto parts, Toto spare parts, Spare code no : TC377-D1.TOTO TC377-D1 is a genuine repla...

Toto spares, Toto parts, Toto spare parts, Spare code no : TC377-D1.

TOTO TC377-D1 is a genuine replacement Soft Close Unit (also referred to as the Soft Closing Functional Part) for the TOTO TC377 soft-close toilet seat. It restores the slow, controlled closing action of the toilet seat and lid.

Part details

  • Part number: TC377-D1
  • Part name: Soft Close Unit / Soft Closing Functional Part
  • Application: TOTO TC377 toilet seat
  • Quantity: 1 pair (left and right soft-close units)
  • Construction: Engineering plastic housing with an internal hydraulic damping mechanism
  • Installation location: Inside the hinge assembly of the toilet seat.

Functions

  • Enables the toilet seat and lid to close slowly and quietly.
  • Prevents slamming and reduces noise.
  • Protects the hinges, seat, and toilet bowl from impact.
  • Restores the original soft-close performance when the existing dampers wear out.

When replacement is needed

  • The seat or lid drops suddenly instead of closing slowly.
  • The soft-close action is weak, uneven, or no longer functions.
  • The hinge damper is worn, damaged, or leaking.

Related TC377 spare parts

  • TC377-D1 – Soft Close Unit (1 pair)
  • TC377-E3 – Round Rubber Cushion (4 pieces)

If you need the exploded parts diagram, installation instructions, or compatible TC377 seat models, I can help locate those as well.

TOTO TC377-D1 is the Soft Close Unit (1 pair), also described as the Soft Closing Functional Part, designed for the TOTO TC377 toilet seat. Its primary purpose is to provide a controlled, slow-closing motion for the seat and lid.

Uses of TC377-D1:

  • Enables the toilet seat and lid to close slowly and quietly.
  • Prevents the seat and lid from slamming shut.
  • Reduces noise during operation.
  • Protects the toilet seat, hinges, and ceramic bowl from repeated impact.
  • Improves user comfort and safety by providing a smooth closing action.
  • Restores the original soft-close performance when the existing damping mechanism has worn out or failed.

When it should be replaced:

  • The seat or lid falls shut instead of closing gently.
  • The soft-close action is slow on one side only or has stopped working.
  • The damper mechanism is damaged, worn, or leaking.

Summary

  • Part number: TC377-D1
  • Part name: Soft Close Unit / Soft Closing Functional Part
  • Application: TOTO TC377 toilet seat
  • Quantity: 1 pair (left and right soft-close units)
  • Function: Restores the toilet seat's soft-closing mechanism.

TOTO : Control unit, toto Powercable, toto Rubber flapper, toto Signal Cable& Conduit Pipe, toto Right hook,

toto Screw, toto Concealed Automatic Urinal Flush Valve, toto Shower Hanger & Screw, toto check nut & lock on cartridge, toto Controller Unit, toto Cartridge, toto Fill Valve, toto HANDLE/KNOB, toto SSBolts &Nuts, toto PRESSURE CONTR.., toto Avante Wall Hung Toilet W/Invisible Fixing Kit, toto Flexible Hose, INDIA.


TOTO : Base Plate Assy, toto Soft Landing Unit, toto Soft Landing Unit, toto Damper dryer for WL .., toto DUMPER / PLASTIC LID ON WAND, toto Indication Substrate Assembly, toto Fixed Shower Head, toto Bath & Spout, toto Handle,

Toto thermostatic knob, toto Flange Cap, toto Flange Plate, toto Clamp for valve connector, toto FRAME, toto sensorunit, toto Towel Ring, toto IN WALL SENSOR URINAL FLUSH VALVE, toto Ceramic cartridge for Faucets Australia.

Company Name : Bharat Enterprises.

Web : www.bechennai.com.

Mobile no : 888 333 33 22.




Jul 31st, 2026 11:43 AM

Keywords