Toto Spares, Toto Parts, Toto Spare Parts, Spare Code No : TC504-L1.The TOTO TC504-L1 is an original...

Toto Spares, Toto Parts, Toto Spare Parts, Spare Code No : TC504-L1.

The TOTO TC504-L1 is an original bolt and fastener set used to secure compatible TOTO toilet seat and cover assemblies to the toilet bowl. It is supplied as a set of two bolts with fastening hardware for installation or replacement.

Part details

  • Part number: TC504-L1
  • Part name: Bolt & Fastener Set
  • Quantity: 2 bolts with matching fastening components
  • Application: Toilet seat and cover fixing hardware
  • Function: Secures the toilet seat hinges firmly to the ceramic bowl while maintaining proper alignment.

Uses

The TC504-L1 is used to:

  • Install a new TOTO toilet seat and cover.
  • Replace corroded, damaged, or missing mounting bolts.
  • Eliminate loose or wobbling toilet seats.
  • Restore secure attachment after repeated seat removal for cleaning or maintenance.

Compatible products

The TC504-L1 is commonly used with selected TOTO toilet seat models, including:

  • TC504CVK Duroplast Seat & Cover with Metal Hinges & Soft Close
  • Other compatible TOTO seat assemblies that specify TC504-L1 in their spare parts list.

When to replace

Replace the TC504-L1 if:

  • The mounting bolts are rusted or broken.
  • The plastic or metal fasteners no longer tighten securely.
  • The toilet seat shifts during use.
  • You are installing a replacement seat that requires new mounting hardware.

The TOTO TC504-L1 is a bolt and fastener set (2 pieces) used to mount and secure compatible TOTO toilet seats and covers to the toilet bowl. It is an original replacement hardware kit for selected TOTO soft-close and duroplast seat models.

Uses of TC504-L1

  • Installs a new toilet seat by fastening it securely to the toilet bowl.
  • Replaces worn, rusted, broken, or missing mounting bolts.
  • Stops seat movement or wobbling by restoring a firm attachment.
  • Maintains proper seat alignment for smooth opening, closing, and soft-close operation.
  • Supports routine maintenance, such as replacing old hardware when changing or servicing a toilet seat.

Typical applications

The TC504-L1 is commonly used with compatible TOTO toilet seats, including:

  • TC504CVK Duroplast Seat & Cover with Metal Hinges & Soft Close.
  • Other TOTO toilet seat models that specify TC504-L1 as the mounting hardware in their spare parts list.

When to replace

Replace the TC504-L1 if:

  • The toilet seat becomes loose or shifts during use.
  • The mounting bolts or fasteners are damaged, corroded, or missing.
  • The seat cannot be tightened securely.
  • You are installing a replacement TOTO seat and need new fixing hardware.

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Mobile No : 888 333 33 22.




Jul 18th, 2026 12:30 PM

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