Toto Spares, Toto Parts, Toto Spare Parts, Spare Code No : TC300-L1.TOTO TC300-L1TC300-L1 is a TOTO ...

Toto Spares, Toto Parts, Toto Spare Parts, Spare Code No : TC300-L1.

TOTO TC300-L1

  1. TC300-L1 is a TOTO toilet-seat fastening hardware set. TOTO spare-parts listings identify it as “Fastner, Bolt & Washer.”
  2. Be Chennai.
  • Part number: TC300-L1
  • Description: Fastener, bolt & washer
  • Use: Secures the toilet seat/seat assembly to the toilet bowl.
  • Part type: Mechanical fixing hardware—not a soft-close mechanism.
  • Application: Associated with TOTO toilet-seat assemblies, including the TC300 seat family.
  • Contents: Listed as bolt + washer/fastener hardware; the exact quantity should be confirmed against the particular seat's spare-parts drawing. B
  • Be Chennai
  1. TOTO's Japanese product database identifies TC300 as a front-round toilet seat with cover, although regional versions and spare-part configurations can differ.

Related TC300/TC301 parts

  1. The TOTO spare-parts listing separates these components:
  • TC300-L1 — Fastener, bolt & washer
  • TC301-H1 — Seat & cover holder
  • TC301-D1 — Soft-closing unit set
  • TC301-E1 — Bolt cap
  • TC301-E2 — Cushion for cover
  • TC301-E3 — Seat cushions, 4 pcs B
  • Be Chennai
  1. So, TC300-L1 is primarily the fixing hardware, whereas TC301-D1 is the soft-close mechanism.
  2. If you tell me the TOTO toilet/seat model number you have, I can also identify whether TC300-L1 is the correct fixing kit and show its installation position.

B

  1. toto spares TC300-L1 uses

ChatGPT said:

TOTO TC300-L1 — Uses

  1. TC300-L1 is a TOTO fastener, bolt & washer set used for fixing a compatible TOTO toilet seat/cover assembly to the toilet bowl. A TOTO spare-parts listing specifically identifies TC300-L1 as “Fastner, Bolt & Washer.”
  2. Be Chennai
  3. +1

What it does

  • Fixes the toilet seat/cover to the ceramic bowl.
  • The bolt and washer provide the mechanical clamping between the seat hinge/fixing area and the toilet bowl.
  • It is not the soft-close mechanism.
  • It is not the seat hinge assembly itself.
  • It is not the bolt cap or seat cushion.
  1. For the related TC300/TC301 seat components, the same parts listing identifies:
  • TC301-H1 — Seat & Cover Holder
  • TC300-L1 — Fastener, Bolt & Washer
  • TC301-D1 — Soft Closing Unit Set
  • TC301-E1 — Bolt Cap
  • TC301-E2 — Cover Cushion
  • TC301-E3 — Seat Cushions (4 pcs) B
  • Be Chennai
  1. TOTO's own parts database also lists replacement components applicable to TC300 and TC301, supporting the connection between these seat models and their replacement hardware. T
  2. TOTO パーツショップ
  3. In simple terms: if the TOTO TC300/TC301 toilet seat is loose because the mounting bolt/washer hardware is damaged or missing, TC300-L1 is the fixing hardware used to secure it.
  4. If you give me your toilet seat model number or a photo of the underside of the seat, I can identify exactly where TC300-L1 fits and how it is installed.

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Sep 25th, 2026 1:03 PM

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