Home > Manufacturers > Kohler > Toilet Repair Parts > Toilet Tank Reference Guide
Find the correct Kohler toilet parts for any model with our Kohler Toilet Tank Reference Guide.

On almost every Kohler toilet is a "K-xxxx" number that identifies the model. This number is usually stamped inside the tank or on under the lid. Locate the "K-" model number of your Kohler toilet, then browse below for breakdowns and part numbers.

  • All Kohler Toilet Models by Number

    Find Kohler toilet parts by tank model number. Browse our complete list of Kohler toilet tank numbers and select your model to view parts. Kohler toilet tank numbers can be found under the lid or inside the tank.
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  • Canister (Single-Flush) One-Piece Toilets

    Kohler Replacement Parts for Canister (Single-Flush) One-Piece Toilets

    If you have a single-flush canister toilet, you will not see a flapper in the tank but a cylinder-shaped flush valve. These toilets do not use a flapper, but a seal. If your toilet is leaking water into the bowl, the seal needs to be replaced, not the canister.

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  • Canister (Single-Flush) Two-Piece Toilets

    Kohler Replacement Parts for Canister (Single-Flush) Two-Piece Toilets

    If you have a single-flush canister toilet, you will not see a flapper in the tank but a cylinder-shaped flush valve. These toilets do not use a flapper, but a seal. If your toilet is leaking water into the bowl, the seal needs to be replaced, not the canister.

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  • Canister (Dual-Flush) One- and Two-Piece Toilets

    Kohler Replacement Parts for Canister (Dual-Flush) One- and Two-Piece Toilets

    If you have a dual-flush toilet, you will see a two-button actuator on the top or a two-part trip lever on the side, rather than a standard trip lever. Inside the tank you will not see a flapper but a cylinder-shaped flush valve. These toilets do not use a flapper, but a seal. If your toilet is leaking water into the bowl, the seal needs to be replaced, not the canister.

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  • 2-Inch Flapper One-Piece Toilets

    Kohler Replacement Parts for 2-Inch Flapper One-Piece Toilets

    Toilets manufactured prior to 2004 most commonly have a 2-inch flapper.

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  • 2-Inch Flapper Two-Piece Toilets

    Kohler Replacement Parts for 2-Inch Flapper Two-Piece Toilets

    Toilets manufactured prior to 2004 most commonly have a 2-inch flapper. All two-piece toilets that have a 2-inch flapper use fill valve GP1138930.

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  • 3-1/4-Inch Flapper One- and Two-Piece Toilets

    Kohler Replacement Parts for 3-1/4-Inch Flapper One- and Two-Piece Toilets

    Toilets that have a 3¼-inch flapper are Class Five® toilets. All Class Five toilets use fill valve GP1083167.

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  • Touchless Flush Toilets

    Kohler Replacement Parts for Touchless Flush Toilets

    The KOHLER touchless toilet is the no-touch flush. Just hold your hand over the tank sensor to activate the flush. No handle to touch means fewer germs to pick up or leave behind.

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  • Numi® / Power Lite® One-Piece Toilets

    Kohler Replacement Parts for Numi® / Power Lite® One-Piece Toilets
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  • Pressure Lite® One- and Two-Piece Toilets

    Kohler Replacement Parts for Pressure Lite® One- and Two-Piece Toilets

    If you have a Pressure Lite toilet, you will see a holding vessel within the tank.

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