Kohler Silent Fill Toilet Valve Kit K-GP1138930

“American Standard 3280.040-0070A Champion 4 Flush Valve for 1 Piece Toilets” has been added to your cart. View cart

Grey and black plastic fill valve with white cap and black fill hose.

Kohler Silent Fill Toilet Valve Kit K-GP1138930 - Image 2

WHAT OUR CUSTOMERS SAY…

“They had my part shipped the same day. I mistakenly checked that I would pick the part up at the store and they fixed it in minutes. ”

-Michael F.

01/04/2026

$29.47

The Kohler K-GP1138930 is a genuine Kohler Silent Fill Toilet Valve Kit used as a replacement part for many Kohler toilets. It is designed for quiet operation and features an adjustable height for compatibility with various tank sizes.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, noelsplumbingsupply@fuse.net, or via the text widget on this screen.

SKU: 91060297 Category: Toilet Flushvalves Tag: Kohler

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Kohler Silent Fill Toilet Valve Kit

K-GP113890

Replaces Kohler 1060297

Kohler GENUINE Part
Silent Fill provides a gracious experience by filling the tank quietly
Multiple fill-rate inserts are provided to optimize performance and conserve water
Adjustable to accommodate any height
Confirm shank color to determine correct Part; if grey, use this Part and if black, use GP1083167
Cap color may vary

Related Documents

K-GP113890 Service Kit Instructions

Common questions about this product

Yes, this is the OEM recommended part.

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

We will make sure you have the right part.

WHAT OUR CUSTOMERS SAY…

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-Steve C