Kohler Tank Gasket
- Kohler GENUINE Part
- Made with durable material for a long lasting seal
- Fits Cayuga toilet K-3440
- Fits Wellworth Highline Trylon Barlow K-3510 K-3512 K-3514
51531
Kohler 51531 Tank Gasket
WHAT OUR CUSTOMERS SAY…
“Noel's Plumbing Supply found this place on Google maps. In and out service. The person I was speaking to the desk offered me a selection knew exactly what I needed price was really reasonable. You don't know how much it means to a homeowner to be able to come in without any run around trying to sell you something you don't need. I recommend this establishment to all my family and friends. ”
-Steve C
$25.17
The Kohler 51531 (or K-51531) is a genuine OEM toilet tank gasket, designed to create a watertight seal between the toilet tank and the bowl. It is a replacement part used for plumbing repairs in various Kohler toilet models, including the Wellworth and Water-Guard series.
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.
Common questions about this product
Is this item the original manufacturer's recommended replacement part?
Yes, this is the OEM recommended part.
Is this the correct item for my application?
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…
“I was very happy with Noel’s Plumbing. I was searching for a fairly rare part and saw it listed on their website. After placing my order, I was informed that the item was actually on backorder. Noel’s Plumbing was upfront and honest right away, letting me know it might take some time to arrive.
Throughout the wait, they consistently kept me updated, which I really appreciated. When the part finally came in, they shipped it out immediately. It arrived exactly as described and was precisely what I needed.
Excellent communication, honesty, and follow-through. Thank you, Noel’s Plumbing! ”
-Dave F.
04/04/2026