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Kohler 1112258 Tank Plate

Black plastic tank plate with mounting slots.
Kohler 1112258 Tank Plate - Image 2

chat iconWHAT 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

$18.47

 

The Kohler 1112258 is a genuine Kohler part designed to be used between the toilet tank and bowl, specifically for models like the Kohler 4166.

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: 12866A Category: Tag:

Kohler 1112258 Toilet Tank Plate is a genuine OEM replacement component designed to fit securely between the toilet tank and the bowl. It serves as a structural reinforcement layer specifically engineered for Kohler toilet tank model 4166, replacing the legacy part number 1083108.

 

1112258

 

  • Serves as a mounting or stabilizer plate positioned underneath the tank to ensure a sturdy, leak-free connection to the bowl.
  • This part number (1112258) replaces the older part number (1083108).
  • Engineered to promote product longevity
  • Made with premium materials for enhanced durability

 

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

Is this the correct item for my application? chevron-icon

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.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“Just want to say THANK YOU for your help with this! I couldn't believe the handle arrived Thursday (after ordering Wednesday). I brought it up to my dad's house Friday and just looking at it I didn't think it was going to fit....but it fit perfectly. So appreciative for your expertise and quick shipping! ”
-Ashley K.
02/04/2023