Kohler K-GP51487 Tank Bolt Assembly Kit Gasket

chat iconWHAT OUR CUSTOMERS SAY…

“I spent the balance of 3 days looking locallyfor a replacement head for our Kitchen sink...only to find these guys with an exact fit and finish and lower than market pricing...I immediately ordered (an awesome website with smooth cart checkout). 20 minutes later I find a blown out gasket/ring that I was able to replace, and avoid having to replace entire spray head. I text there support line ( while the store was closed!) Requesting the order to be canceled. Within minutes and without hesitation or questions they had refunded my card and canceled the order. They have one of the largest online inventories, notably stocking harder to locate stuff and boasting a separate text line dedicated to recieve customer pics of parts/gear to ensure we are getting exactly what we need. Enough said. Bring your future plumbing problems/needs here and trust you will be taken care of...I know I will... @ Noels, thanks for continuing a tradition of honorable business practice, in a world that is littered with allot less... ”
-John M.
03/14/2026

$25.17

 

The Kohler K-GP51487 is a genuine service part designed for most two-piece toilets. It is a complete tank-to-bowl assembly kit used to create a leak-free seal between the toilet tank and the bowl.

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: 12705A Category: Tag:

Stop annoying toilet leaks and restore your bathroom’s efficiency with the Kohler K-GP51487 Genuine Part Tank Gasket Kit. Engineered specifically for most Kohler 2-piece toilets, this kit provides a secure, watertight seal between the tank and the bowl.

 

K-GP51487

 

  • Kohler GENUINE Part
  • For most two-piece toilets
  • Includes bolts, gaskets, washers, nuts and screws
  • Gaskets are made with superior material to ensure a proper seal

 

Related Documents

 

K-3510 Toilet Parts Breakdown

 

Customer submitted images. 

 

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…

“You guys are awesome. FAST, FAST delivery. Just recd product. ”
-Kathy E.
01/24/2024