Kohler 1B1X Tank Conversion Kit 84499

Weight 3 lbs
Dimensions 15 × 8 × 8 in


“I have been here a few times. And I have found it the most helpful and best place I've been to in this area. They explain to me what I need not what I'm trying to tell them what I want. Would recommend to anybody who needed help and plumbing parts. ”
-Joey F



Protect the warranty on Kohler products, always look for the Kohler GENUINE Parts logo. Kohler GENUINE Parts are designed by Kohler engineers to maintain original product performance and promote product longevity.

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.

Kohler Tank Conversion Kit


  • Kohler GENUINE Part
  • Compatible with older style one-piece toilets
  • Includes fill valve, flush valve, flapper and gaskets – all components in the tank
  • Made with premium materials for enhanced durability






Related Documents


1B1X Tank Conversion Kit Instructions


K-3401 Parts Breakdown


K-3385 Parts Breakdown


Customer submitted image of the toilet this kit rebuilds. 


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.



Weight 3 lbs
Dimensions 15 × 8 × 8 in


“Sent a picture of the piece I needed for my leaking shower cartridge and was given the correct piece within minutes! Made my life so much easier! ”
-Alexander P