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Small black diaphragm assembly made of metal and plastic

Kohler

Kohler K-1232366 Diaphragm Assembly Black Metal Plastic bathware

SKU CH-QRKC-HX1E6

A black diaphragm assembly made from metal and plastic for toilet maintenance

  • Product colorBlack
  • Genuine Kohler replacement ensures reliable toilet performance
  • Black finish coordinates with matching bathroom fixtures
  • Durable metal and plastic construction resists wear
  • Diaphragm assembly restores proper flush valve operation
  • Listed by manufacturer since June 14 2022

Kohler Diaphragm Assembly Black

This Kohler K-1232366 diaphragm assembly is a replacement component for compatible toilet flush valves. It combines black metal and plastic construction to restore proper flushing function in residential and commercial bathrooms.

Verify Your Toilet Model First

Confirm the exact Kohler toilet model and flush valve design before ordering this diaphragm assembly. Cross-reference the manufacturer parts list to ensure the K-1232366 matches the required specification for your installation.

Replaces Worn Internal Seal

This part upgrades a deteriorated diaphragm that causes weak flushes, continuous running water or incomplete tank refill. The improvement is worthwhile when the existing seal no longer holds pressure or shows visible cracking after extended service.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 72% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameKOHLER
Product colorBlack
Product typeOther

Questions about this item

Does the K-1232366 diaphragm assembly include any mounting hardware or seals, or must they be purchased separately?

The assembly is supplied as a single black metal and plastic diaphragm unit; mounting hardware and additional seals are not included and must be sourced separately.

How do I confirm the K-1232366 is the correct version for my toilet model?

Match the K-1232366 part number to the service-parts list for your specific Kohler toilet; the black colour and metal-plastic construction identify this exact assembly.

What does the black metal-and-plastic construction mean for durability inside the tank?

The metal frame resists deformation under water pressure while the black plastic diaphragm provides a flexible seal that withstands chlorine exposure in normal toilet tanks.

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