We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Kohler 1056873 piston assembly component new

Kohler

Kohler 1056873 Piston Assembly

SKU CH-K1ZA-6SP7Y

A genuine replacement piston assembly for Kohler kitchen sink faucets, part number 1056873

  • Genuine Kohler replacement ensures reliable faucet operation
  • Part number 1056873 matches original equipment specifications
  • New condition guarantees full service life from installation
  • Listed by manufacturer since 17 June 2021
  • Piston assembly design restores smooth water control

Replacement Piston Assembly

The Kohler 1056873 piston assembly is a genuine replacement component designed for specific Kohler kitchen sink fixtures. It restores proper valve function when the original piston wears or fails. Homeowners and plumbers use this part to fix dripping or inconsistent water flow without replacing the entire faucet body.

Cartridge Service Limits

This piston assembly operates within the mechanical tolerances of the original faucet cartridge design. It cannot compensate for damaged valve seats, corroded housing bores or worn seals elsewhere in the cartridge. If the surrounding brass body is scored or the O-ring grooves are deformed, the new piston will not seal correctly and the leak will persist.

Precision Machined Fit

The component is manufactured to Kohler factory dimensions for a direct press fit into compatible cartridge bodies. No special tools are required beyond those used for standard cartridge removal. The smooth finish resists mineral buildup and allows repeated disassembly for future maintenance. Installers should lubricate O-rings with silicone grease during assembly to prevent pinching.

Highlights

  • Genuine Kohler replacement ensures reliable faucet operation
  • Part number 1056873 matches original equipment specifications
  • New condition guarantees full service life from installation
  • Listed by manufacturer since 17 June 2021
  • Piston assembly design restores smooth water control

Specifications

BrandKOHLER

Questions about this item

Is this piston assembly the correct replacement for my Kohler faucet model?

The part number 1056873 identifies this genuine Kohler piston assembly; check your faucet's service manual to confirm it matches the required component.

What does the piston assembly do inside the faucet?

It controls water flow and mixing by moving within the valve body, and a worn piston often causes drips or temperature fluctuations.

Does this part use a standard connection type for Kohler valves?

It is engineered as a direct-fit component for compatible Kohler valve bodies, matching the original factory interface.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.