How do I find the model number of my Kohler toilet?

KOHLER plastic toilet seats have a KOHLER logo molded into the bottom of the toilet seat ring. As of October 2019, most KOHLER plastic toilet seats have the model number and color code printed on the underside of the toilet seat hinge. The seat must be removed from the toilet to view the model number.

Are most toilets 2 or 3?

Most toilets will have a 2-inch drain or a 3-inch drain. Standard flappers of both types are available for these common sizes, though flexible 3-inch flappers can sometimes be difficult to find. To measure for the correct size, you will need to lift or remove your current flapper.

How do you tell if toilet flapper is 2 inch or 3 inch?

Look at the flush valve drain opening at the bottom of your tank.

If the opening looks about the size of a baseball or orange, you need a 2″ flapper.
If the opening looks about the size of a softball or grapefruit, you need a 3″ flapper.

Where do I find the part numbers on my Kohler toilet?

The replacement part numbers for the float/fill valve, flush valve, tank gasket and flush ball/flapper are listed for each toilet. To view all the service parts for your toilet, visit for the expanded service parts pages. Part numbers are imprinted on the underside of the tank lid.

What do you call a standard Kohler toilet tank?

Use only KOHLER Genuine Parts to avoid property damage and achieve optimal performance. The phrase “Standard Toilets” applies to floor-mounted toilets with standard flush and fill valves and dual flush models. Refer to In-Wall Toilet Tank Troubleshooting if you have an in-wall toilet tank.

What do you need to know about Kohler k-3402 parts?

Installation Kits Log Lighter and Accessories Roof Vents RV and Mobile Home Repair Parts Shower Drain Shower Heads and Accessories Sink Strainer Assemblies and Parts Sinks Sink Repair Soap Lotion Dispensers Toilet Repair Flappers Toilet Repair Parts Toilet Seats and Repair Parts Plumbing Tools Valves and Accessories

Where is the Flapper on a Kohler dual flush toilet?

If you have a Dual Flush toilet, you will see a two-button actuator on top of the toilet rather than a trip lever. Inside the tank you will not see a flapper but a cylinder-shaped flush valve. These toilets do not use a flapper, but a seal. If your toilet is leaking water into the bowl, the seal needs to be replaced, not the flush valve. 5

What kind of gasket do I need for Kohler toilet?

The GP83888 flush valve gasket must be installed with the larger flat surface facing toward the tank (opposite of the way the red gasket is shown on the flush valve.) Please Note: Large O-ring may fit tight and may need to be slightly stretched out using both hands (no tools) in order to be installed.

How do I find the model number of my Kohler toilet?