| Model numbers | Type | Valve | Handle |
|---|---|---|---|
| K-394-4, K-394-4-CP, K-394-4-BN | Bathroom, two handle widespread | GP1092204 (hot) and GP1092203 (cold), UltraGlide | Two lever, preassembled on the valves |
The Devonshire widespread uses Kohler’s UltraGlide ceramic valves, introduced in 2011. They are not the older GP77005 and GP77006, and the two families are not an upgrade path for each other.
Before you start. Shut off the two small valves under the sink by turning them clockwise, then open the faucet to confirm the water has stopped. Plug the drain so small parts cannot fall in. You will need a screwdriver, an adjustable wrench or pliers, and for most handles a hex key (an Allen wrench, sold as an inexpensive set at any hardware store). If a shutoff valve will not turn or starts to drip, or anything is corroded and will not loosen with moderate force, stop and see when to call a plumber. New to this? Start here explains the parts and tools in plain language.
Not sure this is your faucet? See how to identify your Kohler cartridge without a model number, or how to find your brand and model.
Taking it apart
- Unscrew the bonnet under the lever and lift the handle off.
- Loosen the valve with a 5/8 inch deep socket or adjustable wrench, counterclockwise.
- Thread the new valve in and tighten an eighth to a quarter turn past hand tight.
Repairs for this faucet
- Drip from the spout: replace the hot or cold valve on the side that drips. UltraGlide valves cannot be converted between sides; buy hot for hot and cold for cold.
- Handle loose: tighten the bonnet
- Hot and cold reversed: swap the supply lines
- Low pressure or spray head problems: Kohler’s elimination test
Parts
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