Kitchen faucets get a lot of use, and even an elegant and well-made faucet like the Kohler Revival will eventually begin to wear, causing water to leak. Dripping faucets can waste a lot of water and run up utility bills. When the faucet begins to drip water from the spout or around the handles, repair it as soon as possible.
Turn off the water supply to the faucet.
Remove the handles. Grasp the lever part of the handle with one hand and the bell portion of the handle with the other. Twist the bell portion counterclockwise while holding the lever handle in place. The handle should unscrew so you can remove it. If the handle is struck and won’t turn, use a strap wrench around the bell portion to initially loosen it, and then spin the handle off by hand. Pick up the round escutcheon that was under the handle and set it aside.
Use an adjustable wrench or pliers to remove the retaining nut that that secures the cartridge. Gently use pliers to remove the cartridge. It may be necessary to carefully twist the cartridge back and forth a little to loosen it from the faucet base.
Place a thin film of plumber faucet lube around the outside of the replacement cartridge. Insert the new cartridge into the faucet base, and twist to lock it into place. Using your fingers, replace the cartridge-retaining nut, twisting until it's snug; then use a wrench or pliers to further tighten it about another 1/2 turn until it feels tight. Replace the escutcheon. Place a thin film of faucet lube onto the thread of the faucet base where the handle screws on. This lube will make the removal of the handles in the future much easier. Screw the faucet handles back into place.
Turn the water supply to the faucet back on. Turn the faucet on and off to check for proper operation.