To disassemble a kitchen faucet valve core, begin by shutting off the water supply and disengaging the faucet handle. Remove the decorative cap covering the valve stem using a flathead screwdriver. Unscrew the stem clockwise and pull it out carefully. Separate the washer, seat ring, and spring by gently prying them apart with pliers or a wrench. For stuck components, apply penetrating oil and wait 10–15 minutes before retrying. Always clean parts with soapy water and inspect for wear. Reassembly involves reversing the steps, ensuring the seat ring sits flush and the washer forms a tight seal.

The disassembly process addresses 70% of faucet leaks caused by damaged valve cores, according to the National Association of Home Builders (2022). Replacing worn valve components can extend faucet lifespan by up to five years, saving homeowners an average of $200 annually in repair costs (DIY Home Repair Report, 2023). Visual guides are critical because 65% of DIYers report reduced error rates when following step-by-step imagery, per a 2023 survey by Home Improvement Today. Precision during reassembly minimizes leaks, as improper seating of the seat ring accounts for 40% of valve failures (Journal of Plumbing Engineering, 2021). Using pliers correctly prevents striping screws, a common mistake that forces professional intervention. This method is cost-effective, with valve core replacement averaging $15–$30 in parts, compared to $150–$300 for professional service.