Upgrade Parts for Kohler 77923 Fairfax Handle Insert — directfit replacement part compatible with Kohler Fairfax handle assemblies. Why this part matters Restores handle function quickly and affordably without replacing the entire faucet or trim. Solves common problems such as loose, worn, or slipping handle inserts that cause poor control or water leaks. Provides a precise fit for Kohler Fairfax handles to preserve original look and operation. Key benefits Compatibility: Made specifically for Kohler model 77923 (Fairfax) handle insert applications. Ease of use: Simple, straightforward replacement that can be installed in minutes with common household tools. Costeffective : Replaces a single worn component rather than the whole handle or valve, saving time and money. Reliable operation: Returns smooth turning and secure seating to the handle assembly, improving performance and user experience. Key attributes Functionality: Replacement insert for the Fairfax handle assembly; restores correct engagement between handle and valve cartridge. Compatibility: Intended for Kohler Fairfax handles bearing model number 77923. Size: Designed to match the original Kohler insert dimensions so it fits the existing handle and trim without modification. Material: Manufactured to meet the same durability and finish characteristics as the original insert to ensure consistent appearance and service life. Performance: Restores secure fit and smooth operation, maintaining the intended handle travel and control. Typical applications / use cases Home bathroom : a worn Fairfax handle insert to stop slipping or improve handle feel on a bathroom sink or tub/shower control. Maintenance and facility management: Keep as a spare part for routine maintenance in rental properties, hotels, or multiunit buildings to minimize downtime. Partial refurbishment during remodel: Refresh faucet operation and appearance without buying trim or valve bodies when updating other bathroom fixtures. Installation and tips Designed for direct replacement into the Fairfax handle; follow Kohler's removal steps for the existing insert and install the part in the same orientation. Verify model number 77923 on your handle assembly to confirm compatibility before installation. If uncertain, consult Kohler documentation or a qualified plumber to ensure correct fit and torque during reassembly. Compatibility note Specifically intended for use with Kohler Fairfax handle assemblies matching model 77923. Do not substitute for other Kohler models unless they share the same insert specification.