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The LARSEN SUPPLY COMPANY LAR03-1785 is a stem extension designed for use with Kohler faucets. Stem extensions are used to adapt the valve stem to fit thicker wall or deck installations where the standard stem length falls short. This part is typically installed by licensed plumbers or experienced service technicians during faucet repair or rough-in work where additional stem reach is required to properly seat the handle and packing assembly.
This stem extension is suited for residential plumbing applications where Kohler faucet stems need to be lengthened to accommodate non-standard installation depths. Common scenarios include thick countertop installations, wall-mount conversions, or retrofit work on existing rough-in valves. It is a direct-fit replacement component intended to restore proper faucet function without requiring a full valve replacement.
Designed as an OEM-style replacement stem extension for Kohler faucets. Refer to the Lasco cross-reference guide or your Kohler service documentation to confirm fitment for your specific model before installation.
Installation should be performed by a licensed plumber or qualified service technician. Shut off the water supply at the isolation valve or main shutoff before disassembling the faucet. Standard plumbing hand tools are sufficient for most stem extension installations. Follow applicable IPC and local plumbing code requirements when performing faucet service work.
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