American Plumbing Partsmaster R1846-R Ceramic Faucet Stem Hot

Product Description

The AMERICAN PLUMBING PARTSMASTER R1846-R is a ceramic hot-side faucet stem designed as a direct replacement for compatible Speakman faucet valves. Measuring 2.38 inches in length with a 20-point broach pattern, this stem provides a positive, wobble-free seat in the handle socket. Ceramic disc stems deliver smoother quarter-turn or multi-turn operation compared to traditional rubber-seat stems and resist corrosion and wear under repeated use. Plumbers and faucet service technicians rely on stems like this to restore proper hot-water shutoff and flow control without replacing the entire valve body.

This stem is suited for residential and light commercial plumbing applications where Speakman faucet valves require hot-side stem replacement. Typical install scenarios include lavatory faucets, service sink faucets, and shower valves that have developed drip or handle looseness due to a worn or cracked stem. The 20-point broach specification is critical for proper handle fit - confirm the broach count on the existing stem before ordering.

Key Features

• Ceramic construction for extended service life and smooth operation
• 2.38-inch stem length for correct seating depth in compatible valve bodies
• 20-point broach pattern ensures secure, play-free handle attachment
• Hot-side configuration with appropriate seat geometry for hot-water service
• Direct replacement design minimizes valve body disassembly time

Compatibility

Designed as an OEM-style replacement stem for Speakman faucet valves requiring a hot-side ceramic stem with a 20-point broach and 2.38-inch length. Confirm stem length, broach count, and thread specification against the original part before installation.

Installation Notes

Shut off the hot-water supply at the fixture stop valve or at the main before removing the old stem. A licensed plumber should verify local plumbing code requirements, including those referenced in the IPC, before proceeding. Use the correct stem socket or faucet-seat wrench to avoid damage to the valve body threads. Do not overtighten the stem into the packing nut, as ceramic stems can crack under excessive torque.