Tapco 540013 Flush Valve 4 Inch Top Chain

Product Description

The TAPCO 540013 is a 4-inch flapper-style flush valve with top chain, designed as a replacement component for American Standard toilet tank assemblies. This valve controls the release of water from the tank into the bowl during a flush cycle, then seals the tank opening to allow refill. Licensed plumbers and experienced service technicians install this part during routine toilet repair or when an existing flush valve fails to seat properly, resulting in continuous running or incomplete flushing.

This flush valve is suited for residential toilet tank repair applications. It is designed to replace the original flush valve in American Standard toilet models that use a 4-inch valve seat configuration. The included top chain connects the flush valve flapper to the toilet handle arm, providing the mechanical linkage needed for standard flush operation. Installation is typically performed during routine plumbing service calls or as part of a tank rebuild.

Key Features

• 4-inch valve size for high-volume flush performance
• Top chain included for direct connection to flush handle arm
• OEM-style replacement geometry for American Standard tank assemblies
• Compatible with standard tank configurations requiring a 4-inch seat diameter

Compatibility

Designed as an OEM-style replacement flush valve for American Standard toilet tank assemblies requiring a 4-inch valve seat configuration.

Installation Notes

Installation should be performed by a licensed plumber or qualified service technician. Before beginning, shut off the water supply at the angle stop valve below the tank and flush to drain remaining water. Follow applicable IPC guidelines for fixture repair. Do not overtighten the valve locknut against the tank base, as cracking the porcelain is a common installation error.

Technical Specifications

• Valve Size: 4 inches
• Chain Type: Top chain

Standard Information

• Brand: TAPCO
• Manufacturer Part Number: 540013