Gerber 98-688, Hot Stem and Bonnet Assembly for Kitchen and Bathroom Faucets

Gerber® 98-688 Hot Stem and Bonnet Assembly – Replacement Component for Two-Handle Faucets

The Gerber® 98-688 is an OEM replacement hot-side stem and bonnet assembly designed for select Gerber two-handle kitchen, lavatory, and tub/shower faucets. Engineered to control hot water flow and eliminate internal leakage, this component restores functionality in worn or leaking valve configurations.

Constructed from corrosion-resistant metal, the assembly includes a bonnet cap and stem designed to fit specific Gerber valve bodies. It is intended for use with corresponding cold-side components when servicing both handles in dual-valve systems.

Product Features

• Application: Hot water side of Gerber two-handle faucet systems
• Material: All-metal body and bonnet for long-term durability
• Function: Controls water flow and seals against leaks at the valve seat
• Design: Compatible with designated Gerber faucet models requiring OEM stem assemblies

Technical Specifications

• Manufacturer: Gerber®
• Part Number: 98-688
• Component Type: Stem and bonnet assembly (hot side)
• Installation Location: Kitchen, lavatory, or tub/shower two-handle faucet
• Compatibility: Fits select Gerber round-handle faucet models

Installation Guidelines

Remove existing stem assembly using standard plumbing tools. Inspect and clean the valve seat before installing the replacement. Apply thread sealant as needed. Proper orientation of internal washers is critical to ensure leak-free operation. This component is side-specific and intended for hot water control only. Use Gerber 98-689 for cold-side applications.

Use Case

Suited for repair and maintenance applications in residential or light commercial faucet installations. Ideal for service calls involving water control issues or internal leaks in Gerber two-handle fixtures.