Description
Xylem-McDonnell & Miller 323400 Head Gasket — Package of 10
Keep your McDonnell & Miller 94 and 194 Series low-water cutoff and pump controls operating reliably with the OEM-specified head gasket replacement kit. The 323400 package includes ten (10) Model 92-68 head gaskets, giving service technicians and boiler room professionals a ready supply of genuine replacement seals for scheduled maintenance and emergency repairs alike.
Product Overview
The head gasket provides a critical pressure-tight seal between the control head and the float chamber body on McDonnell & Miller 94 and 194 Series combination low-water cutoff/pump controllers. A compromised or aged gasket can lead to steam or water leaks at the control body joint, resulting in unsafe boiler operation and costly downtime. Replacing the head gasket during routine annual maintenance or at any sign of weeping is a best practice recommended by the manufacturer.
Key Features
- Genuine Xylem-McDonnell & Miller OEM replacement head gasket
- Compatible with 94 and 194 Series low-water cutoff and pump controls
- Model number: 92-68
- Convenient package of 10 gaskets — ideal for stocking service vans and parts rooms
- Ensures a reliable, leak-free seal at the control head joint
- Supports safe, code-compliant boiler operation
- Direct drop-in replacement — no modification required
Compatible Equipment
- McDonnell & Miller 94 Series Low-Water Cutoff / Pump Controllers
- McDonnell & Miller 194 Series Low-Water Cutoff / Pump Controllers
Application
Designed for use on steam boilers in residential, light commercial, and commercial hydronic heating systems. The 94 and 194 Series controls are widely installed across a broad range of steam boiler applications, making this gasket an essential stocking item for HVAC and plumbing contractors who regularly service steam heating systems.
Why Choose OEM Gaskets?
Using genuine Xylem-McDonnell & Miller replacement parts ensures proper fit, material compatibility, and long-term sealing performance. Aftermarket gaskets may not meet the original dimensional or material specifications, potentially leading to premature failure or unsafe conditions.







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