The Weil McLain 381-356-577 is an OEM boiler temperature sensor engineered for precise water temperature monitoring in Weil McLain hydronic heating systems. Featuring a 1/2″ NPT threaded connection for straightforward installation into standard boiler tappings, this sensor delivers a 12K ohm resistance output that integrates directly with compatible Weil McLain boiler controls to support accurate temperature regulation and efficient system operation.
Key Features
- OEM Weil McLain replacement temperature sensor for reliable, factory-matched performance
- 1/2″ NPT threaded fitting for easy installation into standard boiler tappings
- 12K ohm resistance output for accurate temperature signal transmission to boiler controls
- Designed for use in hydronic heating and hot water boiler applications
- Ensures proper boiler control response for safe and efficient system operation
- Direct OEM replacement — no modifications required
Specifications
- SKU: 381-356-577
- Brand: Weil McLain
- Connection Type: 1/2″ NPT
- Resistance: 12K ohms
- Application: Boiler water temperature sensing
Application
This sensor is a direct OEM replacement part for Weil McLain boilers, providing the control system with accurate temperature feedback to maintain optimal boiler operation. It is ideal for HVAC technicians and contractors performing routine maintenance or component replacement on Weil McLain hydronic heating systems.
