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Xylem 42S-HD #42 Series Head Mechanism with Snap Switch

Manufacturer

Picture for manufacturer Xylem

Part Number

42S-HD
8 reviews
Sale Price

$961.94

In Stock (6)

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Usually delivered within 2 days

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Xylem-McDonnell & Miller 42S-HD is a #42 head mechanism with snap switch designed as a replacement part for Series 42S low water cut-off and pump controller systems in boilers and heating equipment. The snap switch acts as a temperature sensor that activates when ambient temperature reaches a predetermined level, initiating actions to regulate temperature and maintain system control.

Key Features:

  • Complete head mechanism assembly weighing 7.5 lbs
  • Includes gasket and mounting bolts for installation
  • Enhances overall system efficiency and temperature control in residential and commercial HVAC systems
  • Compatible with McDonnell & Miller Series 42S controllers
  • Snap switch design for reliable temperature monitoring

Built from high-quality materials for durability and designed for easy installation and maintenance. This genuine Xylem replacement part ensures proper operation and precise temperature control in boiler heating systems.

No complaints.

Good prices and product availability.

I ordered several ignition parts and everything was shipped together. Received a tracking number and was surprised on how fast I received the parts. Great service, competitive prices !

There were quite a few spots where tge paint was chipped and also where it has came off due to the box being opened when I received it. I had to buy $25 in spray paint and primer to remedy this.

website issues at check out - although it could have been me

Great experience!!

Quick and easy

Quick and easy ordering

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