Weil-Mclain 321811125 Boiler Section Assembly (EA) 321-811-125

Product Description

The Weil-McLain 321811125 is a boiler section assembly for Weil-McLain EG series boilers and EG-50/EG-55 models. It is a cast iron section configured without a tankless opening that forms part of the heat exchanger waterway and steam chamber. Intended for natural gas-fired units, the section supports water and steam applications and aligns with manufacturer-approved nipples and sealing compounds. Installation orientation can be left or right depending on manifold configuration.

• Compatible with Weil-McLain EG Series 1–5 and EG-50/EG-55; fits EG and P-EG 50/55 assemblies.
• Cast iron section assembly without tankless opening; intended for natural gas use in water and steam applications.
• Functions as a heat exchanger waterway and steam chamber; designed for gasket fitment, nipple insertion, and left/right manifold orientation.

Product Highlights

Cast iron replacement heat-exchanger section for Weil-McLain EG/PEG 50–55 boilers; no tankless opening; for natural gas water and steam systems.

Product Information

Standard Information

• Brand: WEIL-MCLAIN
• Manufacturer Part Number: 321811125
• Country of Origin: United States

Technical Specifications

• Manufacturer: Weil-McLain
• Manufacturer Part Number: 321-811-125
• Supplier Part Number: 321811125
• Brand: Weil-McLain
• Product Name: Boiler Section Assembly
• Item Type: Section Assembly
• Material: Cast iron
• Configuration: Without tankless opening
• Compatible Models: EG Series 1-5; EG-50; EG-55; PEG-50; PEG-55
• Intended Use / Compatibility: For use with EG, P-EG 50 and 55 series boilers
• Fuel Type: Natural Gas
• Application: Water and steam
• Function: Heat exchanger section / waterway and steam chamber
• Orientation: Left or right (depending on manifold configuration)
• Unit of Measure: EA
• UPC: 672619163744
• UNSPSC Code: 40101851
• Product SKU: 235789
• Item Number: WMC321-811-125
• Country of Origin: United States