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Small brass orifice fitting with silver and gold finish

weber

Weber 42425 ORIFICE S/B GEN NG appliance part

SKU CH-832P-HW2BB

Natural-gas orifice for 45 Weber Genesis Silver and Gold grill models from 2004 to 2007

  • Selling UnitEach
  • TypeGrills & Accessories
  • Genuine Weber replacement orifice for reliable gas flow
  • Fits 45 Genesis Silver and Gold natural-gas models
  • Part number 42425 matches original equipment specifications
  • Compatible with grills manufactured 2004 through 2007
  • New condition ensures clean, undamaged threads for secure installation

Weber Genesis Natural-Gas Orifice

The Weber 42425 orifice is a factory replacement part for Genesis Silver and Gold series grills configured for natural gas. It fits 45 listed model numbers spanning the 2004, 2005 and 2007 model years. Owners of those specific grills use it to restore correct gas flow when the original orifice is worn or damaged.

Natural-Gas Flow Limitation

This orifice is calibrated only for natural-gas supply pressures and cannot be used with propane set-ups. It serves a single burner position on the Genesis 320 platforms, so a full grill overhaul requires one orifice per burner. No adjustment mechanism is built into the part itself.

Upgrade From Worn Brass Orifices

The part replaces the original brass orifice that can enlarge over years of heating cycles, causing yellow flames or uneven heat. The jump is worth it when burner output drops noticeably or when a conversion kit calls for a fresh orifice. It does not adapt propane models to natural gas.

Highlights

  • Genuine Weber replacement orifice for reliable gas flow
  • Fits 45 Genesis Silver and Gold natural-gas models
  • Part number 42425 matches original equipment specifications
  • Compatible with grills manufactured 2004 through 2007
  • New condition ensures clean, undamaged threads for secure installation

Specifications

BrandWeber
Selling UnitEach
Part NumberWEB42425
TypeGrills & Accessories

Questions about this item

Which Weber grill models does orifice part 42425 fit?

It fits 45 Genesis Silver and Gold models from 2004, 2005 and 2007, including the S-320, E-320, EP-320 and ESP-320 natural gas variants.

What does this orifice do once installed in the grill?

It meters the natural gas flow to each burner so the grill produces the correct heat output for Silver and Gold Genesis models.

What connection standard does this orifice use and what does it limit?

It threads into the factory burner valve on Genesis Silver and Gold grills and caps the gas flow to the manufacturer’s specified BTU rate for natural gas.

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