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Weber manifold valve assembly, brass body with control knob and gas inlet fitting

weber

weber 79173 manifold valve assembly NG 4.5in sum 620 '12 BB appliance part

SKU CH-T13Q-54NXS

Manifold valve assembly for natural-gas Weber grills, 4.5 in. sum 620 specification, fits eight listed models

  • Sold asEach
  • Product typeGrills & Accessories
  • Genuine Weber replacement ensures reliable grill performance
  • Manifold valve assembly controls natural gas flow precisely
  • 5 inch sum 620 specification matches original equipment
  • Compatible with eight Weber grill models listed
  • New condition guarantees factory-quality installation readiness

Weber manifold valve assembly NG 4.5in

This genuine Weber part replaces the manifold valve assembly on compatible gas grills. It carries part number 79173 and is supplied new as a single unit. The component controls gas flow to the burners for consistent heating.

Fits eight Weber grill models listed

Owners of models 1851001, 91850001, 97421001, 7420001, 7421001, 97420001, 91851001 or 1850001 can use this assembly. Buyers with other grill brands or unlisted Weber models should verify compatibility before ordering.

NG 4.5in sum 620 12 BB designation

The NG 4.5in sum 620 12 BB marking identifies the exact valve specification required by the listed grills. Matching this designation to the original part ensures correct fit and function.

How it compares

Measured against everything we stock in Replacement Grill & Appliance Parts, at today’s prices. Recalculated every night.

Price $259.99
Pricier than about 92% of the 1,446 comparable items (median $36.99).

Specifications

Product
Brand nameWeber
Part numberWEB79173
Product typeGrills & Accessories

Questions about this item

Will the manifold valve assembly require periodic cleaning or eventual replacement of internal seals?

As a new Weber 79173 manifold valve assembly, it installs ready for service; follow the grill manufacturer's routine inspection schedule for gas components to determine when seals or the valve itself may need replacement.

What is the first limitation encountered during extended high-heat grilling sessions?

The assembly is rated for natural gas at the 4.5 in sum 620 specification; sustained operation beyond the grill's designed BTU output or gas pressure limits will be the primary constraint.

Does the valve produce noticeable noise or heat when the grill runs all day?

The manifold valve assembly operates silently as a mechanical gas control; any heat felt at the control panel is normal conduction from the grill body, not generated by the valve itself.

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