Mgr77757wb Parts

The Holder Orifice is an OEM component specifically designed for Whirlpool ranges. Located inside the gas burner unit, the orifice holds the brass valve that regulates gas flow to each burner flame. Its sturdy construction and precisely sized opening ensure a stable, controlled fuel supply.  

Causes of a bad holder orifice can include mineral deposits building over time which diminish sizing accuracy or cracks developing that cause leaks.

Symptoms of a bad holder orifice include:  

• Burners emitting unstable or sporadic flames of abnormal sizes
• Inability to efficiently ignite or achieve proper burner settings  
• Strong gas or fuel smells coming from the range top
• Discolored or corroded brass components

This OEM Whirlpool part is also compatible with KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore cooking appliances. 

Color: White

This replacement burner box routes gas and supports the burner components under a gas range cooktop, restoring proper burner alignment and operation. It helps ensure stable flame delivery and safe fuel flow to the surface burner assembly. What it does:

• Houses and positions the burner, orifice and ignition components for proper combustion
• Channels gas from the manifold to the surface burner for consistent flame
• Helps prevent gas leaks by securing fittings and seals in the burner area
• Addresses symptoms such as uneven flames, burner misalignment, or gas smell near the cooktop

• One burner box assembly

• Turn off gas supply and disconnect power before servicing; work only if qualified
• Inspect gaskets, fittings and orifice for wear and replace as needed
• Verify proper seating and alignment of the burner and igniter during reassembly
• Test for leaks with a soap solution and restore gas/electrical connections before normal use

Color: Stainless door panel w/black glass

Color: Stainless