Goodman b4089955 Spud Orifice Size 55 Burner Orifice

Product Description

The GOODMAN b4089955 is a size 55 spud orifice designed for use in gas furnace burner assemblies. This small but critical component meters the flow of gas into the burner, directly affecting combustion performance and efficiency. Manufactured in the United States by Lincoln Brass - Mueller, it measures 0.437 inches deep, 0.687 inches tall, and 0.6875 inches wide. Licensed HVAC technicians and gas appliance service professionals install this orifice during burner servicing, fuel conversion, or component replacement procedures.

This orifice is suited for residential and light commercial gas furnace applications where a size 55 spud orifice is specified. It is commonly installed during routine burner maintenance, gas valve service, or when converting equipment between fuel types as part of a larger conversion kit assembly. Consult the equipment manufacturer documentation to confirm the correct orifice size before installation.

Key Features

• Size 55 orifice rating for precise gas metering at the burner
• Spud-style design for direct installation into burner orifice ports
• Compact form factor: 0.437 inches deep by 0.687 inches tall by 0.6875 inches wide
• Manufactured by Lincoln Brass - Mueller, a recognized gas component supplier
• Country of origin: United States
• Single-piece pack quantity for individual replacement or service use

Compatibility

Designed as an OEM-style replacement spud orifice for gas furnace burner assemblies requiring a size 55 orifice. Verify orifice size and thread specifications against the original equipment documentation before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified gas appliance service professional in accordance with local codes and IFGC requirements. Shut off the gas supply and disconnect power to the appliance before removing or installing any burner components. Use the appropriate orifice wrench or open-end wrench to avoid damaging the orifice seat or spud threads. Confirm the orifice size matches the fuel type and appliance rating before placing the unit back in service.

Technical Specifications

• Orifice Size: 55
• Unit Depth: 0.437 inches
• Unit Height: 0.687 inches
• Unit Width: 0.6875 inches
• Unit Weight: 6 pounds
• Product Class: Conversion Kits and Orifices
• Country of Origin: United States
• Manufacturer: Lincoln Brass - Mueller

Standard Information

• Brand: GOODMAN
• Manufacturer Part Number: b4089955