What are the specs for this Bushing?

The correct replacement for Goodman model GMV80704BXBA — B1392139 is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Goodman equipment which lists the model number GMV80704BXBA — B1392139.

What symptoms indicate I need a new bushing?

Common symptoms that indicate you need a new bushing include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

Is this bushing compatible with Bryant or Payne systems too?

Many Goodman parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

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Goodman

OEM Goodman View Port Sight Glass Bushing for GMV80704BXBA — B1392139

Name: OEM Goodman View Port Sight Glass Bushing for GMV80704BXBA — B1392139
Brand: Goodman
SKU: GOODMAN-12638
Price: 6.95 USD
Availability: InStock

SKU: GOODMAN-12638 Brand: Goodman

$6.95 $8.95

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Goodman B1392139 View Port Bushing

The B1392139 is the genuine OEM view port bushing for the Goodman GMV80704BXBA 80% two-stage gas furnace. This bushing snaps into the burner/combustion access panel and holds the sight-glass view port that lets a technician observe the flame during a heating cycle. It also seals the opening so the burner compartment maintains proper draft and combustion air. A cracked, brittle, or missing bushing can let the view port fall out and disturb combustion airflow, so it's worth replacing whenever it shows age.

OEM Part Number: B1392139
Part Type: View port bushing / sight-glass grommet
Fits Model: Goodman GMV80704BXBA (and compatible GMV80 series panels)
Material: High-temperature molded polymer
Application: Burner compartment flame-observation port
Equipment: 80% AFUE gas furnace

OEM vs. Generic

This bushing is molded to the exact panel cutout diameter and temperature rating for the GMV80 burner box. Generic grommets often don't survive the sustained heat near the burner and can shrink or crack. The OEM B1392139 is the low-cost, correct-fit choice for a small but functional sealing part.

Installation Difficulty

Very Easy (1/5). Push out the old bushing and press the new one into the panel opening by hand — no tools required. Under 10 minutes. Power the furnace off before opening the burner compartment.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $75
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

OEM Goodman View Port Sight Glas...

$6.95

Frequently Asked Questions

Does this Bushing fit my Goodman GMV80704BXBA — B1392139?

Yes. This is the factory-specified OEM bushing for the Goodman GMV80704BXBA — B1392139. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the bushing on my Goodman GMV80704BXBA — B1392139?

Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.

What symptoms mean I need a new bushing?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this bushing compatible with Bryant or Payne too?

Many Goodman parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my Goodman bushing?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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