What are the specs for this Furnace Fitting?

The correct replacement for Goodman model DMS81405DNA — 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 DMS81405DNA — B1392139.

What symptoms indicate I need a new furnace fitting?

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

Is this furnace fitting 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 Sight Glass View Port Bushing for DMS81405DNA — B1392139

Name: OEM Goodman Sight Glass View Port Bushing for DMS81405DNA — B1392139
Brand: Goodman
SKU: GOODMAN-9639
Price: 0.85 USD
Availability: InStock

SKU: GOODMAN-9639 Brand: Goodman

$0.85 $1.15

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Goodman B1392139 View Port Bushing

The Goodman B1392139 is the factory-original view-port bushing (sight-glass grommet) for the DMS81405DNA furnace. It seats in the burner-compartment panel to create the flame-observation window, letting you visually check burner ignition and flame quality while maintaining a proper seal on the combustion enclosure. A missing or brittle bushing can allow air leakage around the port and let the sight glass rattle loose.

Specifications

Part number: B1392139
Type: View port / sight-glass bushing (grommet)
Material: Heat-resistant molded polymer
Fits: Goodman DMS81405DNA furnace burner panel
Function: Retains and seals the flame-viewing window
Brand: Goodman OEM

OEM vs. Generic

This genuine Goodman OEM bushing is molded to the exact port diameter and uses a heat-rated compound suited to burner-compartment temperatures. Generic grommets may not seal correctly or can deform near the burners. At this price point, OEM is the obvious choice for a correct, lasting fit.

Installation Difficulty

Very Easy (1/5). With power off, press the old bushing out of the panel and snap the new one into place — no tools required. Takes just a couple of minutes. Ideal to add to any furnace service or burner-panel repair.

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 Sight Glass View Por...

$0.85

Frequently Asked Questions

Does this Furnace Fitting fit my Goodman DMS81405DNA — B1392139?

Yes. This is the factory-specified OEM furnace fitting for the Goodman DMS81405DNA — 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 furnace fitting on my Goodman DMS81405DNA — 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 furnace fitting?

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

Is this furnace fitting 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 furnace fitting?

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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