What are the specs for this Fitting?

The correct replacement for Goodman model WFM18140S5DNCB — 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 WFM18140S5DNCB — B1392139.

What symptoms indicate I need a new fitting?

Common symptoms that indicate you need a new 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 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 View Port Bushing for WFM18140S5DNCB — B1392139

Name: OEM Goodman View Port Bushing for WFM18140S5DNCB — B1392139
Brand: Goodman
SKU: GOODMAN-14163
Price: 0.85 USD
Availability: InStock

SKU: GOODMAN-14163 Brand: Goodman

$0.85 $1.15

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Goodman B1392139 View Port Bushing

The B1392139 is a genuine Goodman view-port bushing (sight-glass grommet) that seats into the burner-compartment observation opening on the WFM18140S5DNCB furnace and compatible Goodman/Amana models. This small but important part lets a technician safely view the flame while sealing the cabinet against air leaks and maintaining proper combustion-air separation.

Specifications

Part number: B1392139
Type: View port bushing / sight-glass grommet
Brand: Goodman / Amana OEM
Application: WFM18140S5DNCB and compatible furnaces
Function: Seals observation port, resists heat

OEM vs. Generic

This factory OEM Goodman bushing is molded to the exact port diameter and heat rating. Generic grommets may not seal fully or can degrade near the burner box, allowing air leakage that affects combustion. At this price, there is no reason not to use the correct OEM part.

Installation Difficulty

Very Easy (1/5). Press-fit installation in under 5 minutes — remove the old bushing and snap the new one into the port. No tools typically required. Ensure power is 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 Bushing fo...

$0.85

Frequently Asked Questions

Does this Fitting fit my Goodman WFM18140S5DNCB — B1392139?

Yes. This is the factory-specified OEM fitting for the Goodman WFM18140S5DNCB — 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 fitting on my Goodman WFM18140S5DNCB — 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 fitting?

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

Is this 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 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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