What are the specs for this Fitting?

The correct replacement for Goodman model WFM18070S3AXCB Furnace — 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 WFM18070S3AXCB Furnace — 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 WFM18070S3AXCB Furnace — B1392139

Name: OEM Goodman View Port Bushing for WFM18070S3AXCB Furnace — B1392139
Brand: Goodman
SKU: GOODMAN-14060
Price: 6.95 USD
Availability: InStock

SKU: GOODMAN-14060 Brand: Goodman

$6.95 $8.95

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Goodman B1392139 View Port Bushing

The Goodman B1392139 view port bushing is the small rubber/nylon grommet that seats the sight-glass window in your furnace's burner compartment, giving you a safe, sealed opening to observe the flame during operation. This is the genuine OEM part engineered for the Goodman WFM18070S3AXCB gas furnace and other units in the same family. A cracked or missing bushing lets the sight glass rattle loose and can allow air infiltration around the observation port, so replacing a worn one restores a proper seal.

Part Number: B1392139
Type: View port bushing / sight-glass grommet
Material: High-temp molded elastomer
Fits: Goodman WFM18070S3AXCB and compatible furnace models
Function: Secures and seals the flame observation window

OEM vs. Generic

This is a factory-original Goodman component, molded to the exact diameter and temperature spec of the burner compartment opening. Generic universal grommets are often close but not exact, which leads to a loose fit or premature heat degradation. For a critical safety-related sight port, the OEM bushing is the right call.

Install Difficulty

Easy (DIY-friendly) — Typically a press-fit that requires no tools beyond disconnecting power to the furnace first. Most installs take under 5 minutes. Always shut off gas and electrical power before servicing.

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...

$6.95

Frequently Asked Questions

Does this Fitting fit my Goodman WFM18070S3AXCB Furnace — B1392139?

Yes. This is the factory-specified OEM fitting for the Goodman WFM18070S3AXCB Furnace — 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 WFM18070S3AXCB Furnace — 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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