What are the specs for this Fitting?

The correct replacement for Goodman model WFD18090S4BXCB — 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 WFD18090S4BXCB — 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 WFD18090S4BXCB — B1392139

Name: OEM Goodman View Port Bushing for WFD18090S4BXCB — B1392139
Brand: Goodman
SKU: GOODMAN-13870
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-13870 Brand: Goodman

$8.95 $11.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman B1392139 View Port Bushing is a genuine OEM replacement grommet that seats the sight-glass window on the burner compartment of your WFD18090S4BXCB furnace. This small but critical rubber bushing seals the inspection port so you can safely watch flame ignition and burner operation without combustion gases or heat escaping into the cabinet. A cracked, missing, or brittle bushing lets the view port rattle loose and can trip flame-rollout or pressure faults.

Specifications

Part type: View port / sight-glass bushing
OEM part number: B1392139
Brand: Goodman
Equipment: Gas furnace burner compartment
Fits model: WFD18090S4BXCB
Material: Heat-resistant molded grommet

OEM vs. Generic

Choosing the genuine Goodman OEM B1392139 guarantees the exact bore diameter and temperature rating specified for this cabinet. Generic universal grommets often run undersized or use lower-grade rubber that hardens and shrinks near the heat exchanger, breaking the seal within a season. OEM keeps your factory fit and safety certification intact.

Installation Difficulty

Easy (1/5). Power down the furnace, pop the old bushing out of the port, and press the new one into place by hand — no tools or wiring required. Typical install time is under five minutes. If your furnace is repeatedly losing the view port, inspect the surrounding sheet metal for warping.

Always confirm your model and part number before ordering. Contact info@nationalhvacparts.com with questions about compatibility.

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...

$8.95

Frequently Asked Questions

Does this Fitting fit my Goodman WFD18090S4BXCB — B1392139?

Yes. This is the factory-specified OEM fitting for the Goodman WFD18090S4BXCB — 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 WFD18090S4BXCB — 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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