What are the specs for this Furnace Fitting?

The correct replacement for Goodman model AMS80905CNA — 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 AMS80905CNA — 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 AMS80905CNA — B1392139

Name: OEM Goodman Sight Glass View Port Bushing for AMS80905CNA — B1392139
Brand: Goodman
SKU: GOODMAN-7100
Price: 6.95 USD
Availability: InStock

SKU: GOODMAN-7100 Brand: Goodman

$6.95 $8.95

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Goodman B1392139 View Port Bushing

The Goodman B1392139 View Port Bushing is a genuine OEM component engineered for the AMS80905CNA gas furnace and compatible Goodman and Amana 80% AFUE models. This molded bushing seats into the burner-compartment access panel and secures the sight glass, giving technicians a clear, sealed window to inspect burner flame quality during operation and service. Over time the original bushing can crack, harden, or fall out from repeated heating and cooling cycles — replacing it restores a proper seal and keeps the flame-inspection port safe and functional.

Specifications

OEM Part Number: B1392139
Part Type: View port / sight glass bushing
Material: High-temperature molded polymer
Mounting: Snap-fit into burner access panel
Compatibility: Goodman / Amana AMS80905CNA and related 80% furnaces
Color: Black

OEM vs. Generic

This is a factory-original Goodman part, guaranteeing exact fit, correct high-temperature rating, and a proper seal at the inspection port. Generic substitutes often use lower-grade plastic that deforms near the burner box and may leave gaps. Choosing OEM protects combustion-chamber integrity and avoids repeat failures.

Installation Difficulty

Easy — DIY friendly. Installs in about 5 minutes with no special tools; simply power down the furnace, remove the old bushing, and press the new one into place. No professional required.

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...

$6.95

Frequently Asked Questions

Does this Furnace Fitting fit my Goodman AMS80905CNA — B1392139?

Yes. This is the factory-specified OEM furnace fitting for the Goodman AMS80905CNA — 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 AMS80905CNA — 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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