What are the specs for this Fitting?

The correct replacement for Goodman model AMSS920804CNAA — A1781105 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 AMSS920804CNAA — A1781105.

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 Amana 1-Piece Vinyl Cap Fitting for AMSS920804CNAA — A1781105

Name: OEM Goodman Amana 1-Piece Vinyl Cap Fitting for AMSS920804CNAA — A1781105
Brand: Goodman
SKU: GOODMAN-7465
Price: 3.95 USD
Availability: InStock

SKU: GOODMAN-7465 Brand: Goodman

$3.95 $5.25

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Goodman A1781105 1-Piece Vinyl Cap

Genuine OEM Goodman/Amana A1781105 vinyl cap, a factory-original protective fitting engineered for the AMSS920804CNAA gas furnace and compatible Goodman/Amana models. This small but essential component seals unused ports and openings, keeping debris, moisture, and airflow leaks out of the cabinet so your furnace operates as designed.

Part Number: A1781105
Type: 1-piece molded vinyl cap
Fits Model: AMSS920804CNAA (Furnace)
Brand: Goodman / Amana OEM
Material: Durable heat-tolerant vinyl

OEM vs. Generic

The genuine OEM A1781105 is molded to exact factory dimensions for a leak-free press fit. Generic caps often run loose or oversized, allowing rattle and air bypass. For a furnace cabinet, the precise OEM fit is worth the small price difference.

Install Difficulty

Easy (1/5) — Hand-press installation, no tools required. Typical replacement time under 2 minutes.

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 Amana 1-Piece Vinyl ...

$3.95

Frequently Asked Questions

Does this Fitting fit my Goodman AMSS920804CNAA — A1781105?

Yes. This is the factory-specified OEM fitting for the Goodman AMSS920804CNAA — A1781105. 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 AMSS920804CNAA — A1781105?

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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