What are the specs for this Fitting?

The correct replacement for Goodman model AMEC960403ANAA Furnace — 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 AMEC960403ANAA Furnace — 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 Vinyl Cap 1-Piece for AMEC960403ANAA Furnace — A1781105

Name: OEM Goodman Vinyl Cap 1-Piece for AMEC960403ANAA Furnace — A1781105
Brand: Goodman
SKU: GOODMAN-4108
Price: 6.95 USD
Availability: InStock

SKU: GOODMAN-4108 Brand: Goodman

$6.95 $9.95

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Goodman A1781105 1-Piece Vinyl Cap

The Goodman A1781105 is a genuine OEM 1-piece vinyl cap used on the AMEC960403ANAA furnace and compatible Goodman/Amana models. These small protective caps seal off unused ports, cover exposed fittings, or protect tubing connections and threaded stubs from dust, moisture, and airflow leakage. Though inexpensive, a missing cap can allow air bypass or debris intrusion that affects furnace performance.

Specifications

OEM Part Number: A1781105
Type: 1-piece molded vinyl cap / plug
Material: Flexible vinyl
Fits: AMEC960403ANAA and compatible Goodman/Amana furnaces
Function: Seals and protects unused ports or fittings

OEM vs. Generic

The OEM cap is sized to the exact port diameter for a snug, leak-free press fit. Generic vinyl caps come in assortment packs but may fit loose or tight; for a guaranteed match on your furnace, the OEM part removes the guesswork at a minimal cost.

Installation Difficulty

Very Easy (1/5). Simply press the cap onto the target port or fitting by hand — no tools required. 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 Vinyl Cap 1-Piece fo...

$6.95

Frequently Asked Questions

Does this Fitting fit my Goodman AMEC960403ANAA Furnace — A1781105?

Yes. This is the factory-specified OEM fitting for the Goodman AMEC960403ANAA Furnace — 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 AMEC960403ANAA Furnace — 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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