What are the specs for this Cap?

The correct replacement for Goodman model AMVC961005DNAA — 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 AMVC961005DNAA — A1781105.

What symptoms indicate I need a new cap?

Common symptoms that indicate you need a new cap include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

Is this cap 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 Caps 1-Piece for AMVC961005DNAA — A1781105

Name: OEM Goodman Vinyl Caps 1-Piece for AMVC961005DNAA — A1781105
Brand: Goodman
SKU: GOODMAN-9111
Price: 3.95 USD
Availability: InStock

SKU: GOODMAN-9111 Brand: Goodman

$3.95 $5.25

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Goodman A1781105 1-Piece Vinyl Cap

The genuine OEM Goodman A1781105 is a molded 1-piece vinyl protective cap used throughout the Amana/Goodman AMVC961005DNAA variable-speed gas furnace. These caps seal unused ports, cover exposed terminals or tube ends, and protect fittings from dust, moisture, and accidental contact during and after installation. Though small, a missing or degraded cap can expose a connection point to corrosion or allow air infiltration where a port is meant to stay sealed.

Specifications

OEM Part Number: A1781105
Category: Fitting / Protective Cap
Configuration: 1-piece molded vinyl
Compatible Model: AMVC961005DNAA
Brand: Goodman / Amana (interchangeable)
Equipment Type: Gas Furnace

OEM vs. Generic

Our OEM vinyl cap is molded to the exact diameter and depth Goodman specifies, so it seats fully and stays put through thermal cycling. Generic caps often run loose or brittle and can pop off during operation. For sealing furnace ports correctly, the factory part is worth the small premium.

Installation Difficulty

Very easy — no tools required. Simply press the cap onto the appropriate port or terminal. Disconnect furnace power before servicing. If you are unsure which port the cap belongs to, refer to your Goodman parts diagram.

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 Caps 1-Piece f...

$3.95

Frequently Asked Questions

Does this Cap fit my Goodman AMVC961005DNAA — A1781105?

Yes. This is the factory-specified OEM cap for the Goodman AMVC961005DNAA — 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 cap on my Goodman AMVC961005DNAA — 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 cap?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this cap 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 cap?

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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